./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_lamport.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_lamport.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB --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 d49d34698411f85a0a6e83adb869f73bcb1d6aade5262b0ab5e3122db7000276 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:07:16,155 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:07:16,249 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:07:16,259 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:07:16,259 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:07:16,298 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:07:16,299 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:07:16,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:07:16,300 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:07:16,300 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:07:16,300 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:07:16,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:07:16,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:07:16,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:07:16,301 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:07:16,301 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:07:16,301 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:07:16,302 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:07:16,302 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:07:16,302 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:07:16,303 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:07:16,303 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:07:16,303 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:07:16,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:07:16,303 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:07:16,303 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:07:16,303 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:07:16,303 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:07:16,303 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:07:16,303 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:16,303 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:16,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:16,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:16,304 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:07:16,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:16,304 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:16,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:16,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:16,304 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:07:16,304 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:07:16,304 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:07:16,305 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:07:16,305 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:07:16,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:07:16,305 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:07:16,305 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:07:16,305 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:07:16,305 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:07:16,305 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB 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 -> d49d34698411f85a0a6e83adb869f73bcb1d6aade5262b0ab5e3122db7000276 [2024-11-28 02:07:16,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:07:16,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:07:16,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:07:16,599 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:07:16,599 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:07:16,600 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/seq-pthread/cs_lamport.i [2024-11-28 02:07:19,785 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/data/c227e72ea/c8b54e2699814dd19d5fad545b60684e/FLAG1f45e6b02 [2024-11-28 02:07:20,180 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:07:20,180 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/sv-benchmarks/c/seq-pthread/cs_lamport.i [2024-11-28 02:07:20,203 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/data/c227e72ea/c8b54e2699814dd19d5fad545b60684e/FLAG1f45e6b02 [2024-11-28 02:07:20,348 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/data/c227e72ea/c8b54e2699814dd19d5fad545b60684e [2024-11-28 02:07:20,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:07:20,352 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:07:20,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:20,355 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:07:20,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:07:20,360 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:20" (1/1) ... [2024-11-28 02:07:20,361 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1af76dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:20, skipping insertion in model container [2024-11-28 02:07:20,362 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:20" (1/1) ... [2024-11-28 02:07:20,410 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:07:20,810 WARN L250 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_e5d29059-d164-4b2d-8013-041bc387e364/sv-benchmarks/c/seq-pthread/cs_lamport.i[23604,23617] [2024-11-28 02:07:20,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:20,977 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:07:21,025 WARN L250 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_e5d29059-d164-4b2d-8013-041bc387e364/sv-benchmarks/c/seq-pthread/cs_lamport.i[23604,23617] [2024-11-28 02:07:21,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:21,137 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:07:21,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:21 WrapperNode [2024-11-28 02:07:21,138 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:21,139 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:21,139 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:07:21,139 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:07:21,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:21" (1/1) ... [2024-11-28 02:07:21,174 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:21" (1/1) ... [2024-11-28 02:07:21,217 INFO L138 Inliner]: procedures = 145, calls = 360, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 475 [2024-11-28 02:07:21,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:21,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:07:21,219 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:07:21,219 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:07:21,227 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:21" (1/1) ... [2024-11-28 02:07:21,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:21" (1/1) ... [2024-11-28 02:07:21,238 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:21" (1/1) ... [2024-11-28 02:07:21,285 INFO L175 MemorySlicer]: Split 168 memory accesses to 20 slices as follows [2, 5, 8, 8, 8, 13, 29, 21, 7, 7, 7, 7, 7, 5, 5, 6, 5, 13, 5, 0]. 17 percent of accesses are in the largest equivalence class. The 46 initializations are split as follows [2, 0, 3, 3, 3, 0, 9, 9, 3, 3, 3, 3, 3, 0, 0, 2, 0, 0, 0, 0]. The 42 writes are split as follows [0, 1, 2, 2, 2, 1, 11, 6, 2, 2, 2, 2, 2, 1, 1, 2, 1, 1, 1, 0]. [2024-11-28 02:07:21,285 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:21" (1/1) ... [2024-11-28 02:07:21,286 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:21" (1/1) ... [2024-11-28 02:07:21,341 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:21" (1/1) ... [2024-11-28 02:07:21,346 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:21" (1/1) ... [2024-11-28 02:07:21,356 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:21" (1/1) ... [2024-11-28 02:07:21,370 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:21" (1/1) ... [2024-11-28 02:07:21,377 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:21" (1/1) ... [2024-11-28 02:07:21,398 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:07:21,401 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:07:21,401 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:07:21,401 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:07:21,402 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:21" (1/1) ... [2024-11-28 02:07:21,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:21,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:21,443 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:07:21,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:07:21,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:07:21,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:07:21,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 02:07:21,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 02:07:21,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 02:07:21,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 02:07:21,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 02:07:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 02:07:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-28 02:07:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-28 02:07:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-28 02:07:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-28 02:07:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-28 02:07:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-28 02:07:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-28 02:07:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-28 02:07:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-28 02:07:21,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-28 02:07:21,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-28 02:07:21,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-28 02:07:21,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:07:21,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:07:21,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 02:07:21,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 02:07:21,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 02:07:21,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 02:07:21,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 02:07:21,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 02:07:21,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-28 02:07:21,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-28 02:07:21,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-28 02:07:21,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-28 02:07:21,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-28 02:07:21,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-28 02:07:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-28 02:07:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-28 02:07:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-28 02:07:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-28 02:07:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-28 02:07:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-28 02:07:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:07:21,480 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:07:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:07:21,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:07:21,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 02:07:21,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 02:07:21,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 02:07:21,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 02:07:21,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 02:07:21,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 02:07:21,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 02:07:21,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-28 02:07:21,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-28 02:07:21,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-28 02:07:21,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-28 02:07:21,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-28 02:07:21,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-28 02:07:21,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-28 02:07:21,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-28 02:07:21,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-28 02:07:21,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-28 02:07:21,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-28 02:07:21,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-11-28 02:07:21,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-11-28 02:07:21,483 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2024-11-28 02:07:21,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2024-11-28 02:07:21,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 02:07:21,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 02:07:21,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 02:07:21,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 02:07:21,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 02:07:21,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 02:07:21,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 02:07:21,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-28 02:07:21,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-28 02:07:21,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-28 02:07:21,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-28 02:07:21,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-28 02:07:21,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-28 02:07:21,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-28 02:07:21,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-28 02:07:21,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-28 02:07:21,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-28 02:07:21,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-28 02:07:21,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-11-28 02:07:21,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-11-28 02:07:21,485 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2024-11-28 02:07:21,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2024-11-28 02:07:21,485 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-11-28 02:07:21,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-11-28 02:07:21,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:07:21,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 02:07:21,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 02:07:21,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 02:07:21,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 02:07:21,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 02:07:21,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 02:07:21,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-28 02:07:21,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-28 02:07:21,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-28 02:07:21,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-28 02:07:21,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-28 02:07:21,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-28 02:07:21,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-28 02:07:21,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-28 02:07:21,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-28 02:07:21,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-28 02:07:21,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-28 02:07:21,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-28 02:07:21,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-11-28 02:07:21,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-11-28 02:07:21,490 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2024-11-28 02:07:21,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2024-11-28 02:07:21,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:07:21,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:07:21,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:07:21,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 02:07:21,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 02:07:21,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 02:07:21,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 02:07:21,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 02:07:21,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-28 02:07:21,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-28 02:07:21,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-28 02:07:21,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-28 02:07:21,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-28 02:07:21,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-28 02:07:21,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-28 02:07:21,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-28 02:07:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-28 02:07:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-28 02:07:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-28 02:07:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-28 02:07:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:07:21,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:07:21,836 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:07:21,838 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:07:25,075 INFO L? ?]: Removed 53 outVars from TransFormulas that were not future-live. [2024-11-28 02:07:25,075 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:07:25,092 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:07:25,092 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:07:25,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:25 BoogieIcfgContainer [2024-11-28 02:07:25,095 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:07:25,097 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:07:25,097 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:07:25,102 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:07:25,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:07:20" (1/3) ... [2024-11-28 02:07:25,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48024362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:25, skipping insertion in model container [2024-11-28 02:07:25,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:21" (2/3) ... [2024-11-28 02:07:25,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48024362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:25, skipping insertion in model container [2024-11-28 02:07:25,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:25" (3/3) ... [2024-11-28 02:07:25,108 INFO L128 eAbstractionObserver]: Analyzing ICFG cs_lamport.i [2024-11-28 02:07:25,124 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:07:25,125 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG cs_lamport.i that has 6 procedures, 118 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-28 02:07:25,199 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:07:25,216 INFO L333 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, 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;@74a6b06a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:07:25,216 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:07:25,221 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 75 states have (on average 1.3066666666666666) internal successors, (98), 76 states have internal predecessors, (98), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 02:07:25,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 02:07:25,242 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:25,243 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:25,243 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:25,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:25,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1305745395, now seen corresponding path program 1 times [2024-11-28 02:07:25,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:25,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500461608] [2024-11-28 02:07:25,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:25,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:26,281 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-28 02:07:26,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:26,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500461608] [2024-11-28 02:07:26,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500461608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:26,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:26,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:26,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360069654] [2024-11-28 02:07:26,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:26,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:26,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:26,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:26,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:26,321 INFO L87 Difference]: Start difference. First operand has 118 states, 75 states have (on average 1.3066666666666666) internal successors, (98), 76 states have internal predecessors, (98), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-28 02:07:26,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:26,432 INFO L93 Difference]: Finished difference Result 239 states and 381 transitions. [2024-11-28 02:07:26,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:26,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 144 [2024-11-28 02:07:26,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:26,444 INFO L225 Difference]: With dead ends: 239 [2024-11-28 02:07:26,444 INFO L226 Difference]: Without dead ends: 119 [2024-11-28 02:07:26,449 INFO L434 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 [2024-11-28 02:07:26,452 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 5 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:26,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 321 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:07:26,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-28 02:07:26,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 115. [2024-11-28 02:07:26,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 73 states have (on average 1.2465753424657535) internal successors, (91), 73 states have internal predecessors, (91), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 02:07:26,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 163 transitions. [2024-11-28 02:07:26,510 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 163 transitions. Word has length 144 [2024-11-28 02:07:26,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:26,510 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 163 transitions. [2024-11-28 02:07:26,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-28 02:07:26,511 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 163 transitions. [2024-11-28 02:07:26,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-28 02:07:26,517 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:26,517 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:26,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:07:26,518 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:26,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:26,521 INFO L85 PathProgramCache]: Analyzing trace with hash 367110635, now seen corresponding path program 1 times [2024-11-28 02:07:26,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:26,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588035839] [2024-11-28 02:07:26,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:26,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:27,123 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-28 02:07:27,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:27,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588035839] [2024-11-28 02:07:27,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588035839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:27,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:27,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:27,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902431169] [2024-11-28 02:07:27,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:27,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:27,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:27,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:27,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:27,130 INFO L87 Difference]: Start difference. First operand 115 states and 163 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-28 02:07:27,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:27,193 INFO L93 Difference]: Finished difference Result 229 states and 326 transitions. [2024-11-28 02:07:27,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:27,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 148 [2024-11-28 02:07:27,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:27,196 INFO L225 Difference]: With dead ends: 229 [2024-11-28 02:07:27,196 INFO L226 Difference]: Without dead ends: 117 [2024-11-28 02:07:27,197 INFO L434 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 [2024-11-28 02:07:27,198 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 1 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:27,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 317 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:27,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-28 02:07:27,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 116. [2024-11-28 02:07:27,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 74 states have (on average 1.2432432432432432) internal successors, (92), 74 states have internal predecessors, (92), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 02:07:27,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 164 transitions. [2024-11-28 02:07:27,230 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 164 transitions. Word has length 148 [2024-11-28 02:07:27,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:27,230 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 164 transitions. [2024-11-28 02:07:27,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-28 02:07:27,231 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 164 transitions. [2024-11-28 02:07:27,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 02:07:27,233 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:27,233 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:27,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:07:27,234 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:27,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:27,234 INFO L85 PathProgramCache]: Analyzing trace with hash -690198353, now seen corresponding path program 1 times [2024-11-28 02:07:27,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:27,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874243619] [2024-11-28 02:07:27,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:27,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:27,800 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-28 02:07:27,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:27,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874243619] [2024-11-28 02:07:27,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874243619] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:27,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379587152] [2024-11-28 02:07:27,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:27,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:27,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:27,806 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:27,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:07:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:28,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:07:28,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:28,572 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-28 02:07:28,572 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:07:28,838 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-28 02:07:28,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379587152] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:07:28,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:07:28,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-28 02:07:28,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880157123] [2024-11-28 02:07:28,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:07:28,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:07:28,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:28,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:07:28,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:28,844 INFO L87 Difference]: Start difference. First operand 116 states and 164 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 02:07:28,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:28,923 INFO L93 Difference]: Finished difference Result 233 states and 331 transitions. [2024-11-28 02:07:28,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:07:28,926 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 150 [2024-11-28 02:07:28,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:28,927 INFO L225 Difference]: With dead ends: 233 [2024-11-28 02:07:28,927 INFO L226 Difference]: Without dead ends: 120 [2024-11-28 02:07:28,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 297 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:28,929 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 1 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:28,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 474 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:28,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-28 02:07:28,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-28 02:07:28,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 78 states have (on average 1.2307692307692308) internal successors, (96), 78 states have internal predecessors, (96), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 02:07:28,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 168 transitions. [2024-11-28 02:07:28,954 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 168 transitions. Word has length 150 [2024-11-28 02:07:28,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:28,956 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 168 transitions. [2024-11-28 02:07:28,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-28 02:07:28,956 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 168 transitions. [2024-11-28 02:07:28,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 02:07:28,961 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:28,961 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:28,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 02:07:29,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:29,162 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:29,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:29,163 INFO L85 PathProgramCache]: Analyzing trace with hash 2019050295, now seen corresponding path program 2 times [2024-11-28 02:07:29,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:29,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141170811] [2024-11-28 02:07:29,163 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:07:29,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:29,355 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:07:29,355 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:07:29,673 INFO L134 CoverageAnalysis]: Checked inductivity of 934 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 934 trivial. 0 not checked. [2024-11-28 02:07:29,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:29,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141170811] [2024-11-28 02:07:29,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141170811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:29,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:29,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:07:29,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481459910] [2024-11-28 02:07:29,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:29,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:29,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:29,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:29,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:29,676 INFO L87 Difference]: Start difference. First operand 120 states and 168 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-28 02:07:29,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:29,742 INFO L93 Difference]: Finished difference Result 224 states and 321 transitions. [2024-11-28 02:07:29,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:29,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 154 [2024-11-28 02:07:29,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:29,747 INFO L225 Difference]: With dead ends: 224 [2024-11-28 02:07:29,750 INFO L226 Difference]: Without dead ends: 174 [2024-11-28 02:07:29,751 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:29,752 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 99 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:29,754 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 498 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:29,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-28 02:07:29,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2024-11-28 02:07:29,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 114 states have (on average 1.2719298245614035) internal successors, (145), 114 states have internal predecessors, (145), 49 states have call successors, (49), 10 states have call predecessors, (49), 10 states have return successors, (53), 49 states have call predecessors, (53), 49 states have call successors, (53) [2024-11-28 02:07:29,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 247 transitions. [2024-11-28 02:07:29,794 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 247 transitions. Word has length 154 [2024-11-28 02:07:29,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:29,794 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 247 transitions. [2024-11-28 02:07:29,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-28 02:07:29,795 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 247 transitions. [2024-11-28 02:07:29,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-28 02:07:29,801 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:29,802 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:29,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:07:29,802 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:29,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:29,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1495738663, now seen corresponding path program 1 times [2024-11-28 02:07:29,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:29,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395564153] [2024-11-28 02:07:29,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:29,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:30,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2024-11-28 02:07:30,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:30,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395564153] [2024-11-28 02:07:30,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395564153] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:30,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561391511] [2024-11-28 02:07:30,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:30,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:30,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:30,451 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:30,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:07:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:31,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 1546 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:07:31,265 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:31,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2024-11-28 02:07:31,359 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:07:32,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2024-11-28 02:07:32,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561391511] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:07:32,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:07:32,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-28 02:07:32,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344307988] [2024-11-28 02:07:32,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:07:32,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:07:32,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:32,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:07:32,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:32,010 INFO L87 Difference]: Start difference. First operand 174 states and 247 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-28 02:07:32,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:32,129 INFO L93 Difference]: Finished difference Result 355 states and 503 transitions. [2024-11-28 02:07:32,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:07:32,136 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 223 [2024-11-28 02:07:32,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:32,138 INFO L225 Difference]: With dead ends: 355 [2024-11-28 02:07:32,141 INFO L226 Difference]: Without dead ends: 194 [2024-11-28 02:07:32,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 443 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:32,144 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 5 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:32,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 470 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:07:32,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-28 02:07:32,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-11-28 02:07:32,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 134 states have (on average 1.2462686567164178) internal successors, (167), 134 states have internal predecessors, (167), 49 states have call successors, (49), 10 states have call predecessors, (49), 10 states have return successors, (53), 49 states have call predecessors, (53), 49 states have call successors, (53) [2024-11-28 02:07:32,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 269 transitions. [2024-11-28 02:07:32,183 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 269 transitions. Word has length 223 [2024-11-28 02:07:32,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:32,183 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 269 transitions. [2024-11-28 02:07:32,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-28 02:07:32,184 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 269 transitions. [2024-11-28 02:07:32,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-11-28 02:07:32,189 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:32,189 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:32,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 02:07:32,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:32,394 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:32,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:32,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1961849389, now seen corresponding path program 2 times [2024-11-28 02:07:32,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:32,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304071610] [2024-11-28 02:07:32,395 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:07:32,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:32,632 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:07:32,632 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:07:32,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1448 trivial. 0 not checked. [2024-11-28 02:07:32,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:32,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304071610] [2024-11-28 02:07:32,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304071610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:32,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:32,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:07:32,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990903673] [2024-11-28 02:07:32,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:32,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:32,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:32,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:32,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:32,904 INFO L87 Difference]: Start difference. First operand 194 states and 269 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-28 02:07:36,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:07:40,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:07:41,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:41,135 INFO L93 Difference]: Finished difference Result 488 states and 695 transitions. [2024-11-28 02:07:41,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:41,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 243 [2024-11-28 02:07:41,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:41,141 INFO L225 Difference]: With dead ends: 488 [2024-11-28 02:07:41,141 INFO L226 Difference]: Without dead ends: 344 [2024-11-28 02:07:41,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:41,142 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 142 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:41,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 669 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2024-11-28 02:07:41,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-28 02:07:41,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 340. [2024-11-28 02:07:41,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 224 states have (on average 1.2544642857142858) internal successors, (281), 224 states have internal predecessors, (281), 95 states have call successors, (95), 20 states have call predecessors, (95), 20 states have return successors, (110), 95 states have call predecessors, (110), 95 states have call successors, (110) [2024-11-28 02:07:41,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 486 transitions. [2024-11-28 02:07:41,204 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 486 transitions. Word has length 243 [2024-11-28 02:07:41,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:41,204 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 486 transitions. [2024-11-28 02:07:41,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-28 02:07:41,205 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 486 transitions. [2024-11-28 02:07:41,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-11-28 02:07:41,212 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:41,213 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:41,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:07:41,213 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:41,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:41,214 INFO L85 PathProgramCache]: Analyzing trace with hash -479871529, now seen corresponding path program 1 times [2024-11-28 02:07:41,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:41,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558389259] [2024-11-28 02:07:41,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:41,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:42,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1448 trivial. 0 not checked. [2024-11-28 02:07:42,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:42,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558389259] [2024-11-28 02:07:42,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558389259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:42,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:42,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:07:42,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743222657] [2024-11-28 02:07:42,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:42,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:42,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:42,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:42,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:42,637 INFO L87 Difference]: Start difference. First operand 340 states and 486 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-28 02:07:46,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:07:50,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:07:50,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:50,891 INFO L93 Difference]: Finished difference Result 610 states and 865 transitions. [2024-11-28 02:07:50,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:50,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 243 [2024-11-28 02:07:50,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:50,897 INFO L225 Difference]: With dead ends: 610 [2024-11-28 02:07:50,897 INFO L226 Difference]: Without dead ends: 314 [2024-11-28 02:07:50,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:50,901 INFO L435 NwaCegarLoop]: 266 mSDtfsCounter, 138 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:50,901 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 673 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2024-11-28 02:07:50,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-28 02:07:50,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 310. [2024-11-28 02:07:50,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 205 states have (on average 1.2146341463414634) internal successors, (249), 205 states have internal predecessors, (249), 86 states have call successors, (86), 18 states have call predecessors, (86), 18 states have return successors, (94), 86 states have call predecessors, (94), 86 states have call successors, (94) [2024-11-28 02:07:50,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 429 transitions. [2024-11-28 02:07:50,949 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 429 transitions. Word has length 243 [2024-11-28 02:07:50,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:50,950 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 429 transitions. [2024-11-28 02:07:50,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-28 02:07:50,951 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 429 transitions. [2024-11-28 02:07:50,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-11-28 02:07:50,957 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:50,957 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:50,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:07:50,958 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:50,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:50,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1935573567, now seen corresponding path program 1 times [2024-11-28 02:07:50,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:50,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514983550] [2024-11-28 02:07:50,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:50,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:51,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:51,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1444 trivial. 0 not checked. [2024-11-28 02:07:51,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:51,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514983550] [2024-11-28 02:07:51,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514983550] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:51,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045139379] [2024-11-28 02:07:51,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:51,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:51,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:51,963 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:51,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:07:52,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:52,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 1860 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 02:07:52,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:53,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 352 proven. 4 refuted. 0 times theorem prover too weak. 1092 trivial. 0 not checked. [2024-11-28 02:07:53,202 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:07:54,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1444 trivial. 0 not checked. [2024-11-28 02:07:54,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045139379] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:07:54,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:07:54,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 11 [2024-11-28 02:07:54,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784937506] [2024-11-28 02:07:54,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:07:54,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:07:54,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:54,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:07:54,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:07:54,088 INFO L87 Difference]: Start difference. First operand 310 states and 429 transitions. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 9 states have call successors, (62), 5 states have call predecessors, (62), 6 states have return successors, (63), 7 states have call predecessors, (63), 9 states have call successors, (63) [2024-11-28 02:07:55,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:07:59,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:08:00,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:08:00,724 INFO L93 Difference]: Finished difference Result 602 states and 852 transitions. [2024-11-28 02:08:00,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:08:00,725 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 9 states have call successors, (62), 5 states have call predecessors, (62), 6 states have return successors, (63), 7 states have call predecessors, (63), 9 states have call successors, (63) Word has length 243 [2024-11-28 02:08:00,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:08:00,728 INFO L225 Difference]: With dead ends: 602 [2024-11-28 02:08:00,728 INFO L226 Difference]: Without dead ends: 332 [2024-11-28 02:08:00,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:08:00,730 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 246 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 159 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:08:00,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 575 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2024-11-28 02:08:00,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-28 02:08:00,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 329. [2024-11-28 02:08:00,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 223 states have (on average 1.2376681614349776) internal successors, (276), 225 states have internal predecessors, (276), 77 states have call successors, (77), 26 states have call predecessors, (77), 28 states have return successors, (97), 77 states have call predecessors, (97), 77 states have call successors, (97) [2024-11-28 02:08:00,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 450 transitions. [2024-11-28 02:08:00,760 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 450 transitions. Word has length 243 [2024-11-28 02:08:00,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:08:00,760 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 450 transitions. [2024-11-28 02:08:00,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 9 states have call successors, (62), 5 states have call predecessors, (62), 6 states have return successors, (63), 7 states have call predecessors, (63), 9 states have call successors, (63) [2024-11-28 02:08:00,761 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 450 transitions. [2024-11-28 02:08:00,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-11-28 02:08:00,765 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:00,765 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:00,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:08:00,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:00,970 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:00,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:00,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1621989281, now seen corresponding path program 1 times [2024-11-28 02:08:00,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:00,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042611401] [2024-11-28 02:08:00,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:00,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:04,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1444 trivial. 0 not checked. [2024-11-28 02:08:04,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:04,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042611401] [2024-11-28 02:08:04,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042611401] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:08:04,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832053159] [2024-11-28 02:08:04,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:04,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:08:04,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:04,537 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:08:04,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:08:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:05,493 INFO L256 TraceCheckSpWp]: Trace formula consists of 1958 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-28 02:08:05,505 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:08:06,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 02:08:11,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 02:08:11,242 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:08:11,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 15 [2024-11-28 02:08:12,692 INFO L349 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2024-11-28 02:08:12,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 02:08:42,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 397 proven. 4 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2024-11-28 02:08:42,928 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:08:43,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2024-11-28 02:08:43,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2024-11-28 02:08:44,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2024-11-28 02:08:44,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2024-11-28 02:08:44,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2024-11-28 02:08:44,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2024-11-28 02:08:44,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1444 trivial. 0 not checked. [2024-11-28 02:08:44,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832053159] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:08:44,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:08:44,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14, 9] total 37 [2024-11-28 02:08:44,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333207279] [2024-11-28 02:08:44,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:08:44,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-28 02:08:44,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:44,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-28 02:08:44,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1192, Unknown=1, NotChecked=0, Total=1332 [2024-11-28 02:08:44,837 INFO L87 Difference]: Start difference. First operand 329 states and 450 transitions. Second operand has 37 states, 34 states have (on average 4.323529411764706) internal successors, (147), 34 states have internal predecessors, (147), 18 states have call successors, (72), 12 states have call predecessors, (72), 14 states have return successors, (72), 16 states have call predecessors, (72), 18 states have call successors, (72) [2024-11-28 02:08:48,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:08:53,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:08:55,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:08:56,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:08:58,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:09:02,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:09:03,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:09:07,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:09:11,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:09:12,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:09:16,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:09:20,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:09:25,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:09:29,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:09:33,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:09:38,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:09:50,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:09:50,038 INFO L93 Difference]: Finished difference Result 647 states and 934 transitions. [2024-11-28 02:09:50,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 02:09:50,039 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 34 states have (on average 4.323529411764706) internal successors, (147), 34 states have internal predecessors, (147), 18 states have call successors, (72), 12 states have call predecessors, (72), 14 states have return successors, (72), 16 states have call predecessors, (72), 18 states have call successors, (72) Word has length 243 [2024-11-28 02:09:50,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:09:50,043 INFO L225 Difference]: With dead ends: 647 [2024-11-28 02:09:50,044 INFO L226 Difference]: Without dead ends: 392 [2024-11-28 02:09:50,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 463 SyntacticMatches, 8 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 39.5s TimeCoverageRelationStatistics Valid=672, Invalid=3487, Unknown=1, NotChecked=0, Total=4160 [2024-11-28 02:09:50,047 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 723 mSDsluCounter, 1481 mSDsCounter, 0 mSdLazyCounter, 2878 mSolverCounterSat, 815 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 3704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 815 IncrementalHoareTripleChecker+Valid, 2878 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:09:50,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 1614 Invalid, 3704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [815 Valid, 2878 Invalid, 11 Unknown, 0 Unchecked, 61.9s Time] [2024-11-28 02:09:50,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-28 02:09:50,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 363. [2024-11-28 02:09:50,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 242 states have (on average 1.2314049586776858) internal successors, (298), 247 states have internal predecessors, (298), 87 states have call successors, (87), 26 states have call predecessors, (87), 33 states have return successors, (131), 89 states have call predecessors, (131), 87 states have call successors, (131) [2024-11-28 02:09:50,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 516 transitions. [2024-11-28 02:09:50,125 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 516 transitions. Word has length 243 [2024-11-28 02:09:50,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:09:50,126 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 516 transitions. [2024-11-28 02:09:50,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 34 states have (on average 4.323529411764706) internal successors, (147), 34 states have internal predecessors, (147), 18 states have call successors, (72), 12 states have call predecessors, (72), 14 states have return successors, (72), 16 states have call predecessors, (72), 18 states have call successors, (72) [2024-11-28 02:09:50,126 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 516 transitions. [2024-11-28 02:09:50,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-28 02:09:50,131 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:09:50,132 INFO L218 NwaCegarLoop]: trace histogram [29, 29, 29, 9, 9, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:09:50,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:09:50,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-28 02:09:50,336 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:09:50,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:09:50,336 INFO L85 PathProgramCache]: Analyzing trace with hash -404382548, now seen corresponding path program 1 times [2024-11-28 02:09:50,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:09:50,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624687844] [2024-11-28 02:09:50,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:50,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:09:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:53,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 1850 trivial. 0 not checked. [2024-11-28 02:09:53,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:09:53,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624687844] [2024-11-28 02:09:53,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624687844] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:09:53,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321014351] [2024-11-28 02:09:53,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:53,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:09:53,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:53,321 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:09:53,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:09:54,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:54,477 INFO L256 TraceCheckSpWp]: Trace formula consists of 2439 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-28 02:09:54,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:54,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-28 02:09:54,973 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:09:54,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 7 [2024-11-28 02:09:55,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2024-11-28 02:09:55,365 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:09:55,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 23 [2024-11-28 02:09:55,493 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:09:55,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 7 [2024-11-28 02:09:55,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 396 proven. 6 refuted. 0 times theorem prover too weak. 1475 trivial. 0 not checked. [2024-11-28 02:09:55,680 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:09:56,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321014351] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:09:56,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:09:56,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2024-11-28 02:09:56,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968211169] [2024-11-28 02:09:56,920 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:09:56,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 02:09:56,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:09:56,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 02:09:56,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2024-11-28 02:09:56,923 INFO L87 Difference]: Start difference. First operand 363 states and 516 transitions. Second operand has 19 states, 17 states have (on average 8.235294117647058) internal successors, (140), 19 states have internal predecessors, (140), 12 states have call successors, (74), 6 states have call predecessors, (74), 7 states have return successors, (74), 11 states have call predecessors, (74), 12 states have call successors, (74) [2024-11-28 02:10:01,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:10:02,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:10:07,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:10:09,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:09,855 INFO L93 Difference]: Finished difference Result 539 states and 767 transitions. [2024-11-28 02:10:09,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:10:09,856 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 8.235294117647058) internal successors, (140), 19 states have internal predecessors, (140), 12 states have call successors, (74), 6 states have call predecessors, (74), 7 states have return successors, (74), 11 states have call predecessors, (74), 12 states have call successors, (74) Word has length 296 [2024-11-28 02:10:09,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:09,860 INFO L225 Difference]: With dead ends: 539 [2024-11-28 02:10:09,860 INFO L226 Difference]: Without dead ends: 365 [2024-11-28 02:10:09,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=229, Invalid=701, Unknown=0, NotChecked=0, Total=930 [2024-11-28 02:10:09,862 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 419 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 285 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:09,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 871 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 860 Invalid, 2 Unknown, 0 Unchecked, 12.5s Time] [2024-11-28 02:10:09,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-28 02:10:09,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 355. [2024-11-28 02:10:09,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 236 states have (on average 1.228813559322034) internal successors, (290), 240 states have internal predecessors, (290), 86 states have call successors, (86), 26 states have call predecessors, (86), 32 states have return successors, (128), 88 states have call predecessors, (128), 86 states have call successors, (128) [2024-11-28 02:10:09,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 504 transitions. [2024-11-28 02:10:09,927 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 504 transitions. Word has length 296 [2024-11-28 02:10:09,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:09,927 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 504 transitions. [2024-11-28 02:10:09,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 8.235294117647058) internal successors, (140), 19 states have internal predecessors, (140), 12 states have call successors, (74), 6 states have call predecessors, (74), 7 states have return successors, (74), 11 states have call predecessors, (74), 12 states have call successors, (74) [2024-11-28 02:10:09,927 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 504 transitions. [2024-11-28 02:10:09,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-28 02:10:09,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:09,933 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:09,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 02:10:10,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 02:10:10,138 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:10,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:10,138 INFO L85 PathProgramCache]: Analyzing trace with hash -162271443, now seen corresponding path program 1 times [2024-11-28 02:10:10,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:10,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437426356] [2024-11-28 02:10:10,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:10,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:10,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1723 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2024-11-28 02:10:10,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:10,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437426356] [2024-11-28 02:10:10,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437426356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:10,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:10:10,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:10:10,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109180182] [2024-11-28 02:10:10,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:10,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:10:10,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:10,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:10:10,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:10:10,533 INFO L87 Difference]: Start difference. First operand 355 states and 504 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-28 02:10:10,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:10,605 INFO L93 Difference]: Finished difference Result 634 states and 966 transitions. [2024-11-28 02:10:10,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:10:10,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 281 [2024-11-28 02:10:10,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:10,609 INFO L225 Difference]: With dead ends: 634 [2024-11-28 02:10:10,610 INFO L226 Difference]: Without dead ends: 359 [2024-11-28 02:10:10,612 INFO L434 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 [2024-11-28 02:10:10,612 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:10,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 314 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:10:10,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-28 02:10:10,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-11-28 02:10:10,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 240 states have (on average 1.225) internal successors, (294), 244 states have internal predecessors, (294), 86 states have call successors, (86), 26 states have call predecessors, (86), 32 states have return successors, (128), 88 states have call predecessors, (128), 86 states have call successors, (128) [2024-11-28 02:10:10,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 508 transitions. [2024-11-28 02:10:10,674 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 508 transitions. Word has length 281 [2024-11-28 02:10:10,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:10,676 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 508 transitions. [2024-11-28 02:10:10,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-28 02:10:10,676 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 508 transitions. [2024-11-28 02:10:10,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-28 02:10:10,679 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:10,680 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:10,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:10:10,680 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:10,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:10,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1936430122, now seen corresponding path program 1 times [2024-11-28 02:10:10,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:10,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336999074] [2024-11-28 02:10:10,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:10,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:11,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:14,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1723 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 1702 trivial. 0 not checked. [2024-11-28 02:10:14,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:14,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336999074] [2024-11-28 02:10:14,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336999074] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:10:14,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79587611] [2024-11-28 02:10:14,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:14,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:10:14,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:10:14,128 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:10:14,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:10:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:15,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 2281 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-28 02:10:15,209 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:10:16,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1723 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 1452 trivial. 0 not checked. [2024-11-28 02:10:16,450 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:10:16,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79587611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:10:16,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:10:16,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [19] total 31 [2024-11-28 02:10:16,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368920983] [2024-11-28 02:10:16,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:10:16,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:10:16,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:16,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:10:16,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=823, Unknown=0, NotChecked=0, Total=930 [2024-11-28 02:10:16,453 INFO L87 Difference]: Start difference. First operand 359 states and 508 transitions. Second operand has 14 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 7 states have call successors, (37), 5 states have call predecessors, (37), 6 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) [2024-11-28 02:10:18,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:10:20,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:10:24,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:24,793 INFO L93 Difference]: Finished difference Result 948 states and 1393 transitions. [2024-11-28 02:10:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-28 02:10:24,794 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 7 states have call successors, (37), 5 states have call predecessors, (37), 6 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) Word has length 278 [2024-11-28 02:10:24,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:24,799 INFO L225 Difference]: With dead ends: 948 [2024-11-28 02:10:24,799 INFO L226 Difference]: Without dead ends: 651 [2024-11-28 02:10:24,801 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=342, Invalid=1914, Unknown=0, NotChecked=0, Total=2256 [2024-11-28 02:10:24,802 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 446 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:24,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 1093 Invalid, 1977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-11-28 02:10:24,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-11-28 02:10:24,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 629. [2024-11-28 02:10:24,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 409 states have (on average 1.1515892420537897) internal successors, (471), 403 states have internal predecessors, (471), 160 states have call successors, (160), 39 states have call predecessors, (160), 59 states have return successors, (260), 186 states have call predecessors, (260), 160 states have call successors, (260) [2024-11-28 02:10:24,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 891 transitions. [2024-11-28 02:10:24,931 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 891 transitions. Word has length 278 [2024-11-28 02:10:24,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:24,931 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 891 transitions. [2024-11-28 02:10:24,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 7 states have call successors, (37), 5 states have call predecessors, (37), 6 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) [2024-11-28 02:10:24,932 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 891 transitions. [2024-11-28 02:10:24,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-28 02:10:24,936 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:24,937 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:24,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 02:10:25,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 02:10:25,137 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:25,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:25,138 INFO L85 PathProgramCache]: Analyzing trace with hash 622600236, now seen corresponding path program 1 times [2024-11-28 02:10:25,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:25,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901167568] [2024-11-28 02:10:25,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:25,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:29,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1723 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1701 trivial. 0 not checked. [2024-11-28 02:10:29,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:29,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901167568] [2024-11-28 02:10:29,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901167568] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:10:29,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267294694] [2024-11-28 02:10:29,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:29,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:10:29,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:10:29,545 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:10:29,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:10:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:32,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 2270 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-28 02:10:32,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:10:33,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-11-28 02:10:33,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 02:10:33,538 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_old(~__CS_thread_index~0)| 1))) (or (= .cse0 (select (select |c_#memory_int#15| |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|) |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.offset|)) (exists ((|v_old(#memory_int#15)_AFTER_CALL_24| (Array Int (Array Int Int)))) (let ((.cse1 (@diff |v_old(#memory_int#15)_AFTER_CALL_24| |c_#memory_int#15|))) (and (= |c_#memory_int#15| (store |v_old(#memory_int#15)_AFTER_CALL_24| .cse1 (select |c_#memory_int#15| .cse1))) (= .cse0 (select (select |v_old(#memory_int#15)_AFTER_CALL_24| |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|) |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.offset|)) (not (= .cse1 |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|))))))) is different from false [2024-11-28 02:10:33,544 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_old(~__CS_thread_index~0)| 1))) (or (= .cse0 (select (select |c_#memory_int#15| |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|) |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.offset|)) (exists ((|v_old(#memory_int#15)_AFTER_CALL_24| (Array Int (Array Int Int)))) (let ((.cse1 (@diff |v_old(#memory_int#15)_AFTER_CALL_24| |c_#memory_int#15|))) (and (= |c_#memory_int#15| (store |v_old(#memory_int#15)_AFTER_CALL_24| .cse1 (select |c_#memory_int#15| .cse1))) (= .cse0 (select (select |v_old(#memory_int#15)_AFTER_CALL_24| |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|) |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.offset|)) (not (= .cse1 |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|))))))) is different from true [2024-11-28 02:10:33,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-28 02:10:33,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1723 backedges. 534 proven. 14 refuted. 0 times theorem prover too weak. 1175 trivial. 0 not checked. [2024-11-28 02:10:33,782 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:10:34,349 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:10:34,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2024-11-28 02:10:34,355 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:10:34,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-28 02:10:35,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267294694] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:10:35,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:10:35,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 19] total 29 [2024-11-28 02:10:35,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305171607] [2024-11-28 02:10:35,236 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:10:35,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-28 02:10:35,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:35,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-28 02:10:35,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=963, Unknown=3, NotChecked=62, Total=1122 [2024-11-28 02:10:35,238 INFO L87 Difference]: Start difference. First operand 629 states and 891 transitions. Second operand has 29 states, 28 states have (on average 4.071428571428571) internal successors, (114), 27 states have internal predecessors, (114), 15 states have call successors, (62), 6 states have call predecessors, (62), 11 states have return successors, (66), 14 states have call predecessors, (66), 15 states have call successors, (66) [2024-11-28 02:10:40,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:10:44,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:10:48,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:10:52,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:10:56,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:11:00,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:11:05,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:11:10,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:11:14,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:11:17,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:11:19,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:11:23,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:11:28,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:11:32,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:11:34,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:11:36,050 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_old(~__CS_thread_index~0)| 1))) (let ((.cse0 (= .cse2 (select (select |c_#memory_int#15| |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|) |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.offset|)))) (and (not (= |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t2~0#1.base| |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|)) .cse0 (or .cse0 (exists ((|v_old(#memory_int#15)_AFTER_CALL_24| (Array Int (Array Int Int)))) (let ((.cse1 (@diff |v_old(#memory_int#15)_AFTER_CALL_24| |c_#memory_int#15|))) (and (= |c_#memory_int#15| (store |v_old(#memory_int#15)_AFTER_CALL_24| .cse1 (select |c_#memory_int#15| .cse1))) (= .cse2 (select (select |v_old(#memory_int#15)_AFTER_CALL_24| |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|) |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.offset|)) (not (= .cse1 |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|))))))))) is different from false [2024-11-28 02:11:36,057 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_old(~__CS_thread_index~0)| 1))) (let ((.cse0 (= .cse2 (select (select |c_#memory_int#15| |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|) |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.offset|)))) (and (not (= |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t2~0#1.base| |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|)) .cse0 (or .cse0 (exists ((|v_old(#memory_int#15)_AFTER_CALL_24| (Array Int (Array Int Int)))) (let ((.cse1 (@diff |v_old(#memory_int#15)_AFTER_CALL_24| |c_#memory_int#15|))) (and (= |c_#memory_int#15| (store |v_old(#memory_int#15)_AFTER_CALL_24| .cse1 (select |c_#memory_int#15| .cse1))) (= .cse2 (select (select |v_old(#memory_int#15)_AFTER_CALL_24| |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|) |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.offset|)) (not (= .cse1 |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|))))))))) is different from true [2024-11-28 02:11:40,457 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_~#__CS_thread_allocated~0.offset| 1)) (.cse1 (+ |c_old(~__CS_thread_index~0)| 1))) (let ((.cse0 (= .cse1 (select (select |c_#memory_int#15| |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|) |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.offset|))) (.cse3 (select (select |c_#memory_int#2| |c_~#__CS_thread_allocated~0.base|) .cse4)) (.cse2 (= (mod c_~__CS_thread_index~0 256) 1))) (and (or (= c_~__CS_thread_index~0 1) (not (= |c_old(~__CS_thread_index~0)| 0))) (not (= |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t2~0#1.base| |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|)) .cse0 (= c_~__CS_thread_index~0 .cse1) (or .cse2 (= .cse3 (select (select |c_old(#memory_int#2)| |c_~#__CS_thread_allocated~0.base|) .cse4))) (or .cse0 (exists ((|v_old(#memory_int#15)_AFTER_CALL_24| (Array Int (Array Int Int)))) (let ((.cse5 (@diff |v_old(#memory_int#15)_AFTER_CALL_24| |c_#memory_int#15|))) (and (= |c_#memory_int#15| (store |v_old(#memory_int#15)_AFTER_CALL_24| .cse5 (select |c_#memory_int#15| .cse5))) (= .cse1 (select (select |v_old(#memory_int#15)_AFTER_CALL_24| |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|) |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.offset|)) (not (= .cse5 |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|)))))) (or (= .cse3 1) (not .cse2))))) is different from false [2024-11-28 02:11:40,464 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_~#__CS_thread_allocated~0.offset| 1)) (.cse1 (+ |c_old(~__CS_thread_index~0)| 1))) (let ((.cse0 (= .cse1 (select (select |c_#memory_int#15| |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|) |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.offset|))) (.cse3 (select (select |c_#memory_int#2| |c_~#__CS_thread_allocated~0.base|) .cse4)) (.cse2 (= (mod c_~__CS_thread_index~0 256) 1))) (and (or (= c_~__CS_thread_index~0 1) (not (= |c_old(~__CS_thread_index~0)| 0))) (not (= |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t2~0#1.base| |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|)) .cse0 (= c_~__CS_thread_index~0 .cse1) (or .cse2 (= .cse3 (select (select |c_old(#memory_int#2)| |c_~#__CS_thread_allocated~0.base|) .cse4))) (or .cse0 (exists ((|v_old(#memory_int#15)_AFTER_CALL_24| (Array Int (Array Int Int)))) (let ((.cse5 (@diff |v_old(#memory_int#15)_AFTER_CALL_24| |c_#memory_int#15|))) (and (= |c_#memory_int#15| (store |v_old(#memory_int#15)_AFTER_CALL_24| .cse5 (select |c_#memory_int#15| .cse5))) (= .cse1 (select (select |v_old(#memory_int#15)_AFTER_CALL_24| |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|) |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.offset|)) (not (= .cse5 |c_##fun~$Pointer$~TO~$Pointer$_main_thread_~#t1~0#1.base|)))))) (or (= .cse3 1) (not .cse2))))) is different from true [2024-11-28 02:11:42,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:42,160 INFO L93 Difference]: Finished difference Result 1042 states and 1485 transitions. [2024-11-28 02:11:42,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-28 02:11:42,161 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 4.071428571428571) internal successors, (114), 27 states have internal predecessors, (114), 15 states have call successors, (62), 6 states have call predecessors, (62), 11 states have return successors, (66), 14 states have call predecessors, (66), 15 states have call successors, (66) Word has length 278 [2024-11-28 02:11:42,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:42,167 INFO L225 Difference]: With dead ends: 1042 [2024-11-28 02:11:42,167 INFO L226 Difference]: Without dead ends: 665 [2024-11-28 02:11:42,171 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 445 SyntacticMatches, 3 SemanticMatches, 60 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 730 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=392, Invalid=3035, Unknown=7, NotChecked=348, Total=3782 [2024-11-28 02:11:42,171 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 206 mSDsluCounter, 1870 mSDsCounter, 0 mSdLazyCounter, 2827 mSolverCounterSat, 193 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 2018 SdHoareTripleChecker+Invalid, 3385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 2827 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 354 IncrementalHoareTripleChecker+Unchecked, 64.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:42,172 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 2018 Invalid, 3385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 2827 Invalid, 11 Unknown, 354 Unchecked, 64.6s Time] [2024-11-28 02:11:42,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-28 02:11:42,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 639. [2024-11-28 02:11:42,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 414 states have (on average 1.1521739130434783) internal successors, (477), 408 states have internal predecessors, (477), 165 states have call successors, (165), 39 states have call predecessors, (165), 59 states have return successors, (268), 191 states have call predecessors, (268), 165 states have call successors, (268) [2024-11-28 02:11:42,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 910 transitions. [2024-11-28 02:11:42,279 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 910 transitions. Word has length 278 [2024-11-28 02:11:42,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:42,279 INFO L471 AbstractCegarLoop]: Abstraction has 639 states and 910 transitions. [2024-11-28 02:11:42,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 4.071428571428571) internal successors, (114), 27 states have internal predecessors, (114), 15 states have call successors, (62), 6 states have call predecessors, (62), 11 states have return successors, (66), 14 states have call predecessors, (66), 15 states have call successors, (66) [2024-11-28 02:11:42,280 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 910 transitions. [2024-11-28 02:11:42,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-28 02:11:42,285 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:42,285 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:42,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 02:11:42,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:11:42,486 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:42,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:42,486 INFO L85 PathProgramCache]: Analyzing trace with hash 235945069, now seen corresponding path program 1 times [2024-11-28 02:11:42,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:42,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514037218] [2024-11-28 02:11:42,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:42,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:44,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1723 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 1707 trivial. 0 not checked. [2024-11-28 02:11:44,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:44,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514037218] [2024-11-28 02:11:44,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514037218] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:11:44,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77238531] [2024-11-28 02:11:44,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:44,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:11:44,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:44,890 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:11:44,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 02:11:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:49,332 INFO L256 TraceCheckSpWp]: Trace formula consists of 2279 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-28 02:11:49,343 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:51,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1723 backedges. 553 proven. 7 refuted. 0 times theorem prover too weak. 1163 trivial. 0 not checked. [2024-11-28 02:11:51,908 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:11:56,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1723 backedges. 25 proven. 22 refuted. 0 times theorem prover too weak. 1676 trivial. 0 not checked. [2024-11-28 02:11:56,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77238531] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:11:56,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:11:56,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15, 17] total 39 [2024-11-28 02:11:56,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625626705] [2024-11-28 02:11:56,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:11:56,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-28 02:11:56,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:56,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-28 02:11:56,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1298, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 02:11:56,638 INFO L87 Difference]: Start difference. First operand 639 states and 910 transitions. Second operand has 39 states, 37 states have (on average 4.513513513513513) internal successors, (167), 39 states have internal predecessors, (167), 25 states have call successors, (80), 11 states have call predecessors, (80), 18 states have return successors, (80), 24 states have call predecessors, (80), 25 states have call successors, (80) [2024-11-28 02:11:58,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:11:59,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:12:03,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:12:07,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:12:11,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:12:16,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:12:20,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:12:24,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:12:28,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:12:31,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:12:35,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:12:39,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:12:43,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:12:45,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:12:49,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:12:54,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:12:58,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:13:02,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:13:06,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:13:10,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:13:14,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:13:46,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:46,383 INFO L93 Difference]: Finished difference Result 1964 states and 2786 transitions. [2024-11-28 02:13:46,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-11-28 02:13:46,384 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 37 states have (on average 4.513513513513513) internal successors, (167), 39 states have internal predecessors, (167), 25 states have call successors, (80), 11 states have call predecessors, (80), 18 states have return successors, (80), 24 states have call predecessors, (80), 25 states have call successors, (80) Word has length 281 [2024-11-28 02:13:46,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:46,393 INFO L225 Difference]: With dead ends: 1964 [2024-11-28 02:13:46,393 INFO L226 Difference]: Without dead ends: 1369 [2024-11-28 02:13:46,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 673 GetRequests, 563 SyntacticMatches, 1 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3547 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=1937, Invalid=10273, Unknown=0, NotChecked=0, Total=12210 [2024-11-28 02:13:46,400 INFO L435 NwaCegarLoop]: 452 mSDtfsCounter, 1942 mSDsluCounter, 4564 mSDsCounter, 0 mSdLazyCounter, 10466 mSolverCounterSat, 1932 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 99.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1964 SdHoareTripleChecker+Valid, 5016 SdHoareTripleChecker+Invalid, 12415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1932 IncrementalHoareTripleChecker+Valid, 10466 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 101.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:46,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1964 Valid, 5016 Invalid, 12415 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1932 Valid, 10466 Invalid, 17 Unknown, 0 Unchecked, 101.4s Time] [2024-11-28 02:13:46,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2024-11-28 02:13:46,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 781. [2024-11-28 02:13:46,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 518 states have (on average 1.1486486486486487) internal successors, (595), 514 states have internal predecessors, (595), 177 states have call successors, (177), 61 states have call predecessors, (177), 85 states have return successors, (296), 205 states have call predecessors, (296), 177 states have call successors, (296) [2024-11-28 02:13:46,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1068 transitions. [2024-11-28 02:13:46,614 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1068 transitions. Word has length 281 [2024-11-28 02:13:46,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:46,614 INFO L471 AbstractCegarLoop]: Abstraction has 781 states and 1068 transitions. [2024-11-28 02:13:46,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 37 states have (on average 4.513513513513513) internal successors, (167), 39 states have internal predecessors, (167), 25 states have call successors, (80), 11 states have call predecessors, (80), 18 states have return successors, (80), 24 states have call predecessors, (80), 25 states have call successors, (80) [2024-11-28 02:13:46,614 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1068 transitions. [2024-11-28 02:13:46,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-28 02:13:46,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:46,620 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 9, 9, 5, 5, 5, 5, 5, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:46,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 02:13:46,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:13:46,820 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:46,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:46,821 INFO L85 PathProgramCache]: Analyzing trace with hash 915963252, now seen corresponding path program 1 times [2024-11-28 02:13:46,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:46,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195184030] [2024-11-28 02:13:46,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:46,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:49,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1578 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 1568 trivial. 0 not checked. [2024-11-28 02:13:49,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:49,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195184030] [2024-11-28 02:13:49,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195184030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:13:49,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697422551] [2024-11-28 02:13:49,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:49,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:13:49,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:49,325 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:13:49,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5d29059-d164-4b2d-8013-041bc387e364/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 02:13:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:54,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 2114 conjuncts, 220 conjuncts are in the unsatisfiable core [2024-11-28 02:13:54,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:55,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 02:13:56,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 02:13:56,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 02:13:56,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 02:13:57,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 02:13:57,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 55 [2024-11-28 02:13:57,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-28 02:13:57,853 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:13:57,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 52 treesize of output 32 [2024-11-28 02:13:58,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-11-28 02:13:59,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 02:13:59,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-28 02:14:03,419 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-28 02:14:03,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 48 [2024-11-28 02:14:03,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2024-11-28 02:14:03,496 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:14:03,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 33 [2024-11-28 02:14:04,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 02:14:04,659 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-11-28 02:14:04,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 128 treesize of output 116 [2024-11-28 02:14:04,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2024-11-28 02:14:06,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 84 [2024-11-28 02:14:06,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 02:14:06,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 02:14:06,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 02:14:06,282 INFO L349 Elim1Store]: treesize reduction 44, result has 53.7 percent of original size [2024-11-28 02:14:06,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 105 [2024-11-28 02:14:30,053 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:14:30,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 371 treesize of output 347 [2024-11-28 02:14:39,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 77 [2024-11-28 02:14:39,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 02:14:39,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 02:14:39,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 02:14:39,807 INFO L349 Elim1Store]: treesize reduction 40, result has 54.0 percent of original size [2024-11-28 02:14:39,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 102 [2024-11-28 02:15:37,839 WARN L286 SmtUtils]: Spent 13.77s on a formula simplification that was a NOOP. DAG size: 225 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 02:15:39,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 77 [2024-11-28 02:15:39,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 02:15:39,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 02:15:39,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 02:15:39,338 INFO L224 Elim1Store]: Index analysis took 158 ms [2024-11-28 02:15:39,427 INFO L349 Elim1Store]: treesize reduction 40, result has 54.0 percent of original size [2024-11-28 02:15:39,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 102