./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.01.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.01.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX --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 352e453d29e3ec1e2ba2c1191212dcec23d3b6a54e25ae049f0e79e2798ccd2e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:30:05,374 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:30:05,496 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:30:05,505 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:30:05,508 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:30:05,553 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:30:05,554 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:30:05,554 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:30:05,555 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:30:05,556 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:30:05,557 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:30:05,557 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:30:05,558 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:30:05,561 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:30:05,562 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:30:05,562 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:30:05,563 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:30:05,563 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:30:05,563 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:30:05,564 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:30:05,564 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:30:05,565 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:30:05,565 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:30:05,565 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:30:05,566 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:30:05,566 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:30:05,571 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:30:05,571 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:30:05,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:30:05,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:30:05,572 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:30:05,573 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:30:05,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:30:05,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:30:05,590 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:30:05,591 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:30:05,592 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:30:05,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:30:05,593 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:30:05,593 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:30:05,594 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:30:05,595 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:30:05,595 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 352e453d29e3ec1e2ba2c1191212dcec23d3b6a54e25ae049f0e79e2798ccd2e [2024-11-08 18:30:05,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:30:06,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:30:06,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:30:06,007 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:30:06,008 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:30:06,010 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.01.cil-1.c Unable to find full path for "g++" [2024-11-08 18:30:08,212 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:30:09,149 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:30:09,151 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/sv-benchmarks/c/combinations/Problem05_label46+token_ring.01.cil-1.c [2024-11-08 18:30:09,214 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/data/c4f55b544/5cdd4e374e054807afb8185bd8af2c4c/FLAG8c349ff34 [2024-11-08 18:30:09,234 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/data/c4f55b544/5cdd4e374e054807afb8185bd8af2c4c [2024-11-08 18:30:09,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:30:09,240 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:30:09,242 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:30:09,242 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:30:09,249 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:30:09,250 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:30:09" (1/1) ... [2024-11-08 18:30:09,252 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7afac6b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:09, skipping insertion in model container [2024-11-08 18:30:09,252 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:30:09" (1/1) ... [2024-11-08 18:30:09,636 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:30:12,557 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_afc034dd-ac42-44ab-b341-47f6d2baebbd/sv-benchmarks/c/combinations/Problem05_label46+token_ring.01.cil-1.c[382357,382370] [2024-11-08 18:30:12,611 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_afc034dd-ac42-44ab-b341-47f6d2baebbd/sv-benchmarks/c/combinations/Problem05_label46+token_ring.01.cil-1.c[383339,383352] [2024-11-08 18:30:12,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:30:12,824 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:30:14,335 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_afc034dd-ac42-44ab-b341-47f6d2baebbd/sv-benchmarks/c/combinations/Problem05_label46+token_ring.01.cil-1.c[382357,382370] [2024-11-08 18:30:14,340 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_afc034dd-ac42-44ab-b341-47f6d2baebbd/sv-benchmarks/c/combinations/Problem05_label46+token_ring.01.cil-1.c[383339,383352] [2024-11-08 18:30:14,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:30:14,450 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:30:14,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:14 WrapperNode [2024-11-08 18:30:14,452 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:30:14,453 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:30:14,454 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:30:14,454 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:30:14,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:14" (1/1) ... [2024-11-08 18:30:14,614 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:14" (1/1) ... [2024-11-08 18:30:15,190 INFO L138 Inliner]: procedures = 46, calls = 44, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 12568 [2024-11-08 18:30:15,191 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:30:15,192 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:30:15,192 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:30:15,192 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:30:15,208 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:14" (1/1) ... [2024-11-08 18:30:15,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:14" (1/1) ... [2024-11-08 18:30:15,276 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:14" (1/1) ... [2024-11-08 18:30:15,513 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 18:30:15,513 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:14" (1/1) ... [2024-11-08 18:30:15,514 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:14" (1/1) ... [2024-11-08 18:30:15,726 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:14" (1/1) ... [2024-11-08 18:30:15,779 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:14" (1/1) ... [2024-11-08 18:30:15,808 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:14" (1/1) ... [2024-11-08 18:30:15,828 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:14" (1/1) ... [2024-11-08 18:30:16,014 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:30:16,015 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:30:16,015 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:30:16,016 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:30:16,017 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:14" (1/1) ... [2024-11-08 18:30:16,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:30:16,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:30:16,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:30:16,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:30:16,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:30:16,180 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-08 18:30:16,181 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-08 18:30:16,181 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-08 18:30:16,181 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-08 18:30:16,181 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-08 18:30:16,181 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-08 18:30:16,181 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-08 18:30:16,182 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-08 18:30:16,182 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-08 18:30:16,182 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-08 18:30:16,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:30:16,182 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-08 18:30:16,182 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-08 18:30:16,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:30:16,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:30:16,486 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:30:16,492 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:30:29,399 INFO L? ?]: Removed 1689 outVars from TransFormulas that were not future-live. [2024-11-08 18:30:29,400 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:30:29,503 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:30:29,505 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-08 18:30:29,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:30:29 BoogieIcfgContainer [2024-11-08 18:30:29,506 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:30:29,510 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:30:29,512 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:30:29,517 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:30:29,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:30:09" (1/3) ... [2024-11-08 18:30:29,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191f041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:30:29, skipping insertion in model container [2024-11-08 18:30:29,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:14" (2/3) ... [2024-11-08 18:30:29,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191f041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:30:29, skipping insertion in model container [2024-11-08 18:30:29,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:30:29" (3/3) ... [2024-11-08 18:30:29,525 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.01.cil-1.c [2024-11-08 18:30:29,553 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:30:29,553 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:30:29,777 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:30:29,790 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;@65ac0009, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:30:29,791 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 18:30:29,816 INFO L276 IsEmpty]: Start isEmpty. Operand has 2292 states, 2268 states have (on average 1.8580246913580247) internal successors, (4214), 2271 states have internal predecessors, (4214), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-08 18:30:29,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-08 18:30:29,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:30:29,842 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:30:29,843 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:30:29,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:29,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1669505037, now seen corresponding path program 1 times [2024-11-08 18:30:29,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:29,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426700538] [2024-11-08 18:30:29,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:29,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:30,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:30:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:30,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:30:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:30,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:30:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:30,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:30:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:30,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:30:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:30,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:30:30,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:30,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426700538] [2024-11-08 18:30:30,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426700538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:30,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:30:30,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:30:30,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96192763] [2024-11-08 18:30:30,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:30,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:30:30,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:30,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:30:30,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:30:30,764 INFO L87 Difference]: Start difference. First operand has 2292 states, 2268 states have (on average 1.8580246913580247) internal successors, (4214), 2271 states have internal predecessors, (4214), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:30:32,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:30:32,241 INFO L93 Difference]: Finished difference Result 4711 states and 8684 transitions. [2024-11-08 18:30:32,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:30:32,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2024-11-08 18:30:32,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:30:32,281 INFO L225 Difference]: With dead ends: 4711 [2024-11-08 18:30:32,281 INFO L226 Difference]: Without dead ends: 2358 [2024-11-08 18:30:32,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:30:32,304 INFO L432 NwaCegarLoop]: 4124 mSDtfsCounter, 4323 mSDsluCounter, 12350 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4331 SdHoareTripleChecker+Valid, 16474 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:30:32,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4331 Valid, 16474 Invalid, 482 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [64 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 18:30:32,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2358 states. [2024-11-08 18:30:32,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2358 to 2317. [2024-11-08 18:30:32,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2317 states, 2277 states have (on average 1.8361879666227492) internal successors, (4181), 2280 states have internal predecessors, (4181), 25 states have call successors, (25), 12 states have call predecessors, (25), 13 states have return successors, (28), 25 states have call predecessors, (28), 25 states have call successors, (28) [2024-11-08 18:30:32,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2317 states to 2317 states and 4234 transitions. [2024-11-08 18:30:32,567 INFO L78 Accepts]: Start accepts. Automaton has 2317 states and 4234 transitions. Word has length 57 [2024-11-08 18:30:32,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:30:32,569 INFO L471 AbstractCegarLoop]: Abstraction has 2317 states and 4234 transitions. [2024-11-08 18:30:32,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:30:32,570 INFO L276 IsEmpty]: Start isEmpty. Operand 2317 states and 4234 transitions. [2024-11-08 18:30:32,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-08 18:30:32,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:30:32,576 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:30:32,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:30:32,577 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:30:32,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:32,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1713510263, now seen corresponding path program 1 times [2024-11-08 18:30:32,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:32,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480226254] [2024-11-08 18:30:32,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:32,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:32,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:30:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:32,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:30:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:32,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:30:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:32,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:30:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:33,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:30:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:33,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:30:33,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:33,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480226254] [2024-11-08 18:30:33,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480226254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:33,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:30:33,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:30:33,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429669086] [2024-11-08 18:30:33,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:33,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:30:33,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:33,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:30:33,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:30:33,022 INFO L87 Difference]: Start difference. First operand 2317 states and 4234 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:30:34,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:30:34,244 INFO L93 Difference]: Finished difference Result 2655 states and 4714 transitions. [2024-11-08 18:30:34,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:30:34,245 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2024-11-08 18:30:34,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:30:34,264 INFO L225 Difference]: With dead ends: 2655 [2024-11-08 18:30:34,265 INFO L226 Difference]: Without dead ends: 2468 [2024-11-08 18:30:34,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 18:30:34,270 INFO L432 NwaCegarLoop]: 4118 mSDtfsCounter, 4245 mSDsluCounter, 16317 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4253 SdHoareTripleChecker+Valid, 20435 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:30:34,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4253 Valid, 20435 Invalid, 737 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:30:34,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2024-11-08 18:30:34,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 2404. [2024-11-08 18:30:34,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2404 states, 2347 states have (on average 1.8227524499360885) internal successors, (4278), 2351 states have internal predecessors, (4278), 35 states have call successors, (35), 18 states have call predecessors, (35), 20 states have return successors, (40), 36 states have call predecessors, (40), 35 states have call successors, (40) [2024-11-08 18:30:34,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2404 states to 2404 states and 4353 transitions. [2024-11-08 18:30:34,532 INFO L78 Accepts]: Start accepts. Automaton has 2404 states and 4353 transitions. Word has length 57 [2024-11-08 18:30:34,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:30:34,533 INFO L471 AbstractCegarLoop]: Abstraction has 2404 states and 4353 transitions. [2024-11-08 18:30:34,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:30:34,534 INFO L276 IsEmpty]: Start isEmpty. Operand 2404 states and 4353 transitions. [2024-11-08 18:30:34,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-08 18:30:34,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:30:34,538 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:30:34,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:30:34,539 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:30:34,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:34,540 INFO L85 PathProgramCache]: Analyzing trace with hash -335877579, now seen corresponding path program 1 times [2024-11-08 18:30:34,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:34,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852638270] [2024-11-08 18:30:34,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:34,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:34,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:30:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:34,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:30:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:34,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:30:34,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:34,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:30:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:34,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:30:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:34,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:30:34,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:34,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852638270] [2024-11-08 18:30:34,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852638270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:34,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:30:34,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:30:34,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087088822] [2024-11-08 18:30:34,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:34,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:30:34,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:34,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:30:34,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:30:34,757 INFO L87 Difference]: Start difference. First operand 2404 states and 4353 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:30:35,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:30:35,756 INFO L93 Difference]: Finished difference Result 2997 states and 5187 transitions. [2024-11-08 18:30:35,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:30:35,757 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2024-11-08 18:30:35,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:30:35,770 INFO L225 Difference]: With dead ends: 2997 [2024-11-08 18:30:35,770 INFO L226 Difference]: Without dead ends: 2723 [2024-11-08 18:30:35,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:30:35,776 INFO L432 NwaCegarLoop]: 4114 mSDtfsCounter, 4300 mSDsluCounter, 16309 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4310 SdHoareTripleChecker+Valid, 20423 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:30:35,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4310 Valid, 20423 Invalid, 731 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [44 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:30:35,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2024-11-08 18:30:35,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 2573. [2024-11-08 18:30:35,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2573 states, 2484 states have (on average 1.7991143317230274) internal successors, (4469), 2490 states have internal predecessors, (4469), 53 states have call successors, (53), 30 states have call predecessors, (53), 34 states have return successors, (66), 56 states have call predecessors, (66), 53 states have call successors, (66) [2024-11-08 18:30:35,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 4588 transitions. [2024-11-08 18:30:35,884 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 4588 transitions. Word has length 57 [2024-11-08 18:30:35,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:30:35,884 INFO L471 AbstractCegarLoop]: Abstraction has 2573 states and 4588 transitions. [2024-11-08 18:30:35,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:30:35,885 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 4588 transitions. [2024-11-08 18:30:35,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-08 18:30:35,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:30:35,891 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:30:35,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:30:35,891 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:30:35,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:35,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1233270857, now seen corresponding path program 1 times [2024-11-08 18:30:35,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:35,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148967769] [2024-11-08 18:30:35,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:35,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:35,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:30:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:35,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:30:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:36,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:30:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:36,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:30:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:36,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:30:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:36,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:30:36,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:36,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148967769] [2024-11-08 18:30:36,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148967769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:36,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:30:36,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:30:36,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911802239] [2024-11-08 18:30:36,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:36,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:30:36,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:36,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:30:36,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:30:36,049 INFO L87 Difference]: Start difference. First operand 2573 states and 4588 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:30:37,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:30:37,333 INFO L93 Difference]: Finished difference Result 3531 states and 5930 transitions. [2024-11-08 18:30:37,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:30:37,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2024-11-08 18:30:37,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:30:37,350 INFO L225 Difference]: With dead ends: 3531 [2024-11-08 18:30:37,350 INFO L226 Difference]: Without dead ends: 3088 [2024-11-08 18:30:37,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:30:37,355 INFO L432 NwaCegarLoop]: 4102 mSDtfsCounter, 4240 mSDsluCounter, 16291 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4247 SdHoareTripleChecker+Valid, 20393 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:30:37,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4247 Valid, 20393 Invalid, 766 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [49 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 18:30:37,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3088 states. [2024-11-08 18:30:37,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3088 to 2880. [2024-11-08 18:30:37,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2880 states, 2733 states have (on average 1.761068422978412) internal successors, (4813), 2743 states have internal predecessors, (4813), 85 states have call successors, (85), 52 states have call predecessors, (85), 60 states have return successors, (120), 92 states have call predecessors, (120), 85 states have call successors, (120) [2024-11-08 18:30:37,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 5018 transitions. [2024-11-08 18:30:37,573 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 5018 transitions. Word has length 57 [2024-11-08 18:30:37,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:30:37,574 INFO L471 AbstractCegarLoop]: Abstraction has 2880 states and 5018 transitions. [2024-11-08 18:30:37,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:30:37,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 5018 transitions. [2024-11-08 18:30:37,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-08 18:30:37,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:30:37,579 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:30:37,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:30:37,580 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:30:37,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:37,581 INFO L85 PathProgramCache]: Analyzing trace with hash -985124363, now seen corresponding path program 1 times [2024-11-08 18:30:37,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:37,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768877443] [2024-11-08 18:30:37,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:37,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:37,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:37,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:30:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:37,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:30:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:37,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:30:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:37,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:30:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:37,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:30:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:37,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:30:37,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:37,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768877443] [2024-11-08 18:30:37,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768877443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:37,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:30:37,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:30:37,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307460058] [2024-11-08 18:30:37,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:37,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:30:37,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:37,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:30:37,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:30:37,737 INFO L87 Difference]: Start difference. First operand 2880 states and 5018 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:30:38,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:30:38,882 INFO L93 Difference]: Finished difference Result 4245 states and 6940 transitions. [2024-11-08 18:30:38,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:30:38,883 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2024-11-08 18:30:38,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:30:38,901 INFO L225 Difference]: With dead ends: 4245 [2024-11-08 18:30:38,902 INFO L226 Difference]: Without dead ends: 3496 [2024-11-08 18:30:38,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:30:38,909 INFO L432 NwaCegarLoop]: 4134 mSDtfsCounter, 4360 mSDsluCounter, 12168 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4383 SdHoareTripleChecker+Valid, 16302 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:30:38,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4383 Valid, 16302 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:30:38,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3496 states. [2024-11-08 18:30:39,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3496 to 3291. [2024-11-08 18:30:39,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3291 states, 3061 states have (on average 1.714799085266253) internal successors, (5249), 3080 states have internal predecessors, (5249), 134 states have call successors, (134), 82 states have call predecessors, (134), 94 states have return successors, (179), 136 states have call predecessors, (179), 134 states have call successors, (179) [2024-11-08 18:30:39,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3291 states to 3291 states and 5562 transitions. [2024-11-08 18:30:39,097 INFO L78 Accepts]: Start accepts. Automaton has 3291 states and 5562 transitions. Word has length 57 [2024-11-08 18:30:39,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:30:39,097 INFO L471 AbstractCegarLoop]: Abstraction has 3291 states and 5562 transitions. [2024-11-08 18:30:39,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:30:39,098 INFO L276 IsEmpty]: Start isEmpty. Operand 3291 states and 5562 transitions. [2024-11-08 18:30:39,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 18:30:39,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:30:39,102 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:30:39,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:30:39,103 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:30:39,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:39,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1783138506, now seen corresponding path program 1 times [2024-11-08 18:30:39,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:39,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63795538] [2024-11-08 18:30:39,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:39,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:39,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:30:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:39,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:30:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:39,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:30:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:39,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:30:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:39,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:30:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:39,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:30:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:39,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:30:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:39,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 18:30:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:39,284 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 18:30:39,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:39,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63795538] [2024-11-08 18:30:39,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63795538] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:30:39,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961581978] [2024-11-08 18:30:39,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:39,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:39,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:30:39,289 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:30:39,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:30:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:39,415 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:30:39,421 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:30:39,460 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 18:30:39,460 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:30:39,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961581978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:39,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:30:39,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-08 18:30:39,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532927657] [2024-11-08 18:30:39,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:39,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:30:39,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:39,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:30:39,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:30:39,463 INFO L87 Difference]: Start difference. First operand 3291 states and 5562 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 18:30:39,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:30:39,754 INFO L93 Difference]: Finished difference Result 5517 states and 8683 transitions. [2024-11-08 18:30:39,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:30:39,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 93 [2024-11-08 18:30:39,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:30:39,774 INFO L225 Difference]: With dead ends: 5517 [2024-11-08 18:30:39,775 INFO L226 Difference]: Without dead ends: 4358 [2024-11-08 18:30:39,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:30:39,785 INFO L432 NwaCegarLoop]: 4221 mSDtfsCounter, 115 mSDsluCounter, 4098 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 8319 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:30:39,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 8319 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:30:39,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4358 states. [2024-11-08 18:30:39,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4358 to 4358. [2024-11-08 18:30:40,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4358 states, 3919 states have (on average 1.6340903291656035) internal successors, (6404), 3951 states have internal predecessors, (6404), 253 states have call successors, (253), 160 states have call predecessors, (253), 184 states have return successors, (376), 262 states have call predecessors, (376), 253 states have call successors, (376) [2024-11-08 18:30:40,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4358 states to 4358 states and 7033 transitions. [2024-11-08 18:30:40,030 INFO L78 Accepts]: Start accepts. Automaton has 4358 states and 7033 transitions. Word has length 93 [2024-11-08 18:30:40,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:30:40,033 INFO L471 AbstractCegarLoop]: Abstraction has 4358 states and 7033 transitions. [2024-11-08 18:30:40,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 18:30:40,034 INFO L276 IsEmpty]: Start isEmpty. Operand 4358 states and 7033 transitions. [2024-11-08 18:30:40,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-08 18:30:40,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:30:40,051 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:30:40,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 18:30:40,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:40,252 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:30:40,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:40,253 INFO L85 PathProgramCache]: Analyzing trace with hash 2085264922, now seen corresponding path program 1 times [2024-11-08 18:30:40,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:40,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232299461] [2024-11-08 18:30:40,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:40,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:40,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:30:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:40,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:30:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:40,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:30:40,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:40,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:30:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:40,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:30:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:40,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:30:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:40,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:30:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:40,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 18:30:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:40,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:30:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:40,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 18:30:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:40,426 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-08 18:30:40,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:40,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232299461] [2024-11-08 18:30:40,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232299461] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:30:40,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135695553] [2024-11-08 18:30:40,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:40,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:40,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:30:40,429 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:30:40,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:30:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:40,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:30:40,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:30:40,785 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 18:30:40,786 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:30:40,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135695553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:40,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:30:40,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-08 18:30:40,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616161201] [2024-11-08 18:30:40,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:40,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:30:40,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:40,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:30:40,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:30:40,792 INFO L87 Difference]: Start difference. First operand 4358 states and 7033 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 18:30:41,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:30:41,111 INFO L93 Difference]: Finished difference Result 8668 states and 12996 transitions. [2024-11-08 18:30:41,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:30:41,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 120 [2024-11-08 18:30:41,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:30:41,154 INFO L225 Difference]: With dead ends: 8668 [2024-11-08 18:30:41,154 INFO L226 Difference]: Without dead ends: 6445 [2024-11-08 18:30:41,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:30:41,169 INFO L432 NwaCegarLoop]: 4106 mSDtfsCounter, 4027 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4027 SdHoareTripleChecker+Valid, 4228 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:30:41,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4027 Valid, 4228 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:30:41,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6445 states. [2024-11-08 18:30:41,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6445 to 6387. [2024-11-08 18:30:41,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6387 states, 5554 states have (on average 1.5482535109830753) internal successors, (8599), 5615 states have internal predecessors, (8599), 473 states have call successors, (473), 310 states have call predecessors, (473), 358 states have return successors, (688), 477 states have call predecessors, (688), 473 states have call successors, (688) [2024-11-08 18:30:41,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6387 states to 6387 states and 9760 transitions. [2024-11-08 18:30:41,562 INFO L78 Accepts]: Start accepts. Automaton has 6387 states and 9760 transitions. Word has length 120 [2024-11-08 18:30:41,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:30:41,563 INFO L471 AbstractCegarLoop]: Abstraction has 6387 states and 9760 transitions. [2024-11-08 18:30:41,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 18:30:41,563 INFO L276 IsEmpty]: Start isEmpty. Operand 6387 states and 9760 transitions. [2024-11-08 18:30:41,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 18:30:41,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:30:41,574 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:30:41,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:30:41,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:41,779 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:30:41,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:41,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1842807352, now seen corresponding path program 1 times [2024-11-08 18:30:41,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:41,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047971143] [2024-11-08 18:30:41,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:41,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:41,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:30:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:41,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:30:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:41,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:30:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:41,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:30:41,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:41,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:30:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:41,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 18:30:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:41,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 18:30:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:41,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:30:41,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:41,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 18:30:41,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:41,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:30:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:41,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-08 18:30:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:41,945 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-08 18:30:41,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:41,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047971143] [2024-11-08 18:30:41,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047971143] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:30:41,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312182762] [2024-11-08 18:30:41,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:41,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:41,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:30:41,950 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:30:41,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:30:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:42,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:30:42,068 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:30:42,122 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-08 18:30:42,123 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:30:42,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312182762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:42,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:30:42,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-08 18:30:42,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543429872] [2024-11-08 18:30:42,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:42,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:30:42,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:42,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:30:42,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:30:42,125 INFO L87 Difference]: Start difference. First operand 6387 states and 9760 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 18:30:42,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:30:42,542 INFO L93 Difference]: Finished difference Result 9685 states and 14265 transitions. [2024-11-08 18:30:42,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:30:42,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 137 [2024-11-08 18:30:42,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:30:42,592 INFO L225 Difference]: With dead ends: 9685 [2024-11-08 18:30:42,592 INFO L226 Difference]: Without dead ends: 6715 [2024-11-08 18:30:42,603 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:30:42,603 INFO L432 NwaCegarLoop]: 4125 mSDtfsCounter, 4059 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4059 SdHoareTripleChecker+Valid, 4255 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:30:42,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4059 Valid, 4255 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:30:42,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6715 states. [2024-11-08 18:30:42,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6715 to 6677. [2024-11-08 18:30:43,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6677 states, 5812 states have (on average 1.5232278045423262) internal successors, (8853), 5873 states have internal predecessors, (8853), 479 states have call successors, (479), 336 states have call predecessors, (479), 384 states have return successors, (720), 483 states have call predecessors, (720), 479 states have call successors, (720) [2024-11-08 18:30:43,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6677 states to 6677 states and 10052 transitions. [2024-11-08 18:30:43,029 INFO L78 Accepts]: Start accepts. Automaton has 6677 states and 10052 transitions. Word has length 137 [2024-11-08 18:30:43,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:30:43,030 INFO L471 AbstractCegarLoop]: Abstraction has 6677 states and 10052 transitions. [2024-11-08 18:30:43,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 18:30:43,031 INFO L276 IsEmpty]: Start isEmpty. Operand 6677 states and 10052 transitions. [2024-11-08 18:30:43,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-08 18:30:43,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:30:43,046 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:30:43,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 18:30:43,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:43,247 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:30:43,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:43,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1716448699, now seen corresponding path program 1 times [2024-11-08 18:30:43,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:43,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375699090] [2024-11-08 18:30:43,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:43,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:43,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:30:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:43,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:30:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:43,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:30:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:43,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:30:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:43,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:30:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:43,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:30:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:43,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:30:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:43,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 18:30:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:43,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 18:30:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:43,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:30:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:43,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-08 18:30:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:43,402 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-08 18:30:43,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:43,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375699090] [2024-11-08 18:30:43,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375699090] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:30:43,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348814807] [2024-11-08 18:30:43,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:43,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:43,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:30:43,405 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:30:43,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:30:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:43,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:30:43,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:30:43,567 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-08 18:30:43,570 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:30:43,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348814807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:43,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:30:43,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-08 18:30:43,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882500999] [2024-11-08 18:30:43,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:43,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:30:43,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:43,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:30:43,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:30:43,572 INFO L87 Difference]: Start difference. First operand 6677 states and 10052 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 18:30:44,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:30:44,409 INFO L93 Difference]: Finished difference Result 15401 states and 21894 transitions. [2024-11-08 18:30:44,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:30:44,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 138 [2024-11-08 18:30:44,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:30:44,468 INFO L225 Difference]: With dead ends: 15401 [2024-11-08 18:30:44,469 INFO L226 Difference]: Without dead ends: 10861 [2024-11-08 18:30:44,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:30:44,487 INFO L432 NwaCegarLoop]: 4217 mSDtfsCounter, 115 mSDsluCounter, 4097 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 8314 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:30:44,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 8314 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:30:44,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10861 states. [2024-11-08 18:30:45,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10861 to 10847. [2024-11-08 18:30:45,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10847 states, 9168 states have (on average 1.43815445026178) internal successors, (13185), 9289 states have internal predecessors, (13185), 925 states have call successors, (925), 656 states have call predecessors, (925), 752 states have return successors, (1550), 933 states have call predecessors, (1550), 925 states have call successors, (1550) [2024-11-08 18:30:45,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10847 states to 10847 states and 15660 transitions. [2024-11-08 18:30:45,611 INFO L78 Accepts]: Start accepts. Automaton has 10847 states and 15660 transitions. Word has length 138 [2024-11-08 18:30:45,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:30:45,611 INFO L471 AbstractCegarLoop]: Abstraction has 10847 states and 15660 transitions. [2024-11-08 18:30:45,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 18:30:45,612 INFO L276 IsEmpty]: Start isEmpty. Operand 10847 states and 15660 transitions. [2024-11-08 18:30:45,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-08 18:30:45,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:30:45,639 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:30:45,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 18:30:45,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:45,844 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:30:45,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:45,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1584504954, now seen corresponding path program 1 times [2024-11-08 18:30:45,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:45,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164905190] [2024-11-08 18:30:45,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:45,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:45,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:45,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:30:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:45,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:30:45,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:45,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:30:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:46,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:30:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:46,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:30:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:46,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:30:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:46,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 18:30:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:46,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:30:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:46,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:30:46,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:46,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:30:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:46,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 18:30:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:46,068 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-08 18:30:46,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:46,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164905190] [2024-11-08 18:30:46,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164905190] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:30:46,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442074017] [2024-11-08 18:30:46,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:46,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:46,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:30:46,073 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:30:46,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:30:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:46,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:30:46,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:30:46,271 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 18:30:46,271 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:30:46,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442074017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:46,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:30:46,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-08 18:30:46,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660865740] [2024-11-08 18:30:46,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:46,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:30:46,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:46,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:30:46,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:30:46,275 INFO L87 Difference]: Start difference. First operand 10847 states and 15660 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 18:30:46,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:30:46,977 INFO L93 Difference]: Finished difference Result 15375 states and 22056 transitions. [2024-11-08 18:30:46,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:30:46,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 139 [2024-11-08 18:30:46,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:30:47,024 INFO L225 Difference]: With dead ends: 15375 [2024-11-08 18:30:47,025 INFO L226 Difference]: Without dead ends: 10881 [2024-11-08 18:30:47,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:30:47,041 INFO L432 NwaCegarLoop]: 4184 mSDtfsCounter, 100 mSDsluCounter, 4089 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 8273 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:30:47,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 8273 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:30:47,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10881 states. [2024-11-08 18:30:47,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10881 to 10823. [2024-11-08 18:30:47,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10823 states, 9144 states have (on average 1.4248687664041995) internal successors, (13029), 9265 states have internal predecessors, (13029), 925 states have call successors, (925), 656 states have call predecessors, (925), 752 states have return successors, (1550), 933 states have call predecessors, (1550), 925 states have call successors, (1550) [2024-11-08 18:30:47,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10823 states to 10823 states and 15504 transitions. [2024-11-08 18:30:47,800 INFO L78 Accepts]: Start accepts. Automaton has 10823 states and 15504 transitions. Word has length 139 [2024-11-08 18:30:47,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:30:47,801 INFO L471 AbstractCegarLoop]: Abstraction has 10823 states and 15504 transitions. [2024-11-08 18:30:47,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 18:30:47,802 INFO L276 IsEmpty]: Start isEmpty. Operand 10823 states and 15504 transitions. [2024-11-08 18:30:47,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-08 18:30:47,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:30:47,825 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:30:47,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 18:30:48,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:48,027 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:30:48,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:48,029 INFO L85 PathProgramCache]: Analyzing trace with hash 495298372, now seen corresponding path program 1 times [2024-11-08 18:30:48,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:48,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216654276] [2024-11-08 18:30:48,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:48,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:48,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:30:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:48,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:30:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:48,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:30:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:48,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:30:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:48,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:30:48,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:48,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:30:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:48,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 18:30:48,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:48,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:30:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:48,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:30:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:48,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:30:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:48,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 18:30:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:48,193 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-08 18:30:48,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:48,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216654276] [2024-11-08 18:30:48,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216654276] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:30:48,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883183915] [2024-11-08 18:30:48,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:48,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:48,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:30:48,196 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:30:48,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 18:30:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:48,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:30:48,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:30:48,532 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 18:30:48,533 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:30:48,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883183915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:48,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:30:48,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-08 18:30:48,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894741240] [2024-11-08 18:30:48,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:48,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:30:48,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:48,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:30:48,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:30:48,538 INFO L87 Difference]: Start difference. First operand 10823 states and 15504 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:30:49,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:30:49,110 INFO L93 Difference]: Finished difference Result 17233 states and 24276 transitions. [2024-11-08 18:30:49,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:30:49,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 139 [2024-11-08 18:30:49,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:30:49,155 INFO L225 Difference]: With dead ends: 17233 [2024-11-08 18:30:49,156 INFO L226 Difference]: Without dead ends: 9603 [2024-11-08 18:30:49,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:30:49,181 INFO L432 NwaCegarLoop]: 4102 mSDtfsCounter, 4078 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4078 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:30:49,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4078 Valid, 4126 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:30:49,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9603 states. [2024-11-08 18:30:49,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9603 to 9155. [2024-11-08 18:30:49,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9155 states, 7802 states have (on average 1.4097667264803897) internal successors, (10999), 7891 states have internal predecessors, (10999), 753 states have call successors, (753), 534 states have call predecessors, (753), 598 states have return successors, (1098), 745 states have call predecessors, (1098), 753 states have call successors, (1098) [2024-11-08 18:30:49,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9155 states to 9155 states and 12850 transitions. [2024-11-08 18:30:49,719 INFO L78 Accepts]: Start accepts. Automaton has 9155 states and 12850 transitions. Word has length 139 [2024-11-08 18:30:49,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:30:49,720 INFO L471 AbstractCegarLoop]: Abstraction has 9155 states and 12850 transitions. [2024-11-08 18:30:49,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:30:49,720 INFO L276 IsEmpty]: Start isEmpty. Operand 9155 states and 12850 transitions. [2024-11-08 18:30:49,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 18:30:49,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:30:49,738 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:30:49,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 18:30:49,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:49,938 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:30:49,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:49,939 INFO L85 PathProgramCache]: Analyzing trace with hash -352207721, now seen corresponding path program 1 times [2024-11-08 18:30:49,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:49,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600404770] [2024-11-08 18:30:49,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:49,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:49,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:50,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:30:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:50,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:30:50,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:50,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:30:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:50,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:30:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:50,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:30:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:50,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:30:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:50,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 18:30:50,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:50,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:30:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:50,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:30:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:50,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:30:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:50,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 18:30:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:50,118 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-08 18:30:50,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:50,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600404770] [2024-11-08 18:30:50,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600404770] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:30:50,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628088486] [2024-11-08 18:30:50,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:50,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:50,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:30:50,125 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:30:50,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 18:30:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:50,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:30:50,253 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:30:50,379 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-08 18:30:50,380 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:30:50,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628088486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:50,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:30:50,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-08 18:30:50,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476435702] [2024-11-08 18:30:50,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:50,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:30:50,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:50,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:30:50,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:30:50,385 INFO L87 Difference]: Start difference. First operand 9155 states and 12850 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 18:30:51,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:30:51,224 INFO L93 Difference]: Finished difference Result 11893 states and 16439 transitions. [2024-11-08 18:30:51,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:30:51,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 140 [2024-11-08 18:30:51,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:30:51,257 INFO L225 Difference]: With dead ends: 11893 [2024-11-08 18:30:51,257 INFO L226 Difference]: Without dead ends: 7339 [2024-11-08 18:30:51,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:30:51,272 INFO L432 NwaCegarLoop]: 4049 mSDtfsCounter, 4096 mSDsluCounter, 8057 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4104 SdHoareTripleChecker+Valid, 12106 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:30:51,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4104 Valid, 12106 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:30:51,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7339 states. [2024-11-08 18:30:51,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7339 to 7315. [2024-11-08 18:30:51,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7315 states, 6320 states have (on average 1.428006329113924) internal successors, (9025), 6373 states have internal predecessors, (9025), 565 states have call successors, (565), 396 states have call predecessors, (565), 428 states have return successors, (766), 553 states have call predecessors, (766), 565 states have call successors, (766) [2024-11-08 18:30:51,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7315 states to 7315 states and 10356 transitions. [2024-11-08 18:30:51,828 INFO L78 Accepts]: Start accepts. Automaton has 7315 states and 10356 transitions. Word has length 140 [2024-11-08 18:30:51,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:30:51,829 INFO L471 AbstractCegarLoop]: Abstraction has 7315 states and 10356 transitions. [2024-11-08 18:30:51,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 18:30:51,830 INFO L276 IsEmpty]: Start isEmpty. Operand 7315 states and 10356 transitions. [2024-11-08 18:30:51,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 18:30:51,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:30:51,838 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:30:51,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 18:30:52,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:52,042 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:30:52,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:52,043 INFO L85 PathProgramCache]: Analyzing trace with hash -233766247, now seen corresponding path program 1 times [2024-11-08 18:30:52,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:52,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358603739] [2024-11-08 18:30:52,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:52,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:52,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:30:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:52,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:30:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:52,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:30:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:52,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:30:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:52,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:30:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:52,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:30:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:52,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 18:30:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:52,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:30:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:52,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:30:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:52,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:30:52,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:52,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 18:30:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:52,247 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-08 18:30:52,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:52,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358603739] [2024-11-08 18:30:52,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358603739] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:30:52,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117863437] [2024-11-08 18:30:52,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:52,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:52,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:30:52,252 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:30:52,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 18:30:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:52,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:30:52,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:30:52,519 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-08 18:30:52,519 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:30:52,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117863437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:52,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:30:52,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-08 18:30:52,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116365099] [2024-11-08 18:30:52,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:52,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:30:52,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:52,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:30:52,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:30:52,522 INFO L87 Difference]: Start difference. First operand 7315 states and 10356 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 18:30:53,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:30:53,474 INFO L93 Difference]: Finished difference Result 11545 states and 15786 transitions. [2024-11-08 18:30:53,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:30:53,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 140 [2024-11-08 18:30:53,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:30:53,511 INFO L225 Difference]: With dead ends: 11545 [2024-11-08 18:30:53,512 INFO L226 Difference]: Without dead ends: 6953 [2024-11-08 18:30:53,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:30:53,530 INFO L432 NwaCegarLoop]: 4047 mSDtfsCounter, 4134 mSDsluCounter, 8052 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4143 SdHoareTripleChecker+Valid, 12099 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:30:53,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4143 Valid, 12099 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:30:53,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6953 states. [2024-11-08 18:30:54,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6953 to 5221. [2024-11-08 18:30:54,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 4646 states have (on average 1.4829961256995265) internal successors, (6890), 4675 states have internal predecessors, (6890), 329 states have call successors, (329), 228 states have call predecessors, (329), 244 states have return successors, (439), 321 states have call predecessors, (439), 329 states have call successors, (439) [2024-11-08 18:30:54,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 7658 transitions. [2024-11-08 18:30:54,127 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 7658 transitions. Word has length 140 [2024-11-08 18:30:54,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:30:54,128 INFO L471 AbstractCegarLoop]: Abstraction has 5221 states and 7658 transitions. [2024-11-08 18:30:54,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 18:30:54,128 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 7658 transitions. [2024-11-08 18:30:54,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 18:30:54,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:30:54,139 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:30:54,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 18:30:54,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:54,343 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:30:54,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:54,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1155527767, now seen corresponding path program 1 times [2024-11-08 18:30:54,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:54,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152631654] [2024-11-08 18:30:54,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:54,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:54,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:30:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:54,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:30:54,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:54,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:30:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:54,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:30:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:54,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:30:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:54,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:30:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:54,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 18:30:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:54,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:30:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:54,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:30:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:54,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:30:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:54,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 18:30:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:54,565 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-08 18:30:54,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:54,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152631654] [2024-11-08 18:30:54,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152631654] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:30:54,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607058778] [2024-11-08 18:30:54,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:54,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:54,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:30:54,569 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:30:54,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 18:30:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:54,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:30:54,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:30:54,890 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 57 proven. 16 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:30:54,891 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:30:55,036 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-08 18:30:55,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607058778] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:30:55,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:30:55,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 9 [2024-11-08 18:30:55,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285814881] [2024-11-08 18:30:55,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:55,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:30:55,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:55,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:30:55,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:30:55,040 INFO L87 Difference]: Start difference. First operand 5221 states and 7658 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 18:30:55,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:30:55,916 INFO L93 Difference]: Finished difference Result 9241 states and 12438 transitions. [2024-11-08 18:30:55,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:30:55,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 140 [2024-11-08 18:30:55,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:30:55,954 INFO L225 Difference]: With dead ends: 9241 [2024-11-08 18:30:55,954 INFO L226 Difference]: Without dead ends: 7787 [2024-11-08 18:30:55,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:30:55,963 INFO L432 NwaCegarLoop]: 4196 mSDtfsCounter, 4173 mSDsluCounter, 4150 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4173 SdHoareTripleChecker+Valid, 8346 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:30:55,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4173 Valid, 8346 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:30:55,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7787 states. [2024-11-08 18:30:56,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7787 to 6486. [2024-11-08 18:30:56,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6486 states, 5687 states have (on average 1.4241251978195886) internal successors, (8099), 5724 states have internal predecessors, (8099), 457 states have call successors, (457), 316 states have call predecessors, (457), 340 states have return successors, (609), 449 states have call predecessors, (609), 457 states have call successors, (609) [2024-11-08 18:30:56,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6486 states to 6486 states and 9165 transitions. [2024-11-08 18:30:56,576 INFO L78 Accepts]: Start accepts. Automaton has 6486 states and 9165 transitions. Word has length 140 [2024-11-08 18:30:56,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:30:56,577 INFO L471 AbstractCegarLoop]: Abstraction has 6486 states and 9165 transitions. [2024-11-08 18:30:56,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 18:30:56,578 INFO L276 IsEmpty]: Start isEmpty. Operand 6486 states and 9165 transitions. [2024-11-08 18:30:56,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-08 18:30:56,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:30:56,588 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:30:56,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-08 18:30:56,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-08 18:30:56,790 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:30:56,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:56,791 INFO L85 PathProgramCache]: Analyzing trace with hash 164739336, now seen corresponding path program 1 times [2024-11-08 18:30:56,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:56,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605180510] [2024-11-08 18:30:56,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:56,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:56,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:30:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:56,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:30:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:56,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:30:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:56,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:30:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:56,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:30:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:56,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:30:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:56,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:30:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:56,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 18:30:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:56,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:30:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:56,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 18:30:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:56,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 18:30:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:56,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 18:30:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:56,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 18:30:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:56,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 18:30:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:56,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-08 18:30:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:56,991 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-08 18:30:56,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:56,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605180510] [2024-11-08 18:30:56,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605180510] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:30:56,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186477884] [2024-11-08 18:30:56,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:56,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:56,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:30:56,997 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:30:57,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 18:30:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:57,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:30:57,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:30:57,189 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-08 18:30:57,191 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:30:57,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186477884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:57,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:30:57,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-08 18:30:57,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120479706] [2024-11-08 18:30:57,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:57,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:30:57,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:57,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:30:57,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:30:57,196 INFO L87 Difference]: Start difference. First operand 6486 states and 9165 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-08 18:30:57,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:30:57,967 INFO L93 Difference]: Finished difference Result 10163 states and 13570 transitions. [2024-11-08 18:30:57,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:30:57,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 159 [2024-11-08 18:30:57,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:30:57,997 INFO L225 Difference]: With dead ends: 10163 [2024-11-08 18:30:57,998 INFO L226 Difference]: Without dead ends: 6573 [2024-11-08 18:30:58,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:30:58,008 INFO L432 NwaCegarLoop]: 4112 mSDtfsCounter, 4073 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4073 SdHoareTripleChecker+Valid, 4231 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:30:58,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4073 Valid, 4231 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:30:58,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6573 states. [2024-11-08 18:30:58,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6573 to 6486. [2024-11-08 18:30:58,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6486 states, 5687 states have (on average 1.4172674520836996) internal successors, (8060), 5724 states have internal predecessors, (8060), 457 states have call successors, (457), 316 states have call predecessors, (457), 340 states have return successors, (609), 449 states have call predecessors, (609), 457 states have call successors, (609) [2024-11-08 18:30:58,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6486 states to 6486 states and 9126 transitions. [2024-11-08 18:30:58,561 INFO L78 Accepts]: Start accepts. Automaton has 6486 states and 9126 transitions. Word has length 159 [2024-11-08 18:30:58,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:30:58,562 INFO L471 AbstractCegarLoop]: Abstraction has 6486 states and 9126 transitions. [2024-11-08 18:30:58,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-08 18:30:58,563 INFO L276 IsEmpty]: Start isEmpty. Operand 6486 states and 9126 transitions. [2024-11-08 18:30:58,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-08 18:30:58,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:30:58,571 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:30:58,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-08 18:30:58,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-08 18:30:58,776 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:30:58,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:58,777 INFO L85 PathProgramCache]: Analyzing trace with hash 197648776, now seen corresponding path program 1 times [2024-11-08 18:30:58,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:58,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965934461] [2024-11-08 18:30:58,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:58,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:58,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:30:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:58,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:30:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:58,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:30:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:58,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:30:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:58,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:30:58,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:58,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:30:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:58,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:30:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:58,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 18:30:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:58,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:30:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:58,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 18:30:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:58,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 18:30:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:58,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 18:30:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:58,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 18:30:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:58,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 18:30:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:58,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-08 18:30:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:58,915 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-08 18:30:58,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:58,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965934461] [2024-11-08 18:30:58,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965934461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:58,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:30:58,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:30:58,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569490760] [2024-11-08 18:30:58,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:58,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:30:58,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:58,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:30:58,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:30:58,919 INFO L87 Difference]: Start difference. First operand 6486 states and 9126 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 18:30:59,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:30:59,892 INFO L93 Difference]: Finished difference Result 10606 states and 13952 transitions. [2024-11-08 18:30:59,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:30:59,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 159 [2024-11-08 18:30:59,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:30:59,925 INFO L225 Difference]: With dead ends: 10606 [2024-11-08 18:30:59,926 INFO L226 Difference]: Without dead ends: 6255 [2024-11-08 18:30:59,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:30:59,938 INFO L432 NwaCegarLoop]: 4054 mSDtfsCounter, 211 mSDsluCounter, 11978 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 16032 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:30:59,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 16032 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:30:59,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6255 states. [2024-11-08 18:31:00,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6255 to 6037. [2024-11-08 18:31:00,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6037 states, 5339 states have (on average 1.435100206031092) internal successors, (7662), 5407 states have internal predecessors, (7662), 369 states have call successors, (369), 258 states have call predecessors, (369), 327 states have return successors, (541), 373 states have call predecessors, (541), 369 states have call successors, (541) [2024-11-08 18:31:00,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6037 states to 6037 states and 8572 transitions. [2024-11-08 18:31:00,462 INFO L78 Accepts]: Start accepts. Automaton has 6037 states and 8572 transitions. Word has length 159 [2024-11-08 18:31:00,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:00,472 INFO L471 AbstractCegarLoop]: Abstraction has 6037 states and 8572 transitions. [2024-11-08 18:31:00,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 18:31:00,477 INFO L276 IsEmpty]: Start isEmpty. Operand 6037 states and 8572 transitions. [2024-11-08 18:31:00,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-08 18:31:00,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:00,484 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:00,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 18:31:00,484 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:31:00,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:00,486 INFO L85 PathProgramCache]: Analyzing trace with hash 564567116, now seen corresponding path program 1 times [2024-11-08 18:31:00,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:31:00,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906964808] [2024-11-08 18:31:00,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:00,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:31:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:00,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:31:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:00,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:31:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:00,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:31:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:00,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:31:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:00,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:31:00,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:00,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:31:00,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:00,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:31:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:00,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:31:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:00,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 18:31:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:00,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:31:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:00,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 18:31:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:00,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 18:31:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:00,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-08 18:31:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:00,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 18:31:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:00,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 18:31:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:00,666 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-08 18:31:00,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:31:00,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906964808] [2024-11-08 18:31:00,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906964808] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:31:00,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529512371] [2024-11-08 18:31:00,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:00,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:00,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:31:00,669 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:31:00,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 18:31:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:00,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:31:00,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:31:00,874 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-08 18:31:00,874 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:31:00,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529512371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:00,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:31:00,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-08 18:31:00,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133794517] [2024-11-08 18:31:00,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:00,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:31:00,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:31:00,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:31:00,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:31:00,877 INFO L87 Difference]: Start difference. First operand 6037 states and 8572 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-08 18:31:01,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:01,331 INFO L93 Difference]: Finished difference Result 8596 states and 11770 transitions. [2024-11-08 18:31:01,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:31:01,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 161 [2024-11-08 18:31:01,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:01,357 INFO L225 Difference]: With dead ends: 8596 [2024-11-08 18:31:01,358 INFO L226 Difference]: Without dead ends: 5999 [2024-11-08 18:31:01,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:31:01,367 INFO L432 NwaCegarLoop]: 4192 mSDtfsCounter, 87 mSDsluCounter, 4080 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 8272 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:01,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 8272 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:31:01,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5999 states. [2024-11-08 18:31:01,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5999 to 5985. [2024-11-08 18:31:01,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5985 states, 5295 states have (on average 1.4273843248347498) internal successors, (7558), 5361 states have internal predecessors, (7558), 365 states have call successors, (365), 254 states have call predecessors, (365), 323 states have return successors, (537), 371 states have call predecessors, (537), 365 states have call successors, (537) [2024-11-08 18:31:01,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5985 states to 5985 states and 8460 transitions. [2024-11-08 18:31:01,964 INFO L78 Accepts]: Start accepts. Automaton has 5985 states and 8460 transitions. Word has length 161 [2024-11-08 18:31:01,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:01,965 INFO L471 AbstractCegarLoop]: Abstraction has 5985 states and 8460 transitions. [2024-11-08 18:31:01,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-08 18:31:01,965 INFO L276 IsEmpty]: Start isEmpty. Operand 5985 states and 8460 transitions. [2024-11-08 18:31:01,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-08 18:31:01,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:01,973 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:02,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-08 18:31:02,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-08 18:31:02,174 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:31:02,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:02,175 INFO L85 PathProgramCache]: Analyzing trace with hash -366000941, now seen corresponding path program 1 times [2024-11-08 18:31:02,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:31:02,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358494738] [2024-11-08 18:31:02,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:02,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:31:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:02,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:31:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:02,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:31:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:02,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:31:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:02,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:31:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:02,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:31:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:02,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:31:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:02,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:31:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:02,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:31:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:02,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 18:31:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:02,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:31:02,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:02,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 18:31:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:02,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-08 18:31:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:02,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 18:31:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:02,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-08 18:31:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:02,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 18:31:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:02,384 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-08 18:31:02,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:31:02,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358494738] [2024-11-08 18:31:02,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358494738] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:31:02,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847291509] [2024-11-08 18:31:02,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:02,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:02,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:31:02,387 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:31:02,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 18:31:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:02,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:31:02,560 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:31:02,640 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-08 18:31:02,642 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:31:02,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847291509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:02,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:31:02,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-08 18:31:02,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165162517] [2024-11-08 18:31:02,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:02,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:31:02,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:31:02,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:31:02,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:31:02,646 INFO L87 Difference]: Start difference. First operand 5985 states and 8460 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 18:31:03,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:03,013 INFO L93 Difference]: Finished difference Result 8650 states and 11543 transitions. [2024-11-08 18:31:03,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:31:03,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 162 [2024-11-08 18:31:03,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:03,041 INFO L225 Difference]: With dead ends: 8650 [2024-11-08 18:31:03,041 INFO L226 Difference]: Without dead ends: 4802 [2024-11-08 18:31:03,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:31:03,052 INFO L432 NwaCegarLoop]: 4090 mSDtfsCounter, 0 mSDsluCounter, 16351 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20441 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:03,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20441 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:31:03,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4802 states. [2024-11-08 18:31:03,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4802 to 4768. [2024-11-08 18:31:03,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4768 states, 4338 states have (on average 1.487782388197326) internal successors, (6454), 4370 states have internal predecessors, (6454), 217 states have call successors, (217), 151 states have call predecessors, (217), 211 states have return successors, (330), 246 states have call predecessors, (330), 217 states have call successors, (330) [2024-11-08 18:31:03,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4768 states to 4768 states and 7001 transitions. [2024-11-08 18:31:03,471 INFO L78 Accepts]: Start accepts. Automaton has 4768 states and 7001 transitions. Word has length 162 [2024-11-08 18:31:03,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:03,472 INFO L471 AbstractCegarLoop]: Abstraction has 4768 states and 7001 transitions. [2024-11-08 18:31:03,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 18:31:03,472 INFO L276 IsEmpty]: Start isEmpty. Operand 4768 states and 7001 transitions. [2024-11-08 18:31:03,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-08 18:31:03,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:03,478 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:03,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-08 18:31:03,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-08 18:31:03,682 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:31:03,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:03,683 INFO L85 PathProgramCache]: Analyzing trace with hash -729677600, now seen corresponding path program 1 times [2024-11-08 18:31:03,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:31:03,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389322328] [2024-11-08 18:31:03,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:03,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:31:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:03,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:31:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:03,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:31:03,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:03,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:31:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:03,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:31:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:03,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:31:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:03,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:31:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:03,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:31:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:03,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 18:31:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:03,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:31:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:03,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 18:31:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:03,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 18:31:03,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:03,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-08 18:31:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:03,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-08 18:31:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:03,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 18:31:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:03,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-08 18:31:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:03,899 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-08 18:31:03,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:31:03,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389322328] [2024-11-08 18:31:03,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389322328] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:31:03,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774378256] [2024-11-08 18:31:03,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:03,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:03,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:31:03,903 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:31:03,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 18:31:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:04,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 18:31:04,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:31:04,130 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-08 18:31:04,131 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:31:04,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774378256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:04,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:31:04,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-11-08 18:31:04,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597868219] [2024-11-08 18:31:04,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:04,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:31:04,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:31:04,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:31:04,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:31:04,136 INFO L87 Difference]: Start difference. First operand 4768 states and 7001 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-08 18:31:04,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:04,390 INFO L93 Difference]: Finished difference Result 5849 states and 8259 transitions. [2024-11-08 18:31:04,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:31:04,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 167 [2024-11-08 18:31:04,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:04,408 INFO L225 Difference]: With dead ends: 5849 [2024-11-08 18:31:04,408 INFO L226 Difference]: Without dead ends: 3262 [2024-11-08 18:31:04,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:31:04,415 INFO L432 NwaCegarLoop]: 4090 mSDtfsCounter, 0 mSDsluCounter, 12264 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16354 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:04,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16354 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:31:04,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2024-11-08 18:31:04,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 3262. [2024-11-08 18:31:04,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3262 states, 3071 states have (on average 1.6265060240963856) internal successors, (4995), 3083 states have internal predecessors, (4995), 95 states have call successors, (95), 70 states have call predecessors, (95), 94 states have return successors, (126), 108 states have call predecessors, (126), 95 states have call successors, (126) [2024-11-08 18:31:04,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 5216 transitions. [2024-11-08 18:31:04,634 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 5216 transitions. Word has length 167 [2024-11-08 18:31:04,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:04,635 INFO L471 AbstractCegarLoop]: Abstraction has 3262 states and 5216 transitions. [2024-11-08 18:31:04,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-08 18:31:04,635 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 5216 transitions. [2024-11-08 18:31:04,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-08 18:31:04,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:04,639 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:04,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-08 18:31:04,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:04,841 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:31:04,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:04,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1375445922, now seen corresponding path program 1 times [2024-11-08 18:31:04,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:31:04,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519974233] [2024-11-08 18:31:04,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:04,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:31:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:04,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:31:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:04,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:31:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:04,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 18:31:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:04,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:31:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:05,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:31:05,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:05,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:31:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:05,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 18:31:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:05,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 18:31:05,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:05,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:31:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:05,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 18:31:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:05,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 18:31:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:05,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-08 18:31:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:05,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-08 18:31:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:05,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 18:31:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:05,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-08 18:31:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:05,044 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-08 18:31:05,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:31:05,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519974233] [2024-11-08 18:31:05,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519974233] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:31:05,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308860360] [2024-11-08 18:31:05,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:05,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:05,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:31:05,048 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:31:05,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-08 18:31:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:05,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 18:31:05,219 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:31:05,235 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-08 18:31:05,235 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:31:05,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308860360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:05,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:31:05,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2024-11-08 18:31:05,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93277396] [2024-11-08 18:31:05,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:05,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:31:05,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:31:05,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:31:05,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:31:05,238 INFO L87 Difference]: Start difference. First operand 3262 states and 5216 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-08 18:31:05,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:05,529 INFO L93 Difference]: Finished difference Result 3764 states and 5786 transitions. [2024-11-08 18:31:05,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:31:05,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 167 [2024-11-08 18:31:05,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:05,541 INFO L225 Difference]: With dead ends: 3764 [2024-11-08 18:31:05,541 INFO L226 Difference]: Without dead ends: 2123 [2024-11-08 18:31:05,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:31:05,545 INFO L432 NwaCegarLoop]: 4088 mSDtfsCounter, 0 mSDsluCounter, 12258 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16346 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:05,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16346 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:31:05,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2123 states. [2024-11-08 18:31:05,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2123 to 2123. [2024-11-08 18:31:05,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2123 states, 2122 states have (on average 1.8656927426955703) internal successors, (3959), 2122 states have internal predecessors, (3959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:05,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2123 states to 2123 states and 3959 transitions. [2024-11-08 18:31:05,594 INFO L78 Accepts]: Start accepts. Automaton has 2123 states and 3959 transitions. Word has length 167 [2024-11-08 18:31:05,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:05,595 INFO L471 AbstractCegarLoop]: Abstraction has 2123 states and 3959 transitions. [2024-11-08 18:31:05,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-08 18:31:05,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2123 states and 3959 transitions. [2024-11-08 18:31:05,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1692 [2024-11-08 18:31:05,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:05,720 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:05,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-08 18:31:05,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:05,922 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:31:05,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:05,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1265393445, now seen corresponding path program 1 times [2024-11-08 18:31:05,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:31:05,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732441797] [2024-11-08 18:31:05,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:05,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:31:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:12,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:31:12,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:31:12,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732441797] [2024-11-08 18:31:12,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732441797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:12,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:31:12,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:31:12,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413958071] [2024-11-08 18:31:12,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:12,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:31:12,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:31:12,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:31:12,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:31:12,577 INFO L87 Difference]: Start difference. First operand 2123 states and 3959 transitions. Second operand has 4 states, 4 states have (on average 422.75) internal successors, (1691), 3 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:31,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:31,695 INFO L93 Difference]: Finished difference Result 9399 states and 17961 transitions. [2024-11-08 18:31:31,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:31:31,696 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 422.75) internal successors, (1691), 3 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1691 [2024-11-08 18:31:31,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:31,718 INFO L225 Difference]: With dead ends: 9399 [2024-11-08 18:31:31,718 INFO L226 Difference]: Without dead ends: 7279 [2024-11-08 18:31:31,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:31:31,722 INFO L432 NwaCegarLoop]: 1164 mSDtfsCounter, 4177 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 10332 mSolverCounterSat, 5676 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4177 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 16008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5676 IncrementalHoareTripleChecker+Valid, 10332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:31,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4177 Valid, 1606 Invalid, 16008 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5676 Valid, 10332 Invalid, 0 Unknown, 0 Unchecked, 18.6s Time] [2024-11-08 18:31:31,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7279 states. [2024-11-08 18:31:31,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7279 to 5607. [2024-11-08 18:31:31,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5607 states, 5606 states have (on average 1.527827327863004) internal successors, (8565), 5606 states have internal predecessors, (8565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:31,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5607 states to 5607 states and 8565 transitions. [2024-11-08 18:31:31,832 INFO L78 Accepts]: Start accepts. Automaton has 5607 states and 8565 transitions. Word has length 1691 [2024-11-08 18:31:31,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:31,836 INFO L471 AbstractCegarLoop]: Abstraction has 5607 states and 8565 transitions. [2024-11-08 18:31:31,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 422.75) internal successors, (1691), 3 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:31,837 INFO L276 IsEmpty]: Start isEmpty. Operand 5607 states and 8565 transitions. [2024-11-08 18:31:31,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1812 [2024-11-08 18:31:31,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:31,875 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:31,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 18:31:31,876 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:31:31,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:31,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1475107247, now seen corresponding path program 1 times [2024-11-08 18:31:31,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:31:31,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539842305] [2024-11-08 18:31:31,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:31,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:31:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:34,136 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 18:31:34,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:31:34,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539842305] [2024-11-08 18:31:34,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539842305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:34,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:31:34,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:31:34,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819288715] [2024-11-08 18:31:34,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:34,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:31:34,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:31:34,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:31:34,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:31:34,144 INFO L87 Difference]: Start difference. First operand 5607 states and 8565 transitions. Second operand has 3 states, 3 states have (on average 600.6666666666666) internal successors, (1802), 2 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:42,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:42,848 INFO L93 Difference]: Finished difference Result 14650 states and 23316 transitions. [2024-11-08 18:31:42,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:31:42,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 600.6666666666666) internal successors, (1802), 2 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1811 [2024-11-08 18:31:42,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:42,874 INFO L225 Difference]: With dead ends: 14650 [2024-11-08 18:31:42,874 INFO L226 Difference]: Without dead ends: 9046 [2024-11-08 18:31:42,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:31:42,883 INFO L432 NwaCegarLoop]: 1759 mSDtfsCounter, 2322 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 4836 mSolverCounterSat, 2059 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2322 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 6895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2059 IncrementalHoareTripleChecker+Valid, 4836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:42,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2322 Valid, 1954 Invalid, 6895 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2059 Valid, 4836 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2024-11-08 18:31:42,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9046 states. [2024-11-08 18:31:42,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9046 to 9045. [2024-11-08 18:31:43,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9045 states, 9044 states have (on average 1.4606368863334807) internal successors, (13210), 9044 states have internal predecessors, (13210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:43,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9045 states to 9045 states and 13210 transitions. [2024-11-08 18:31:43,020 INFO L78 Accepts]: Start accepts. Automaton has 9045 states and 13210 transitions. Word has length 1811 [2024-11-08 18:31:43,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:43,021 INFO L471 AbstractCegarLoop]: Abstraction has 9045 states and 13210 transitions. [2024-11-08 18:31:43,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 600.6666666666666) internal successors, (1802), 2 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:43,022 INFO L276 IsEmpty]: Start isEmpty. Operand 9045 states and 13210 transitions. [2024-11-08 18:31:43,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1815 [2024-11-08 18:31:43,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:43,056 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:43,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 18:31:43,056 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:31:43,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:43,058 INFO L85 PathProgramCache]: Analyzing trace with hash -270006781, now seen corresponding path program 1 times [2024-11-08 18:31:43,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:31:43,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631027702] [2024-11-08 18:31:43,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:43,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:31:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:44,408 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:31:44,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:31:44,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631027702] [2024-11-08 18:31:44,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631027702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:44,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:31:44,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:31:44,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411290401] [2024-11-08 18:31:44,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:44,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:31:44,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:31:44,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:31:44,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:31:44,417 INFO L87 Difference]: Start difference. First operand 9045 states and 13210 transitions. Second operand has 3 states, 3 states have (on average 601.3333333333334) internal successors, (1804), 2 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:52,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:52,747 INFO L93 Difference]: Finished difference Result 24894 states and 37193 transitions. [2024-11-08 18:31:52,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:31:52,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 601.3333333333334) internal successors, (1804), 2 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1814 [2024-11-08 18:31:52,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:52,804 INFO L225 Difference]: With dead ends: 24894 [2024-11-08 18:31:52,805 INFO L226 Difference]: Without dead ends: 15852 [2024-11-08 18:31:52,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:31:52,819 INFO L432 NwaCegarLoop]: 2066 mSDtfsCounter, 2101 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 4496 mSolverCounterSat, 2354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2101 SdHoareTripleChecker+Valid, 2207 SdHoareTripleChecker+Invalid, 6850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2354 IncrementalHoareTripleChecker+Valid, 4496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:52,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2101 Valid, 2207 Invalid, 6850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2354 Valid, 4496 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-08 18:31:52,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15852 states. [2024-11-08 18:31:53,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15852 to 15850. [2024-11-08 18:31:53,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15850 states, 15849 states have (on average 1.3722632342734558) internal successors, (21749), 15849 states have internal predecessors, (21749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:53,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15850 states to 15850 states and 21749 transitions. [2024-11-08 18:31:53,080 INFO L78 Accepts]: Start accepts. Automaton has 15850 states and 21749 transitions. Word has length 1814 [2024-11-08 18:31:53,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:53,081 INFO L471 AbstractCegarLoop]: Abstraction has 15850 states and 21749 transitions. [2024-11-08 18:31:53,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 601.3333333333334) internal successors, (1804), 2 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:53,082 INFO L276 IsEmpty]: Start isEmpty. Operand 15850 states and 21749 transitions. [2024-11-08 18:31:53,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1833 [2024-11-08 18:31:53,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:53,298 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:53,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 18:31:53,302 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:31:53,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:53,304 INFO L85 PathProgramCache]: Analyzing trace with hash -36574315, now seen corresponding path program 1 times [2024-11-08 18:31:53,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:31:53,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435603138] [2024-11-08 18:31:53,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:53,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:31:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:56,236 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:31:56,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:31:56,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435603138] [2024-11-08 18:31:56,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435603138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:56,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:31:56,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:31:56,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979880503] [2024-11-08 18:31:56,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:56,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:31:56,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:31:56,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:31:56,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:31:56,244 INFO L87 Difference]: Start difference. First operand 15850 states and 21749 transitions. Second operand has 3 states, 3 states have (on average 607.0) internal successors, (1821), 3 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:32:05,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:32:05,252 INFO L93 Difference]: Finished difference Result 45296 states and 62817 transitions. [2024-11-08 18:32:05,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:32:05,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 607.0) internal successors, (1821), 3 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1832 [2024-11-08 18:32:05,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:32:05,297 INFO L225 Difference]: With dead ends: 45296 [2024-11-08 18:32:05,298 INFO L226 Difference]: Without dead ends: 29449 [2024-11-08 18:32:05,314 INFO L431 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 [2024-11-08 18:32:05,315 INFO L432 NwaCegarLoop]: 3924 mSDtfsCounter, 1734 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 5779 mSolverCounterSat, 1484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1734 SdHoareTripleChecker+Valid, 4147 SdHoareTripleChecker+Invalid, 7263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1484 IncrementalHoareTripleChecker+Valid, 5779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:32:05,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1734 Valid, 4147 Invalid, 7263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1484 Valid, 5779 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2024-11-08 18:32:05,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29449 states. [2024-11-08 18:32:05,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29449 to 29438. [2024-11-08 18:32:05,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29438 states, 29437 states have (on average 1.2318850426334205) internal successors, (36263), 29437 states have internal predecessors, (36263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:32:05,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29438 states to 29438 states and 36263 transitions. [2024-11-08 18:32:05,707 INFO L78 Accepts]: Start accepts. Automaton has 29438 states and 36263 transitions. Word has length 1832 [2024-11-08 18:32:05,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:32:05,708 INFO L471 AbstractCegarLoop]: Abstraction has 29438 states and 36263 transitions. [2024-11-08 18:32:05,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 607.0) internal successors, (1821), 3 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:32:05,708 INFO L276 IsEmpty]: Start isEmpty. Operand 29438 states and 36263 transitions. [2024-11-08 18:32:05,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1837 [2024-11-08 18:32:05,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:32:05,769 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:32:05,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 18:32:05,769 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:32:05,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:32:05,771 INFO L85 PathProgramCache]: Analyzing trace with hash 2086988918, now seen corresponding path program 1 times [2024-11-08 18:32:05,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:32:05,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575163228] [2024-11-08 18:32:05,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:32:05,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:32:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:32:09,947 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-08 18:32:09,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:32:09,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575163228] [2024-11-08 18:32:09,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575163228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:32:09,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:32:09,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:32:09,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386797831] [2024-11-08 18:32:09,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:32:09,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:32:09,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:32:09,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:32:09,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:32:09,954 INFO L87 Difference]: Start difference. First operand 29438 states and 36263 transitions. Second operand has 5 states, 5 states have (on average 360.4) internal successors, (1802), 4 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:32:35,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:32:35,287 INFO L93 Difference]: Finished difference Result 77500 states and 94385 transitions. [2024-11-08 18:32:35,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:32:35,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 360.4) internal successors, (1802), 4 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1836 [2024-11-08 18:32:35,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:32:35,373 INFO L225 Difference]: With dead ends: 77500 [2024-11-08 18:32:35,373 INFO L226 Difference]: Without dead ends: 44713 [2024-11-08 18:32:35,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:32:35,410 INFO L432 NwaCegarLoop]: 1359 mSDtfsCounter, 7131 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 18069 mSolverCounterSat, 2999 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7131 SdHoareTripleChecker+Valid, 2046 SdHoareTripleChecker+Invalid, 21068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2999 IncrementalHoareTripleChecker+Valid, 18069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:32:35,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7131 Valid, 2046 Invalid, 21068 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2999 Valid, 18069 Invalid, 0 Unknown, 0 Unchecked, 24.3s Time] [2024-11-08 18:32:35,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44713 states. [2024-11-08 18:32:35,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44713 to 44711. [2024-11-08 18:32:36,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44711 states, 44710 states have (on average 1.1202415566987252) internal successors, (50086), 44710 states have internal predecessors, (50086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:32:36,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44711 states to 44711 states and 50086 transitions. [2024-11-08 18:32:36,075 INFO L78 Accepts]: Start accepts. Automaton has 44711 states and 50086 transitions. Word has length 1836 [2024-11-08 18:32:36,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:32:36,077 INFO L471 AbstractCegarLoop]: Abstraction has 44711 states and 50086 transitions. [2024-11-08 18:32:36,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 360.4) internal successors, (1802), 4 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:32:36,077 INFO L276 IsEmpty]: Start isEmpty. Operand 44711 states and 50086 transitions. [2024-11-08 18:32:36,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2082 [2024-11-08 18:32:36,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:32:36,178 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:32:36,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 18:32:36,179 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:32:36,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:32:36,180 INFO L85 PathProgramCache]: Analyzing trace with hash -479355551, now seen corresponding path program 1 times [2024-11-08 18:32:36,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:32:36,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767650899] [2024-11-08 18:32:36,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:32:36,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:32:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:32:39,082 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-11-08 18:32:39,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:32:39,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767650899] [2024-11-08 18:32:39,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767650899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:32:39,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:32:39,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:32:39,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090636123] [2024-11-08 18:32:39,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:32:39,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:32:39,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:32:39,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:32:39,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:32:39,091 INFO L87 Difference]: Start difference. First operand 44711 states and 50086 transitions. Second operand has 3 states, 3 states have (on average 646.3333333333334) internal successors, (1939), 3 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:32:49,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:32:49,231 INFO L93 Difference]: Finished difference Result 103007 states and 116992 transitions. [2024-11-08 18:32:49,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:32:49,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 646.3333333333334) internal successors, (1939), 3 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2081 [2024-11-08 18:32:49,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:32:49,315 INFO L225 Difference]: With dead ends: 103007 [2024-11-08 18:32:49,315 INFO L226 Difference]: Without dead ends: 58299 [2024-11-08 18:32:49,362 INFO L431 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 [2024-11-08 18:32:49,363 INFO L432 NwaCegarLoop]: 3802 mSDtfsCounter, 1872 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 5367 mSolverCounterSat, 1634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1872 SdHoareTripleChecker+Valid, 4182 SdHoareTripleChecker+Invalid, 7001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1634 IncrementalHoareTripleChecker+Valid, 5367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:32:49,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1872 Valid, 4182 Invalid, 7001 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1634 Valid, 5367 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2024-11-08 18:32:49,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58299 states. [2024-11-08 18:32:50,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58299 to 58298. [2024-11-08 18:32:50,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58298 states, 58297 states have (on average 1.1072782475942158) internal successors, (64551), 58297 states have internal predecessors, (64551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:32:50,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58298 states to 58298 states and 64551 transitions. [2024-11-08 18:32:50,162 INFO L78 Accepts]: Start accepts. Automaton has 58298 states and 64551 transitions. Word has length 2081 [2024-11-08 18:32:50,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:32:50,163 INFO L471 AbstractCegarLoop]: Abstraction has 58298 states and 64551 transitions. [2024-11-08 18:32:50,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 646.3333333333334) internal successors, (1939), 3 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:32:50,164 INFO L276 IsEmpty]: Start isEmpty. Operand 58298 states and 64551 transitions. [2024-11-08 18:32:50,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2104 [2024-11-08 18:32:50,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:32:50,243 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:32:50,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 18:32:50,244 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:32:50,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:32:50,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1112172608, now seen corresponding path program 1 times [2024-11-08 18:32:50,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:32:50,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440672004] [2024-11-08 18:32:50,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:32:50,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:32:50,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:32:53,187 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 507 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 18:32:53,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:32:53,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440672004] [2024-11-08 18:32:53,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440672004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:32:53,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:32:53,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:32:53,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686319860] [2024-11-08 18:32:53,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:32:53,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:32:53,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:32:53,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:32:53,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:32:53,196 INFO L87 Difference]: Start difference. First operand 58298 states and 64551 transitions. Second operand has 3 states, 3 states have (on average 650.3333333333334) internal successors, (1951), 3 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:33:03,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:03,058 INFO L93 Difference]: Finished difference Result 142070 states and 156867 transitions. [2024-11-08 18:33:03,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:33:03,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 650.3333333333334) internal successors, (1951), 3 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2103 [2024-11-08 18:33:03,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:03,197 INFO L225 Difference]: With dead ends: 142070 [2024-11-08 18:33:03,197 INFO L226 Difference]: Without dead ends: 83775 [2024-11-08 18:33:03,241 INFO L431 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 [2024-11-08 18:33:03,242 INFO L432 NwaCegarLoop]: 1954 mSDtfsCounter, 1860 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 5775 mSolverCounterSat, 886 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1860 SdHoareTripleChecker+Valid, 2245 SdHoareTripleChecker+Invalid, 6661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 886 IncrementalHoareTripleChecker+Valid, 5775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:03,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1860 Valid, 2245 Invalid, 6661 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [886 Valid, 5775 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2024-11-08 18:33:03,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83775 states. [2024-11-08 18:33:04,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83775 to 78673. [2024-11-08 18:33:04,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78673 states, 78672 states have (on average 1.0940359975594875) internal successors, (86070), 78672 states have internal predecessors, (86070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:33:04,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78673 states to 78673 states and 86070 transitions. [2024-11-08 18:33:04,849 INFO L78 Accepts]: Start accepts. Automaton has 78673 states and 86070 transitions. Word has length 2103 [2024-11-08 18:33:04,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:04,850 INFO L471 AbstractCegarLoop]: Abstraction has 78673 states and 86070 transitions. [2024-11-08 18:33:04,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 650.3333333333334) internal successors, (1951), 3 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:33:04,851 INFO L276 IsEmpty]: Start isEmpty. Operand 78673 states and 86070 transitions. [2024-11-08 18:33:04,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2181 [2024-11-08 18:33:04,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:04,970 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:33:04,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-08 18:33:04,970 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:04,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:04,972 INFO L85 PathProgramCache]: Analyzing trace with hash -164708396, now seen corresponding path program 1 times [2024-11-08 18:33:04,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:04,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864730092] [2024-11-08 18:33:04,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:04,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:08,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1063 backedges. 794 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-08 18:33:08,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:08,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864730092] [2024-11-08 18:33:08,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864730092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:08,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:08,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:33:08,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133021351] [2024-11-08 18:33:08,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:08,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:33:08,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:08,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:33:08,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:33:08,133 INFO L87 Difference]: Start difference. First operand 78673 states and 86070 transitions. Second operand has 3 states, 3 states have (on average 657.3333333333334) internal successors, (1972), 3 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:33:19,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:19,909 INFO L93 Difference]: Finished difference Result 194712 states and 215735 transitions. [2024-11-08 18:33:19,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:33:19,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 657.3333333333334) internal successors, (1972), 3 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2180 [2024-11-08 18:33:19,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:20,166 INFO L225 Difference]: With dead ends: 194712 [2024-11-08 18:33:20,167 INFO L226 Difference]: Without dead ends: 116042 [2024-11-08 18:33:20,203 INFO L431 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 [2024-11-08 18:33:20,204 INFO L432 NwaCegarLoop]: 3895 mSDtfsCounter, 1756 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 5777 mSolverCounterSat, 1481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1756 SdHoareTripleChecker+Valid, 4145 SdHoareTripleChecker+Invalid, 7258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1481 IncrementalHoareTripleChecker+Valid, 5777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:20,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1756 Valid, 4145 Invalid, 7258 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1481 Valid, 5777 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2024-11-08 18:33:20,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116042 states. [2024-11-08 18:33:21,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116042 to 114335. [2024-11-08 18:33:22,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114335 states, 114334 states have (on average 1.078445606731156) internal successors, (123303), 114334 states have internal predecessors, (123303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:33:22,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114335 states to 114335 states and 123303 transitions. [2024-11-08 18:33:22,707 INFO L78 Accepts]: Start accepts. Automaton has 114335 states and 123303 transitions. Word has length 2180 [2024-11-08 18:33:22,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:22,708 INFO L471 AbstractCegarLoop]: Abstraction has 114335 states and 123303 transitions. [2024-11-08 18:33:22,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 657.3333333333334) internal successors, (1972), 3 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:33:22,709 INFO L276 IsEmpty]: Start isEmpty. Operand 114335 states and 123303 transitions. [2024-11-08 18:33:22,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2287 [2024-11-08 18:33:22,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:22,889 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:33:22,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-08 18:33:22,890 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:22,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:22,892 INFO L85 PathProgramCache]: Analyzing trace with hash 166938795, now seen corresponding path program 1 times [2024-11-08 18:33:22,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:22,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49683783] [2024-11-08 18:33:22,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:22,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:26,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 907 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-11-08 18:33:26,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:26,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49683783] [2024-11-08 18:33:26,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49683783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:26,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:26,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:33:26,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120149945] [2024-11-08 18:33:26,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:26,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:33:26,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:26,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:33:26,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:33:26,020 INFO L87 Difference]: Start difference. First operand 114335 states and 123303 transitions. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:33:35,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:35,113 INFO L93 Difference]: Finished difference Result 237162 states and 255791 transitions. [2024-11-08 18:33:35,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:33:35,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2286 [2024-11-08 18:33:35,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:35,247 INFO L225 Difference]: With dead ends: 237162 [2024-11-08 18:33:35,247 INFO L226 Difference]: Without dead ends: 116038 [2024-11-08 18:33:35,283 INFO L431 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 [2024-11-08 18:33:35,283 INFO L432 NwaCegarLoop]: 3611 mSDtfsCounter, 2095 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 4757 mSolverCounterSat, 1688 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2095 SdHoareTripleChecker+Valid, 3836 SdHoareTripleChecker+Invalid, 6445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1688 IncrementalHoareTripleChecker+Valid, 4757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:35,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2095 Valid, 3836 Invalid, 6445 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1688 Valid, 4757 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2024-11-08 18:33:35,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116038 states. [2024-11-08 18:33:36,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116038 to 116032. [2024-11-08 18:33:36,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116032 states, 116031 states have (on average 1.0390757642354198) internal successors, (120565), 116031 states have internal predecessors, (120565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:33:36,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116032 states to 116032 states and 120565 transitions. [2024-11-08 18:33:36,850 INFO L78 Accepts]: Start accepts. Automaton has 116032 states and 120565 transitions. Word has length 2286 [2024-11-08 18:33:36,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:36,851 INFO L471 AbstractCegarLoop]: Abstraction has 116032 states and 120565 transitions. [2024-11-08 18:33:36,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:33:36,851 INFO L276 IsEmpty]: Start isEmpty. Operand 116032 states and 120565 transitions. [2024-11-08 18:33:36,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2369 [2024-11-08 18:33:36,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:36,948 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:33:36,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 18:33:36,948 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:36,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:36,948 INFO L85 PathProgramCache]: Analyzing trace with hash 314541266, now seen corresponding path program 1 times [2024-11-08 18:33:36,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:36,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867155095] [2024-11-08 18:33:36,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:36,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:40,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1509 backedges. 911 proven. 0 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2024-11-08 18:33:40,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:40,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867155095] [2024-11-08 18:33:40,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867155095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:40,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:40,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:33:40,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443849402] [2024-11-08 18:33:40,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:40,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:33:40,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:40,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:33:40,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:33:40,067 INFO L87 Difference]: Start difference. First operand 116032 states and 120565 transitions. Second operand has 3 states, 3 states have (on average 651.0) internal successors, (1953), 3 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:33:47,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:47,570 INFO L93 Difference]: Finished difference Result 232066 states and 241136 transitions. [2024-11-08 18:33:47,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:33:47,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 651.0) internal successors, (1953), 3 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2368 [2024-11-08 18:33:47,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:47,731 INFO L225 Difference]: With dead ends: 232066 [2024-11-08 18:33:47,731 INFO L226 Difference]: Without dead ends: 116037 [2024-11-08 18:33:47,763 INFO L431 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 [2024-11-08 18:33:47,764 INFO L432 NwaCegarLoop]: 866 mSDtfsCounter, 2201 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 4442 mSolverCounterSat, 735 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2201 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 5177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 735 IncrementalHoareTripleChecker+Valid, 4442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:47,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2201 Valid, 1053 Invalid, 5177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [735 Valid, 4442 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-08 18:33:47,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116037 states. [2024-11-08 18:33:49,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116037 to 116031. [2024-11-08 18:33:49,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116031 states, 116030 states have (on average 1.0314315263293976) internal successors, (119677), 116030 states have internal predecessors, (119677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:33:49,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116031 states to 116031 states and 119677 transitions. [2024-11-08 18:33:49,663 INFO L78 Accepts]: Start accepts. Automaton has 116031 states and 119677 transitions. Word has length 2368 [2024-11-08 18:33:49,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:49,665 INFO L471 AbstractCegarLoop]: Abstraction has 116031 states and 119677 transitions. [2024-11-08 18:33:49,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 651.0) internal successors, (1953), 3 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:33:49,666 INFO L276 IsEmpty]: Start isEmpty. Operand 116031 states and 119677 transitions. [2024-11-08 18:33:49,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2411 [2024-11-08 18:33:49,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:49,963 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:33:49,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 18:33:49,963 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:49,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:49,964 INFO L85 PathProgramCache]: Analyzing trace with hash 631067450, now seen corresponding path program 1 times [2024-11-08 18:33:49,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:49,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279449976] [2024-11-08 18:33:49,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:49,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:56,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1776 backedges. 1134 proven. 0 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2024-11-08 18:33:56,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:56,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279449976] [2024-11-08 18:33:56,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279449976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:56,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:56,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:33:56,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443299088] [2024-11-08 18:33:56,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:56,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:33:56,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:56,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:33:56,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:33:56,685 INFO L87 Difference]: Start difference. First operand 116031 states and 119677 transitions. Second operand has 3 states, 3 states have (on average 658.0) internal successors, (1974), 3 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:34:06,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:06,123 INFO L93 Difference]: Finished difference Result 271134 states and 280879 transitions. [2024-11-08 18:34:06,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:34:06,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 658.0) internal successors, (1974), 3 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2410 [2024-11-08 18:34:06,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:06,338 INFO L225 Difference]: With dead ends: 271134 [2024-11-08 18:34:06,338 INFO L226 Difference]: Without dead ends: 155106 [2024-11-08 18:34:06,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:34:06,371 INFO L432 NwaCegarLoop]: 769 mSDtfsCounter, 2152 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4391 mSolverCounterSat, 1525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2152 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 5916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1525 IncrementalHoareTripleChecker+Valid, 4391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:06,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2152 Valid, 852 Invalid, 5916 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1525 Valid, 4391 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-08 18:34:06,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155106 states. [2024-11-08 18:34:08,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155106 to 151691. [2024-11-08 18:34:08,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151691 states, 151690 states have (on average 1.037332718043378) internal successors, (157353), 151690 states have internal predecessors, (157353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:34:09,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151691 states to 151691 states and 157353 transitions. [2024-11-08 18:34:09,048 INFO L78 Accepts]: Start accepts. Automaton has 151691 states and 157353 transitions. Word has length 2410 [2024-11-08 18:34:09,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:09,049 INFO L471 AbstractCegarLoop]: Abstraction has 151691 states and 157353 transitions. [2024-11-08 18:34:09,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 658.0) internal successors, (1974), 3 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:34:09,049 INFO L276 IsEmpty]: Start isEmpty. Operand 151691 states and 157353 transitions. [2024-11-08 18:34:09,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2475 [2024-11-08 18:34:09,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:09,191 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:09,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-08 18:34:09,192 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:09,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:09,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1604378884, now seen corresponding path program 1 times [2024-11-08 18:34:09,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:09,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149549468] [2024-11-08 18:34:09,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:09,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:16,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2198 backedges. 1373 proven. 502 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2024-11-08 18:34:16,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:16,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149549468] [2024-11-08 18:34:16,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149549468] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:34:16,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003562943] [2024-11-08 18:34:16,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:16,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:34:16,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:16,967 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:34:16,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-08 18:34:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:18,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 2904 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:34:18,293 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:18,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2198 backedges. 1294 proven. 0 refuted. 0 times theorem prover too weak. 904 trivial. 0 not checked. [2024-11-08 18:34:18,535 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:34:18,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003562943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:18,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:34:18,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-08 18:34:18,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143401049] [2024-11-08 18:34:18,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:18,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:34:18,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:18,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:34:18,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:34:18,547 INFO L87 Difference]: Start difference. First operand 151691 states and 157353 transitions. Second operand has 3 states, 3 states have (on average 653.0) internal successors, (1959), 3 states have internal predecessors, (1959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:34:27,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:27,698 INFO L93 Difference]: Finished difference Result 342452 states and 355879 transitions. [2024-11-08 18:34:27,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:34:27,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 653.0) internal successors, (1959), 3 states have internal predecessors, (1959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2474 [2024-11-08 18:34:27,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:27,926 INFO L225 Difference]: With dead ends: 342452 [2024-11-08 18:34:27,926 INFO L226 Difference]: Without dead ends: 190764 [2024-11-08 18:34:28,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2481 GetRequests, 2476 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:34:28,401 INFO L432 NwaCegarLoop]: 1085 mSDtfsCounter, 2016 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 4524 mSolverCounterSat, 1059 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2016 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 5583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1059 IncrementalHoareTripleChecker+Valid, 4524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:28,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2016 Valid, 1243 Invalid, 5583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1059 Valid, 4524 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2024-11-08 18:34:28,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190764 states. [2024-11-08 18:34:30,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190764 to 187346. [2024-11-08 18:34:30,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187346 states, 187345 states have (on average 1.038821425711922) internal successors, (194618), 187345 states have internal predecessors, (194618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:34:31,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187346 states to 187346 states and 194618 transitions. [2024-11-08 18:34:31,222 INFO L78 Accepts]: Start accepts. Automaton has 187346 states and 194618 transitions. Word has length 2474 [2024-11-08 18:34:31,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:31,223 INFO L471 AbstractCegarLoop]: Abstraction has 187346 states and 194618 transitions. [2024-11-08 18:34:31,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 653.0) internal successors, (1959), 3 states have internal predecessors, (1959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:34:31,223 INFO L276 IsEmpty]: Start isEmpty. Operand 187346 states and 194618 transitions. [2024-11-08 18:34:31,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2591 [2024-11-08 18:34:31,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:31,400 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:31,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:31,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc034dd-ac42-44ab-b341-47f6d2baebbd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-08 18:34:31,601 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:31,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:31,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1934199712, now seen corresponding path program 1 times [2024-11-08 18:34:31,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:31,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017427348] [2024-11-08 18:34:31,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:31,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat