./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label08.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1 --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 219fae8b2e03d20bcb768458013f321b0dd264dfdc5412ade22b395f9d4baa67 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:52:32,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:52:32,722 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 13:52:32,727 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:52:32,727 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:52:32,747 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:52:32,748 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:52:32,748 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:52:32,748 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:52:32,749 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:52:32,749 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:52:32,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:52:32,749 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:52:32,749 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:52:32,749 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:52:32,749 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:52:32,750 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:52:32,750 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:52:32,750 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:52:32,750 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:52:32,750 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:52:32,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:52:32,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:52:32,750 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:52:32,750 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:52:32,750 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:52:32,750 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:52:32,750 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:52:32,750 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:52:32,751 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:52:32,751 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:52:32,751 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:52:32,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:52:32,751 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:52:32,751 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:52:32,751 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:52:32,751 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:52:32,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:52:32,751 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:52:32,751 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:52:32,751 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:52:32,752 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:52:32,752 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:52:32,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:52:32,752 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:52:32,752 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:52:32,752 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:52:32,752 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:52:32,752 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1 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 -> 219fae8b2e03d20bcb768458013f321b0dd264dfdc5412ade22b395f9d4baa67 [2024-12-02 13:52:32,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:52:33,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:52:33,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:52:33,010 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:52:33,010 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:52:33,012 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label08.c [2024-12-02 13:52:35,637 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/data/ab9b5cb19/57cd432b428e45cd8411cb8ed2919d1d/FLAG62b681d27 [2024-12-02 13:52:36,061 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:52:36,062 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label08.c [2024-12-02 13:52:36,088 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/data/ab9b5cb19/57cd432b428e45cd8411cb8ed2919d1d/FLAG62b681d27 [2024-12-02 13:52:36,103 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/data/ab9b5cb19/57cd432b428e45cd8411cb8ed2919d1d [2024-12-02 13:52:36,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:52:36,106 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:52:36,108 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:52:36,108 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:52:36,112 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:52:36,113 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:52:36" (1/1) ... [2024-12-02 13:52:36,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@686f7038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:36, skipping insertion in model container [2024-12-02 13:52:36,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:52:36" (1/1) ... [2024-12-02 13:52:36,222 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:52:36,538 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_f3404bbf-b7bf-4206-acdf-d5bf53fead64/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label08.c[26888,26901] [2024-12-02 13:52:36,574 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_f3404bbf-b7bf-4206-acdf-d5bf53fead64/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label08.c[30395,30408] [2024-12-02 13:52:37,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:52:37,179 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:52:37,222 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_f3404bbf-b7bf-4206-acdf-d5bf53fead64/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label08.c[26888,26901] [2024-12-02 13:52:37,228 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_f3404bbf-b7bf-4206-acdf-d5bf53fead64/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label08.c[30395,30408] [2024-12-02 13:52:37,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:52:37,695 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:52:37,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:37 WrapperNode [2024-12-02 13:52:37,696 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:52:37,696 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:52:37,697 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:52:37,697 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:52:37,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:37" (1/1) ... [2024-12-02 13:52:37,740 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:37" (1/1) ... [2024-12-02 13:52:38,019 INFO L138 Inliner]: procedures = 40, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5289 [2024-12-02 13:52:38,019 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:52:38,019 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:52:38,019 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:52:38,019 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:52:38,028 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:37" (1/1) ... [2024-12-02 13:52:38,028 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:37" (1/1) ... [2024-12-02 13:52:38,075 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:37" (1/1) ... [2024-12-02 13:52:38,245 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]. [2024-12-02 13:52:38,245 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:37" (1/1) ... [2024-12-02 13:52:38,246 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:37" (1/1) ... [2024-12-02 13:52:38,337 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:37" (1/1) ... [2024-12-02 13:52:38,350 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:37" (1/1) ... [2024-12-02 13:52:38,370 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:37" (1/1) ... [2024-12-02 13:52:38,398 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:37" (1/1) ... [2024-12-02 13:52:38,410 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:37" (1/1) ... [2024-12-02 13:52:38,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:52:38,533 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:52:38,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:52:38,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:52:38,534 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:37" (1/1) ... [2024-12-02 13:52:38,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:52:38,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:52:38,563 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:52:38,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:52:38,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:52:38,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:52:38,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:52:38,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:52:38,718 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:52:38,719 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:52:43,169 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-12-02 13:52:43,169 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:52:43,196 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:52:43,197 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 13:52:43,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:52:43 BoogieIcfgContainer [2024-12-02 13:52:43,197 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:52:43,200 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:52:43,200 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:52:43,203 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:52:43,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:52:36" (1/3) ... [2024-12-02 13:52:43,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a0a236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:52:43, skipping insertion in model container [2024-12-02 13:52:43,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:37" (2/3) ... [2024-12-02 13:52:43,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a0a236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:52:43, skipping insertion in model container [2024-12-02 13:52:43,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:52:43" (3/3) ... [2024-12-02 13:52:43,206 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label08.c [2024-12-02 13:52:43,217 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:52:43,219 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label08.c that has 1 procedures, 949 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 13:52:43,283 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:52:43,293 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;@7899de48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:52:43,293 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 13:52:43,300 INFO L276 IsEmpty]: Start isEmpty. Operand has 949 states, 946 states have (on average 1.9027484143763214) internal successors, (1800), 948 states have internal predecessors, (1800), 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) [2024-12-02 13:52:43,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 13:52:43,305 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:43,306 INFO L218 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] [2024-12-02 13:52:43,306 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:43,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:43,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1967767115, now seen corresponding path program 1 times [2024-12-02 13:52:43,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:52:43,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093854018] [2024-12-02 13:52:43,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:43,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:52:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:43,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:52:43,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:52:43,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093854018] [2024-12-02 13:52:43,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093854018] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:52:43,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:52:43,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:52:43,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722428657] [2024-12-02 13:52:43,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:43,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 13:52:43,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:52:43,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 13:52:43,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:52:43,572 INFO L87 Difference]: Start difference. First operand has 949 states, 946 states have (on average 1.9027484143763214) internal successors, (1800), 948 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2024-12-02 13:52:43,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:43,642 INFO L93 Difference]: Finished difference Result 1829 states and 3468 transitions. [2024-12-02 13:52:43,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:52:43,644 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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 30 [2024-12-02 13:52:43,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:43,657 INFO L225 Difference]: With dead ends: 1829 [2024-12-02 13:52:43,657 INFO L226 Difference]: Without dead ends: 883 [2024-12-02 13:52:43,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:52:43,664 INFO L435 NwaCegarLoop]: 1731 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:52:43,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:52:43,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-12-02 13:52:43,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2024-12-02 13:52:43,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 881 states have (on average 1.8921679909194098) internal successors, (1667), 882 states have internal predecessors, (1667), 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) [2024-12-02 13:52:43,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1667 transitions. [2024-12-02 13:52:43,726 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1667 transitions. Word has length 30 [2024-12-02 13:52:43,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:52:43,726 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1667 transitions. [2024-12-02 13:52:43,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2024-12-02 13:52:43,726 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1667 transitions. [2024-12-02 13:52:43,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 13:52:43,728 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:43,728 INFO L218 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] [2024-12-02 13:52:43,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:52:43,728 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:43,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:43,729 INFO L85 PathProgramCache]: Analyzing trace with hash -2101780621, now seen corresponding path program 1 times [2024-12-02 13:52:43,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:52:43,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891260368] [2024-12-02 13:52:43,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:43,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:52:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:43,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:52:43,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:52:43,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891260368] [2024-12-02 13:52:43,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891260368] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:52:43,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:52:43,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:52:43,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264128552] [2024-12-02 13:52:43,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:43,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:52:43,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:52:43,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:52:43,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:52:43,983 INFO L87 Difference]: Start difference. First operand 883 states and 1667 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2024-12-02 13:52:44,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:44,104 INFO L93 Difference]: Finished difference Result 949 states and 1771 transitions. [2024-12-02 13:52:44,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:52:44,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 30 [2024-12-02 13:52:44,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:44,107 INFO L225 Difference]: With dead ends: 949 [2024-12-02 13:52:44,107 INFO L226 Difference]: Without dead ends: 883 [2024-12-02 13:52:44,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:52:44,108 INFO L435 NwaCegarLoop]: 1665 mSDtfsCounter, 0 mSDsluCounter, 4929 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6594 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:52:44,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6594 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:52:44,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-12-02 13:52:44,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2024-12-02 13:52:44,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 881 states have (on average 1.8229284903518728) internal successors, (1606), 882 states have internal predecessors, (1606), 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) [2024-12-02 13:52:44,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1606 transitions. [2024-12-02 13:52:44,126 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1606 transitions. Word has length 30 [2024-12-02 13:52:44,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:52:44,127 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1606 transitions. [2024-12-02 13:52:44,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2024-12-02 13:52:44,127 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1606 transitions. [2024-12-02 13:52:44,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 13:52:44,127 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:44,127 INFO L218 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] [2024-12-02 13:52:44,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:52:44,128 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:44,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:44,128 INFO L85 PathProgramCache]: Analyzing trace with hash -829623699, now seen corresponding path program 1 times [2024-12-02 13:52:44,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:52:44,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878467968] [2024-12-02 13:52:44,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:44,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:52:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:44,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:52:44,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:52:44,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878467968] [2024-12-02 13:52:44,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878467968] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:52:44,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:52:44,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:52:44,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135919324] [2024-12-02 13:52:44,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:44,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:52:44,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:52:44,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:52:44,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:44,208 INFO L87 Difference]: Start difference. First operand 883 states and 1606 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2024-12-02 13:52:47,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:47,521 INFO L93 Difference]: Finished difference Result 2387 states and 4479 transitions. [2024-12-02 13:52:47,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:52:47,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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 30 [2024-12-02 13:52:47,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:47,528 INFO L225 Difference]: With dead ends: 2387 [2024-12-02 13:52:47,528 INFO L226 Difference]: Without dead ends: 1634 [2024-12-02 13:52:47,530 INFO L434 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 [2024-12-02 13:52:47,530 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 930 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2440 mSolverCounterSat, 704 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 3144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 704 IncrementalHoareTripleChecker+Valid, 2440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:52:47,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [930 Valid, 253 Invalid, 3144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [704 Valid, 2440 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-12-02 13:52:47,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2024-12-02 13:52:47,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1634. [2024-12-02 13:52:47,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1632 states have (on average 1.8229166666666667) internal successors, (2975), 1633 states have internal predecessors, (2975), 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) [2024-12-02 13:52:47,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2975 transitions. [2024-12-02 13:52:47,572 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2975 transitions. Word has length 30 [2024-12-02 13:52:47,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:52:47,573 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2975 transitions. [2024-12-02 13:52:47,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2024-12-02 13:52:47,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2975 transitions. [2024-12-02 13:52:47,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 13:52:47,575 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:47,575 INFO L218 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] [2024-12-02 13:52:47,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:52:47,575 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:47,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:47,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1651582301, now seen corresponding path program 1 times [2024-12-02 13:52:47,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:52:47,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504031031] [2024-12-02 13:52:47,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:47,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:52:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:47,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:52:47,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:52:47,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504031031] [2024-12-02 13:52:47,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504031031] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:52:47,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:52:47,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:52:47,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87422949] [2024-12-02 13:52:47,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:47,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:52:47,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:52:47,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:52:47,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:52:47,938 INFO L87 Difference]: Start difference. First operand 1634 states and 2975 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:52:48,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:48,452 INFO L93 Difference]: Finished difference Result 2626 states and 4575 transitions. [2024-12-02 13:52:48,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 13:52:48,452 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-12-02 13:52:48,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:48,459 INFO L225 Difference]: With dead ends: 2626 [2024-12-02 13:52:48,459 INFO L226 Difference]: Without dead ends: 2564 [2024-12-02 13:52:48,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-12-02 13:52:48,460 INFO L435 NwaCegarLoop]: 1600 mSDtfsCounter, 13578 mSDsluCounter, 3975 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13578 SdHoareTripleChecker+Valid, 5575 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:52:48,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13578 Valid, 5575 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:52:48,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2024-12-02 13:52:48,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 1694. [2024-12-02 13:52:48,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1694 states, 1692 states have (on average 1.8156028368794326) internal successors, (3072), 1693 states have internal predecessors, (3072), 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) [2024-12-02 13:52:48,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1694 states to 1694 states and 3072 transitions. [2024-12-02 13:52:48,494 INFO L78 Accepts]: Start accepts. Automaton has 1694 states and 3072 transitions. Word has length 90 [2024-12-02 13:52:48,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:52:48,494 INFO L471 AbstractCegarLoop]: Abstraction has 1694 states and 3072 transitions. [2024-12-02 13:52:48,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:52:48,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1694 states and 3072 transitions. [2024-12-02 13:52:48,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 13:52:48,497 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:48,497 INFO L218 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] [2024-12-02 13:52:48,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:52:48,497 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:48,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:48,498 INFO L85 PathProgramCache]: Analyzing trace with hash 551619955, now seen corresponding path program 1 times [2024-12-02 13:52:48,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:52:48,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294251066] [2024-12-02 13:52:48,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:48,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:52:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:48,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:52:48,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:52:48,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294251066] [2024-12-02 13:52:48,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294251066] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:52:48,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:52:48,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:52:48,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764345244] [2024-12-02 13:52:48,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:48,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:52:48,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:52:48,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:52:48,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:48,638 INFO L87 Difference]: Start difference. First operand 1694 states and 3072 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-12-02 13:52:48,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:48,671 INFO L93 Difference]: Finished difference Result 1927 states and 3447 transitions. [2024-12-02 13:52:48,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:52:48,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 92 [2024-12-02 13:52:48,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:48,676 INFO L225 Difference]: With dead ends: 1927 [2024-12-02 13:52:48,676 INFO L226 Difference]: Without dead ends: 1805 [2024-12-02 13:52:48,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:48,677 INFO L435 NwaCegarLoop]: 1602 mSDtfsCounter, 1508 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:52:48,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1695 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:52:48,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2024-12-02 13:52:48,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 1801. [2024-12-02 13:52:48,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1799 states have (on average 1.802112284602557) internal successors, (3242), 1800 states have internal predecessors, (3242), 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) [2024-12-02 13:52:48,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 3242 transitions. [2024-12-02 13:52:48,708 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 3242 transitions. Word has length 92 [2024-12-02 13:52:48,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:52:48,708 INFO L471 AbstractCegarLoop]: Abstraction has 1801 states and 3242 transitions. [2024-12-02 13:52:48,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-12-02 13:52:48,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 3242 transitions. [2024-12-02 13:52:48,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 13:52:48,710 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:48,710 INFO L218 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] [2024-12-02 13:52:48,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 13:52:48,710 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:48,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:48,710 INFO L85 PathProgramCache]: Analyzing trace with hash 618113467, now seen corresponding path program 1 times [2024-12-02 13:52:48,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:52:48,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300645801] [2024-12-02 13:52:48,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:48,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:52:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:49,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:52:49,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:52:49,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300645801] [2024-12-02 13:52:49,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300645801] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:52:49,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:52:49,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:52:49,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095282760] [2024-12-02 13:52:49,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:49,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:52:49,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:52:49,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:52:49,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:52:49,181 INFO L87 Difference]: Start difference. First operand 1801 states and 3242 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2024-12-02 13:52:49,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:49,645 INFO L93 Difference]: Finished difference Result 2032 states and 3610 transitions. [2024-12-02 13:52:49,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:52:49,646 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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 92 [2024-12-02 13:52:49,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:49,651 INFO L225 Difference]: With dead ends: 2032 [2024-12-02 13:52:49,652 INFO L226 Difference]: Without dead ends: 1803 [2024-12-02 13:52:49,652 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-12-02 13:52:49,653 INFO L435 NwaCegarLoop]: 1596 mSDtfsCounter, 10647 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10647 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:52:49,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10647 Valid, 2278 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:52:49,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2024-12-02 13:52:49,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1801. [2024-12-02 13:52:49,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1799 states have (on average 1.8010005558643691) internal successors, (3240), 1800 states have internal predecessors, (3240), 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) [2024-12-02 13:52:49,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 3240 transitions. [2024-12-02 13:52:49,682 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 3240 transitions. Word has length 92 [2024-12-02 13:52:49,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:52:49,683 INFO L471 AbstractCegarLoop]: Abstraction has 1801 states and 3240 transitions. [2024-12-02 13:52:49,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 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) [2024-12-02 13:52:49,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 3240 transitions. [2024-12-02 13:52:49,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 13:52:49,712 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:49,712 INFO L218 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] [2024-12-02 13:52:49,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 13:52:49,712 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:49,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:49,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1566925479, now seen corresponding path program 1 times [2024-12-02 13:52:49,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:52:49,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752356915] [2024-12-02 13:52:49,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:49,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:52:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:50,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:52:50,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:52:50,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752356915] [2024-12-02 13:52:50,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752356915] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:52:50,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:52:50,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:52:50,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810627705] [2024-12-02 13:52:50,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:50,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:52:50,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:52:50,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:52:50,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:52:50,034 INFO L87 Difference]: Start difference. First operand 1801 states and 3240 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:52:50,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:50,073 INFO L93 Difference]: Finished difference Result 1809 states and 3249 transitions. [2024-12-02 13:52:50,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:52:50,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-12-02 13:52:50,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:50,079 INFO L225 Difference]: With dead ends: 1809 [2024-12-02 13:52:50,079 INFO L226 Difference]: Without dead ends: 1807 [2024-12-02 13:52:50,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:52:50,080 INFO L435 NwaCegarLoop]: 1603 mSDtfsCounter, 0 mSDsluCounter, 4800 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6403 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:52:50,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6403 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:52:50,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2024-12-02 13:52:50,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1807. [2024-12-02 13:52:50,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1807 states, 1805 states have (on average 1.7977839335180055) internal successors, (3245), 1806 states have internal predecessors, (3245), 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) [2024-12-02 13:52:50,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 3245 transitions. [2024-12-02 13:52:50,115 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 3245 transitions. Word has length 93 [2024-12-02 13:52:50,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:52:50,115 INFO L471 AbstractCegarLoop]: Abstraction has 1807 states and 3245 transitions. [2024-12-02 13:52:50,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:52:50,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 3245 transitions. [2024-12-02 13:52:50,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 13:52:50,116 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:50,116 INFO L218 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] [2024-12-02 13:52:50,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 13:52:50,117 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:50,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:50,117 INFO L85 PathProgramCache]: Analyzing trace with hash -401487589, now seen corresponding path program 1 times [2024-12-02 13:52:50,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:52:50,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147784132] [2024-12-02 13:52:50,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:50,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:52:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:50,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:52:50,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:52:50,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147784132] [2024-12-02 13:52:50,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147784132] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:52:50,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:52:50,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:52:50,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647992056] [2024-12-02 13:52:50,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:50,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:52:50,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:52:50,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:52:50,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:50,222 INFO L87 Difference]: Start difference. First operand 1807 states and 3245 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-12-02 13:52:50,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:50,263 INFO L93 Difference]: Finished difference Result 2261 states and 3957 transitions. [2024-12-02 13:52:50,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:52:50,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2024-12-02 13:52:50,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:50,270 INFO L225 Difference]: With dead ends: 2261 [2024-12-02 13:52:50,270 INFO L226 Difference]: Without dead ends: 2026 [2024-12-02 13:52:50,271 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:50,272 INFO L435 NwaCegarLoop]: 1683 mSDtfsCounter, 1527 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:52:50,272 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 1788 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:52:50,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2024-12-02 13:52:50,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 2024. [2024-12-02 13:52:50,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2024 states, 2022 states have (on average 1.771513353115727) internal successors, (3582), 2023 states have internal predecessors, (3582), 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) [2024-12-02 13:52:50,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2024 states to 2024 states and 3582 transitions. [2024-12-02 13:52:50,315 INFO L78 Accepts]: Start accepts. Automaton has 2024 states and 3582 transitions. Word has length 94 [2024-12-02 13:52:50,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:52:50,315 INFO L471 AbstractCegarLoop]: Abstraction has 2024 states and 3582 transitions. [2024-12-02 13:52:50,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-12-02 13:52:50,316 INFO L276 IsEmpty]: Start isEmpty. Operand 2024 states and 3582 transitions. [2024-12-02 13:52:50,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 13:52:50,317 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:50,317 INFO L218 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] [2024-12-02 13:52:50,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 13:52:50,317 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:50,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:50,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1540581915, now seen corresponding path program 1 times [2024-12-02 13:52:50,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:52:50,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333337828] [2024-12-02 13:52:50,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:50,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:52:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:50,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:52:50,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:52:50,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333337828] [2024-12-02 13:52:50,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333337828] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:52:50,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:52:50,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:52:50,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186031574] [2024-12-02 13:52:50,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:50,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:52:50,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:52:50,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:52:50,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:50,421 INFO L87 Difference]: Start difference. First operand 2024 states and 3582 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-12-02 13:52:50,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:50,467 INFO L93 Difference]: Finished difference Result 2896 states and 4940 transitions. [2024-12-02 13:52:50,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:52:50,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2024-12-02 13:52:50,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:50,475 INFO L225 Difference]: With dead ends: 2896 [2024-12-02 13:52:50,475 INFO L226 Difference]: Without dead ends: 2444 [2024-12-02 13:52:50,476 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:50,477 INFO L435 NwaCegarLoop]: 1681 mSDtfsCounter, 1525 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:52:50,477 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 1790 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:52:50,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2444 states. [2024-12-02 13:52:50,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2444 to 2442. [2024-12-02 13:52:50,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2442 states, 2440 states have (on average 1.7311475409836066) internal successors, (4224), 2441 states have internal predecessors, (4224), 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) [2024-12-02 13:52:50,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2442 states to 2442 states and 4224 transitions. [2024-12-02 13:52:50,534 INFO L78 Accepts]: Start accepts. Automaton has 2442 states and 4224 transitions. Word has length 94 [2024-12-02 13:52:50,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:52:50,534 INFO L471 AbstractCegarLoop]: Abstraction has 2442 states and 4224 transitions. [2024-12-02 13:52:50,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-12-02 13:52:50,534 INFO L276 IsEmpty]: Start isEmpty. Operand 2442 states and 4224 transitions. [2024-12-02 13:52:50,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 13:52:50,535 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:50,536 INFO L218 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] [2024-12-02 13:52:50,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 13:52:50,536 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:50,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:50,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1967352859, now seen corresponding path program 1 times [2024-12-02 13:52:50,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:52:50,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564647349] [2024-12-02 13:52:50,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:50,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:52:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:50,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:52:50,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:52:50,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564647349] [2024-12-02 13:52:50,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564647349] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:52:50,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:52:50,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:52:50,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032341252] [2024-12-02 13:52:50,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:50,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:52:50,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:52:50,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:52:50,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:50,636 INFO L87 Difference]: Start difference. First operand 2442 states and 4224 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-12-02 13:52:50,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:50,681 INFO L93 Difference]: Finished difference Result 4118 states and 6810 transitions. [2024-12-02 13:52:50,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:52:50,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2024-12-02 13:52:50,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:50,692 INFO L225 Difference]: With dead ends: 4118 [2024-12-02 13:52:50,692 INFO L226 Difference]: Without dead ends: 3248 [2024-12-02 13:52:50,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:50,694 INFO L435 NwaCegarLoop]: 1669 mSDtfsCounter, 1521 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:52:50,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 1786 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:52:50,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3248 states. [2024-12-02 13:52:50,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3248 to 3246. [2024-12-02 13:52:50,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3246 states, 3244 states have (on average 1.6781750924784218) internal successors, (5444), 3245 states have internal predecessors, (5444), 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) [2024-12-02 13:52:50,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3246 states to 3246 states and 5444 transitions. [2024-12-02 13:52:50,813 INFO L78 Accepts]: Start accepts. Automaton has 3246 states and 5444 transitions. Word has length 94 [2024-12-02 13:52:50,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:52:50,814 INFO L471 AbstractCegarLoop]: Abstraction has 3246 states and 5444 transitions. [2024-12-02 13:52:50,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-12-02 13:52:50,814 INFO L276 IsEmpty]: Start isEmpty. Operand 3246 states and 5444 transitions. [2024-12-02 13:52:50,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 13:52:50,815 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:50,815 INFO L218 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] [2024-12-02 13:52:50,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 13:52:50,815 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:50,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:50,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1089352421, now seen corresponding path program 1 times [2024-12-02 13:52:50,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:52:50,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265552670] [2024-12-02 13:52:50,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:50,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:52:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:50,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:52:50,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:52:50,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265552670] [2024-12-02 13:52:50,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265552670] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:52:50,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:52:50,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:52:50,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575252717] [2024-12-02 13:52:50,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:50,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:52:50,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:52:50,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:52:50,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:50,930 INFO L87 Difference]: Start difference. First operand 3246 states and 5444 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-12-02 13:52:51,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:51,042 INFO L93 Difference]: Finished difference Result 6466 states and 10358 transitions. [2024-12-02 13:52:51,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:52:51,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2024-12-02 13:52:51,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:51,059 INFO L225 Difference]: With dead ends: 6466 [2024-12-02 13:52:51,059 INFO L226 Difference]: Without dead ends: 4792 [2024-12-02 13:52:51,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:51,062 INFO L435 NwaCegarLoop]: 1667 mSDtfsCounter, 1519 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:52:51,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1788 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:52:51,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4792 states. [2024-12-02 13:52:51,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4792 to 4790. [2024-12-02 13:52:51,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4790 states, 4788 states have (on average 1.6198830409356726) internal successors, (7756), 4789 states have internal predecessors, (7756), 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) [2024-12-02 13:52:51,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4790 states to 4790 states and 7756 transitions. [2024-12-02 13:52:51,235 INFO L78 Accepts]: Start accepts. Automaton has 4790 states and 7756 transitions. Word has length 94 [2024-12-02 13:52:51,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:52:51,235 INFO L471 AbstractCegarLoop]: Abstraction has 4790 states and 7756 transitions. [2024-12-02 13:52:51,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-12-02 13:52:51,235 INFO L276 IsEmpty]: Start isEmpty. Operand 4790 states and 7756 transitions. [2024-12-02 13:52:51,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 13:52:51,236 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:51,237 INFO L218 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] [2024-12-02 13:52:51,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 13:52:51,237 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:51,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:51,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1523888357, now seen corresponding path program 1 times [2024-12-02 13:52:51,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:52:51,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650985542] [2024-12-02 13:52:51,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:51,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:52:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:51,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:52:51,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:52:51,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650985542] [2024-12-02 13:52:51,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650985542] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:52:51,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:52:51,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:52:51,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727694163] [2024-12-02 13:52:51,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:51,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:52:51,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:52:51,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:52:51,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:51,342 INFO L87 Difference]: Start difference. First operand 4790 states and 7756 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-12-02 13:52:51,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:51,453 INFO L93 Difference]: Finished difference Result 10970 states and 17070 transitions. [2024-12-02 13:52:51,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:52:51,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2024-12-02 13:52:51,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:51,472 INFO L225 Difference]: With dead ends: 10970 [2024-12-02 13:52:51,473 INFO L226 Difference]: Without dead ends: 7752 [2024-12-02 13:52:51,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:51,477 INFO L435 NwaCegarLoop]: 1655 mSDtfsCounter, 1515 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:52:51,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1784 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:52:51,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7752 states. [2024-12-02 13:52:51,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7752 to 7750. [2024-12-02 13:52:51,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7750 states, 7748 states have (on average 1.5647909137842024) internal successors, (12124), 7749 states have internal predecessors, (12124), 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) [2024-12-02 13:52:51,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7750 states to 7750 states and 12124 transitions. [2024-12-02 13:52:51,672 INFO L78 Accepts]: Start accepts. Automaton has 7750 states and 12124 transitions. Word has length 94 [2024-12-02 13:52:51,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:52:51,672 INFO L471 AbstractCegarLoop]: Abstraction has 7750 states and 12124 transitions. [2024-12-02 13:52:51,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-12-02 13:52:51,673 INFO L276 IsEmpty]: Start isEmpty. Operand 7750 states and 12124 transitions. [2024-12-02 13:52:51,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 13:52:51,675 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:51,675 INFO L218 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] [2024-12-02 13:52:51,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 13:52:51,675 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:51,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:51,675 INFO L85 PathProgramCache]: Analyzing trace with hash 990146075, now seen corresponding path program 1 times [2024-12-02 13:52:51,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:52:51,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856444273] [2024-12-02 13:52:51,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:51,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:52:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:51,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:52:51,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:52:51,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856444273] [2024-12-02 13:52:51,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856444273] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:52:51,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:52:51,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:52:51,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007703694] [2024-12-02 13:52:51,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:51,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:52:51,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:52:51,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:52:51,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:51,765 INFO L87 Difference]: Start difference. First operand 7750 states and 12124 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-12-02 13:52:52,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:52,004 INFO L93 Difference]: Finished difference Result 19594 states and 29726 transitions. [2024-12-02 13:52:52,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:52:52,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2024-12-02 13:52:52,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:52,035 INFO L225 Difference]: With dead ends: 19594 [2024-12-02 13:52:52,035 INFO L226 Difference]: Without dead ends: 13416 [2024-12-02 13:52:52,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:52,043 INFO L435 NwaCegarLoop]: 1665 mSDtfsCounter, 1517 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:52:52,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1790 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:52:52,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13416 states. [2024-12-02 13:52:52,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13416 to 13414. [2024-12-02 13:52:52,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13414 states, 13412 states have (on average 1.517148821950492) internal successors, (20348), 13413 states have internal predecessors, (20348), 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) [2024-12-02 13:52:52,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13414 states to 13414 states and 20348 transitions. [2024-12-02 13:52:52,379 INFO L78 Accepts]: Start accepts. Automaton has 13414 states and 20348 transitions. Word has length 94 [2024-12-02 13:52:52,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:52:52,379 INFO L471 AbstractCegarLoop]: Abstraction has 13414 states and 20348 transitions. [2024-12-02 13:52:52,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-12-02 13:52:52,379 INFO L276 IsEmpty]: Start isEmpty. Operand 13414 states and 20348 transitions. [2024-12-02 13:52:52,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 13:52:52,380 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:52,380 INFO L218 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] [2024-12-02 13:52:52,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 13:52:52,381 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:52,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:52,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1703496475, now seen corresponding path program 1 times [2024-12-02 13:52:52,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:52:52,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398235320] [2024-12-02 13:52:52,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:52,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:52:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:52,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:52:52,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:52:52,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398235320] [2024-12-02 13:52:52,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398235320] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:52:52,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:52:52,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:52:52,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079419833] [2024-12-02 13:52:52,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:52,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:52:52,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:52:52,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:52:52,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:52,463 INFO L87 Difference]: Start difference. First operand 13414 states and 20348 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-12-02 13:52:52,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:52,872 INFO L93 Difference]: Finished difference Result 36074 states and 53502 transitions. [2024-12-02 13:52:52,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:52:52,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2024-12-02 13:52:52,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:52,927 INFO L225 Difference]: With dead ends: 36074 [2024-12-02 13:52:52,927 INFO L226 Difference]: Without dead ends: 24232 [2024-12-02 13:52:52,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:52,940 INFO L435 NwaCegarLoop]: 1679 mSDtfsCounter, 1523 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:52:52,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1792 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:52:52,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24232 states. [2024-12-02 13:52:53,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24232 to 24230. [2024-12-02 13:52:53,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24230 states, 24228 states have (on average 1.4764735017335315) internal successors, (35772), 24229 states have internal predecessors, (35772), 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) [2024-12-02 13:52:53,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24230 states to 24230 states and 35772 transitions. [2024-12-02 13:52:53,454 INFO L78 Accepts]: Start accepts. Automaton has 24230 states and 35772 transitions. Word has length 94 [2024-12-02 13:52:53,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:52:53,454 INFO L471 AbstractCegarLoop]: Abstraction has 24230 states and 35772 transitions. [2024-12-02 13:52:53,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-12-02 13:52:53,454 INFO L276 IsEmpty]: Start isEmpty. Operand 24230 states and 35772 transitions. [2024-12-02 13:52:53,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 13:52:53,455 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:53,455 INFO L218 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, 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] [2024-12-02 13:52:53,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 13:52:53,456 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:53,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:53,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1603193205, now seen corresponding path program 1 times [2024-12-02 13:52:53,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:52:53,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329319610] [2024-12-02 13:52:53,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:53,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:52:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:53,594 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:52:53,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:52:53,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329319610] [2024-12-02 13:52:53,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329319610] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:52:53,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:52:53,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:52:53,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481921648] [2024-12-02 13:52:53,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:53,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:52:53,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:52:53,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:52:53,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:52:53,596 INFO L87 Difference]: Start difference. First operand 24230 states and 35772 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 13:52:58,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:58,668 INFO L93 Difference]: Finished difference Result 27995 states and 42760 transitions. [2024-12-02 13:52:58,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:52:58,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2024-12-02 13:52:58,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:58,702 INFO L225 Difference]: With dead ends: 27995 [2024-12-02 13:52:58,702 INFO L226 Difference]: Without dead ends: 26491 [2024-12-02 13:52:58,706 INFO L434 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 [2024-12-02 13:52:58,706 INFO L435 NwaCegarLoop]: 348 mSDtfsCounter, 2645 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 3612 mSolverCounterSat, 1529 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2645 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 5141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1529 IncrementalHoareTripleChecker+Valid, 3612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:52:58,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2645 Valid, 364 Invalid, 5141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1529 Valid, 3612 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-12-02 13:52:58,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26491 states. [2024-12-02 13:52:59,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26491 to 26483. [2024-12-02 13:52:59,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26483 states, 26481 states have (on average 1.472678524224916) internal successors, (38998), 26482 states have internal predecessors, (38998), 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) [2024-12-02 13:52:59,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26483 states to 26483 states and 38998 transitions. [2024-12-02 13:52:59,193 INFO L78 Accepts]: Start accepts. Automaton has 26483 states and 38998 transitions. Word has length 95 [2024-12-02 13:52:59,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:52:59,193 INFO L471 AbstractCegarLoop]: Abstraction has 26483 states and 38998 transitions. [2024-12-02 13:52:59,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 13:52:59,193 INFO L276 IsEmpty]: Start isEmpty. Operand 26483 states and 38998 transitions. [2024-12-02 13:52:59,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 13:52:59,193 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:59,194 INFO L218 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] [2024-12-02 13:52:59,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 13:52:59,194 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:59,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:59,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1087415530, now seen corresponding path program 1 times [2024-12-02 13:52:59,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:52:59,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250233061] [2024-12-02 13:52:59,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:59,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:52:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:59,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:52:59,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:52:59,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250233061] [2024-12-02 13:52:59,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250233061] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:52:59,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:52:59,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:52:59,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586993270] [2024-12-02 13:52:59,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:59,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:52:59,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:52:59,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:52:59,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:59,266 INFO L87 Difference]: Start difference. First operand 26483 states and 38998 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2024-12-02 13:52:59,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:59,754 INFO L93 Difference]: Finished difference Result 50042 states and 73564 transitions. [2024-12-02 13:52:59,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:52:59,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 96 [2024-12-02 13:52:59,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:59,798 INFO L225 Difference]: With dead ends: 50042 [2024-12-02 13:52:59,798 INFO L226 Difference]: Without dead ends: 37495 [2024-12-02 13:52:59,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:59,811 INFO L435 NwaCegarLoop]: 1688 mSDtfsCounter, 1526 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:52:59,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:52:59,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37495 states. [2024-12-02 13:53:00,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37495 to 37493. [2024-12-02 13:53:00,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37493 states, 37491 states have (on average 1.4601904457069697) internal successors, (54744), 37492 states have internal predecessors, (54744), 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) [2024-12-02 13:53:00,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37493 states to 37493 states and 54744 transitions. [2024-12-02 13:53:00,567 INFO L78 Accepts]: Start accepts. Automaton has 37493 states and 54744 transitions. Word has length 96 [2024-12-02 13:53:00,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:00,567 INFO L471 AbstractCegarLoop]: Abstraction has 37493 states and 54744 transitions. [2024-12-02 13:53:00,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2024-12-02 13:53:00,567 INFO L276 IsEmpty]: Start isEmpty. Operand 37493 states and 54744 transitions. [2024-12-02 13:53:00,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 13:53:00,567 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:00,567 INFO L218 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, 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] [2024-12-02 13:53:00,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 13:53:00,568 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:00,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:00,568 INFO L85 PathProgramCache]: Analyzing trace with hash -2006951676, now seen corresponding path program 1 times [2024-12-02 13:53:00,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:00,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809958419] [2024-12-02 13:53:00,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:00,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:00,683 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-02 13:53:00,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:00,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809958419] [2024-12-02 13:53:00,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809958419] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:00,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:00,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:53:00,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254995159] [2024-12-02 13:53:00,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:00,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:53:00,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:00,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:53:00,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:53:00,685 INFO L87 Difference]: Start difference. First operand 37493 states and 54744 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 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) [2024-12-02 13:53:04,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:04,202 INFO L93 Difference]: Finished difference Result 44254 states and 66050 transitions. [2024-12-02 13:53:04,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:53:04,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 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 101 [2024-12-02 13:53:04,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:04,241 INFO L225 Difference]: With dead ends: 44254 [2024-12-02 13:53:04,241 INFO L226 Difference]: Without dead ends: 40497 [2024-12-02 13:53:04,248 INFO L434 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 [2024-12-02 13:53:04,248 INFO L435 NwaCegarLoop]: 682 mSDtfsCounter, 892 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2289 mSolverCounterSat, 643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 2932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 2289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:04,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 689 Invalid, 2932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 2289 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-12-02 13:53:04,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40497 states. [2024-12-02 13:53:05,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40497 to 40497. [2024-12-02 13:53:05,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40497 states, 40495 states have (on average 1.4450179034448698) internal successors, (58516), 40496 states have internal predecessors, (58516), 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) [2024-12-02 13:53:05,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40497 states to 40497 states and 58516 transitions. [2024-12-02 13:53:05,342 INFO L78 Accepts]: Start accepts. Automaton has 40497 states and 58516 transitions. Word has length 101 [2024-12-02 13:53:05,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:05,343 INFO L471 AbstractCegarLoop]: Abstraction has 40497 states and 58516 transitions. [2024-12-02 13:53:05,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 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) [2024-12-02 13:53:05,343 INFO L276 IsEmpty]: Start isEmpty. Operand 40497 states and 58516 transitions. [2024-12-02 13:53:05,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 13:53:05,350 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:05,350 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:53:05,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 13:53:05,350 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:05,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:05,351 INFO L85 PathProgramCache]: Analyzing trace with hash 54573310, now seen corresponding path program 1 times [2024-12-02 13:53:05,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:05,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031431705] [2024-12-02 13:53:05,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:05,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:05,632 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 13:53:05,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:05,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031431705] [2024-12-02 13:53:05,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031431705] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:05,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:05,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:53:05,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615541639] [2024-12-02 13:53:05,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:05,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:53:05,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:05,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:53:05,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:53:05,634 INFO L87 Difference]: Start difference. First operand 40497 states and 58516 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 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) [2024-12-02 13:53:09,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:09,345 INFO L93 Difference]: Finished difference Result 316611 states and 457117 transitions. [2024-12-02 13:53:09,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:53:09,346 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-12-02 13:53:09,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:09,686 INFO L225 Difference]: With dead ends: 316611 [2024-12-02 13:53:09,686 INFO L226 Difference]: Without dead ends: 282945 [2024-12-02 13:53:09,745 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:53:09,746 INFO L435 NwaCegarLoop]: 1706 mSDtfsCounter, 11840 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11840 SdHoareTripleChecker+Valid, 4973 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:09,746 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11840 Valid, 4973 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:53:09,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282945 states. [2024-12-02 13:53:12,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282945 to 74161. [2024-12-02 13:53:12,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74161 states, 74159 states have (on average 1.4397713022020253) internal successors, (106772), 74160 states have internal predecessors, (106772), 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) [2024-12-02 13:53:12,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74161 states to 74161 states and 106772 transitions. [2024-12-02 13:53:12,326 INFO L78 Accepts]: Start accepts. Automaton has 74161 states and 106772 transitions. Word has length 119 [2024-12-02 13:53:12,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:12,326 INFO L471 AbstractCegarLoop]: Abstraction has 74161 states and 106772 transitions. [2024-12-02 13:53:12,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 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) [2024-12-02 13:53:12,326 INFO L276 IsEmpty]: Start isEmpty. Operand 74161 states and 106772 transitions. [2024-12-02 13:53:12,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 13:53:12,331 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:12,331 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:53:12,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 13:53:12,331 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:12,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:12,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1996642814, now seen corresponding path program 1 times [2024-12-02 13:53:12,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:12,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621957900] [2024-12-02 13:53:12,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:12,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:12,530 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 13:53:12,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:12,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621957900] [2024-12-02 13:53:12,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621957900] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:12,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:12,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:53:12,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165847931] [2024-12-02 13:53:12,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:12,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:53:12,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:12,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:53:12,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:53:12,532 INFO L87 Difference]: Start difference. First operand 74161 states and 106772 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-12-02 13:53:18,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:18,960 INFO L93 Difference]: Finished difference Result 350275 states and 505373 transitions. [2024-12-02 13:53:18,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:53:18,961 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-12-02 13:53:18,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:19,298 INFO L225 Difference]: With dead ends: 350275 [2024-12-02 13:53:19,298 INFO L226 Difference]: Without dead ends: 316609 [2024-12-02 13:53:19,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:53:19,356 INFO L435 NwaCegarLoop]: 1703 mSDtfsCounter, 11882 mSDsluCounter, 3136 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11882 SdHoareTripleChecker+Valid, 4839 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:19,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11882 Valid, 4839 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:53:19,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316609 states. [2024-12-02 13:53:23,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316609 to 124721. [2024-12-02 13:53:23,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124721 states, 124719 states have (on average 1.4339114329011617) internal successors, (178836), 124720 states have internal predecessors, (178836), 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) [2024-12-02 13:53:23,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124721 states to 124721 states and 178836 transitions. [2024-12-02 13:53:23,436 INFO L78 Accepts]: Start accepts. Automaton has 124721 states and 178836 transitions. Word has length 119 [2024-12-02 13:53:23,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:23,436 INFO L471 AbstractCegarLoop]: Abstraction has 124721 states and 178836 transitions. [2024-12-02 13:53:23,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-12-02 13:53:23,436 INFO L276 IsEmpty]: Start isEmpty. Operand 124721 states and 178836 transitions. [2024-12-02 13:53:23,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 13:53:23,441 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:23,441 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:53:23,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 13:53:23,441 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:23,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:23,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1871553538, now seen corresponding path program 1 times [2024-12-02 13:53:23,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:23,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173257449] [2024-12-02 13:53:23,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:23,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:23,629 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 13:53:23,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:23,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173257449] [2024-12-02 13:53:23,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173257449] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:23,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:23,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:53:23,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543491797] [2024-12-02 13:53:23,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:23,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:53:23,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:23,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:53:23,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:53:23,630 INFO L87 Difference]: Start difference. First operand 124721 states and 178836 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 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) [2024-12-02 13:53:30,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:30,917 INFO L93 Difference]: Finished difference Result 383939 states and 553629 transitions. [2024-12-02 13:53:30,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:53:30,917 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-12-02 13:53:30,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:31,285 INFO L225 Difference]: With dead ends: 383939 [2024-12-02 13:53:31,285 INFO L226 Difference]: Without dead ends: 350273 [2024-12-02 13:53:31,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:53:31,346 INFO L435 NwaCegarLoop]: 1700 mSDtfsCounter, 11959 mSDsluCounter, 3100 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11959 SdHoareTripleChecker+Valid, 4800 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:31,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11959 Valid, 4800 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:53:31,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350273 states. [2024-12-02 13:53:35,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350273 to 158385. [2024-12-02 13:53:36,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158385 states, 158383 states have (on average 1.4338154978754032) internal successors, (227092), 158384 states have internal predecessors, (227092), 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) [2024-12-02 13:53:36,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158385 states to 158385 states and 227092 transitions. [2024-12-02 13:53:36,396 INFO L78 Accepts]: Start accepts. Automaton has 158385 states and 227092 transitions. Word has length 119 [2024-12-02 13:53:36,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:36,397 INFO L471 AbstractCegarLoop]: Abstraction has 158385 states and 227092 transitions. [2024-12-02 13:53:36,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 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) [2024-12-02 13:53:36,397 INFO L276 IsEmpty]: Start isEmpty. Operand 158385 states and 227092 transitions. [2024-12-02 13:53:36,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 13:53:36,406 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:36,406 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:53:36,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 13:53:36,406 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:36,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:36,407 INFO L85 PathProgramCache]: Analyzing trace with hash -633291522, now seen corresponding path program 1 times [2024-12-02 13:53:36,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:36,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101336422] [2024-12-02 13:53:36,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:36,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:36,803 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 13:53:36,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:36,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101336422] [2024-12-02 13:53:36,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101336422] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:36,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:36,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:53:36,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957416207] [2024-12-02 13:53:36,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:36,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:53:36,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:36,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:53:36,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:53:36,807 INFO L87 Difference]: Start difference. First operand 158385 states and 227092 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 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) [2024-12-02 13:53:45,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:53:45,838 INFO L93 Difference]: Finished difference Result 417603 states and 601885 transitions. [2024-12-02 13:53:45,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:53:45,839 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-12-02 13:53:45,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:53:46,267 INFO L225 Difference]: With dead ends: 417603 [2024-12-02 13:53:46,267 INFO L226 Difference]: Without dead ends: 383937 [2024-12-02 13:53:46,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:53:46,340 INFO L435 NwaCegarLoop]: 1697 mSDtfsCounter, 12181 mSDsluCounter, 3037 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12181 SdHoareTripleChecker+Valid, 4734 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:53:46,340 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12181 Valid, 4734 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:53:46,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383937 states. [2024-12-02 13:53:53,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383937 to 192049. [2024-12-02 13:53:53,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192049 states, 192047 states have (on average 1.4337531958322702) internal successors, (275348), 192048 states have internal predecessors, (275348), 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) [2024-12-02 13:53:53,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192049 states to 192049 states and 275348 transitions. [2024-12-02 13:53:53,395 INFO L78 Accepts]: Start accepts. Automaton has 192049 states and 275348 transitions. Word has length 119 [2024-12-02 13:53:53,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:53:53,396 INFO L471 AbstractCegarLoop]: Abstraction has 192049 states and 275348 transitions. [2024-12-02 13:53:53,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 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) [2024-12-02 13:53:53,396 INFO L276 IsEmpty]: Start isEmpty. Operand 192049 states and 275348 transitions. [2024-12-02 13:53:53,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 13:53:53,404 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:53:53,404 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:53:53,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 13:53:53,404 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:53:53,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:53:53,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1067827458, now seen corresponding path program 1 times [2024-12-02 13:53:53,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:53:53,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737672573] [2024-12-02 13:53:53,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:53:53,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:53:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:53:53,587 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 13:53:53,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:53:53,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737672573] [2024-12-02 13:53:53,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737672573] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:53:53,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:53:53,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:53:53,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794462231] [2024-12-02 13:53:53,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:53:53,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:53:53,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:53:53,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:53:53,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:53:53,589 INFO L87 Difference]: Start difference. First operand 192049 states and 275348 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) [2024-12-02 13:54:02,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:54:02,956 INFO L93 Difference]: Finished difference Result 451267 states and 650141 transitions. [2024-12-02 13:54:02,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:54:02,956 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-12-02 13:54:02,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:54:03,448 INFO L225 Difference]: With dead ends: 451267 [2024-12-02 13:54:03,448 INFO L226 Difference]: Without dead ends: 417601 [2024-12-02 13:54:03,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:54:03,525 INFO L435 NwaCegarLoop]: 1696 mSDtfsCounter, 12018 mSDsluCounter, 3128 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12018 SdHoareTripleChecker+Valid, 4824 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:54:03,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12018 Valid, 4824 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:54:03,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417601 states. [2024-12-02 13:54:10,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417601 to 225713. [2024-12-02 13:54:10,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225713 states, 225711 states have (on average 1.433709478049364) internal successors, (323604), 225712 states have internal predecessors, (323604), 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) [2024-12-02 13:54:10,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225713 states to 225713 states and 323604 transitions. [2024-12-02 13:54:10,752 INFO L78 Accepts]: Start accepts. Automaton has 225713 states and 323604 transitions. Word has length 119 [2024-12-02 13:54:10,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:54:10,752 INFO L471 AbstractCegarLoop]: Abstraction has 225713 states and 323604 transitions. [2024-12-02 13:54:10,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) [2024-12-02 13:54:10,752 INFO L276 IsEmpty]: Start isEmpty. Operand 225713 states and 323604 transitions. [2024-12-02 13:54:10,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 13:54:10,758 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:54:10,758 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:54:10,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 13:54:10,758 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:54:10,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:10,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1446206974, now seen corresponding path program 1 times [2024-12-02 13:54:10,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:54:10,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797075533] [2024-12-02 13:54:10,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:10,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:10,983 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-02 13:54:10,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:54:10,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797075533] [2024-12-02 13:54:10,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797075533] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:54:10,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:54:10,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:54:10,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929267330] [2024-12-02 13:54:10,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:54:10,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:54:10,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:54:10,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:54:10,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:54:10,984 INFO L87 Difference]: Start difference. First operand 225713 states and 323604 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 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) [2024-12-02 13:54:22,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:54:22,993 INFO L93 Difference]: Finished difference Result 484931 states and 698397 transitions. [2024-12-02 13:54:22,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:54:22,994 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-12-02 13:54:22,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:54:23,570 INFO L225 Difference]: With dead ends: 484931 [2024-12-02 13:54:23,570 INFO L226 Difference]: Without dead ends: 451265 [2024-12-02 13:54:23,654 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:54:23,655 INFO L435 NwaCegarLoop]: 1702 mSDtfsCounter, 11787 mSDsluCounter, 3279 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11787 SdHoareTripleChecker+Valid, 4981 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:54:23,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11787 Valid, 4981 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:54:23,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451265 states. [2024-12-02 13:54:32,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451265 to 259377. [2024-12-02 13:54:32,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259377 states, 259375 states have (on average 1.433677108433735) internal successors, (371860), 259376 states have internal predecessors, (371860), 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) [2024-12-02 13:54:32,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259377 states to 259377 states and 371860 transitions. [2024-12-02 13:54:32,531 INFO L78 Accepts]: Start accepts. Automaton has 259377 states and 371860 transitions. Word has length 119 [2024-12-02 13:54:32,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:54:32,531 INFO L471 AbstractCegarLoop]: Abstraction has 259377 states and 371860 transitions. [2024-12-02 13:54:32,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 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) [2024-12-02 13:54:32,531 INFO L276 IsEmpty]: Start isEmpty. Operand 259377 states and 371860 transitions. [2024-12-02 13:54:32,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 13:54:32,536 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:54:32,536 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:54:32,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 13:54:32,536 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:54:32,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:32,536 INFO L85 PathProgramCache]: Analyzing trace with hash -2135409922, now seen corresponding path program 1 times [2024-12-02 13:54:32,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:54:32,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188214035] [2024-12-02 13:54:32,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:32,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:32,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:32,896 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 13:54:32,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:54:32,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188214035] [2024-12-02 13:54:32,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188214035] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:54:32,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:54:32,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:54:32,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879592895] [2024-12-02 13:54:32,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:54:32,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:54:32,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:54:32,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:54:32,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:54:32,897 INFO L87 Difference]: Start difference. First operand 259377 states and 371860 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 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) [2024-12-02 13:54:45,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:54:45,277 INFO L93 Difference]: Finished difference Result 518595 states and 746653 transitions. [2024-12-02 13:54:45,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:54:45,277 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-12-02 13:54:45,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:54:45,805 INFO L225 Difference]: With dead ends: 518595 [2024-12-02 13:54:45,805 INFO L226 Difference]: Without dead ends: 484929 [2024-12-02 13:54:45,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:54:45,883 INFO L435 NwaCegarLoop]: 1705 mSDtfsCounter, 11754 mSDsluCounter, 3517 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11754 SdHoareTripleChecker+Valid, 5222 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:54:45,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11754 Valid, 5222 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:54:46,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484929 states. [2024-12-02 13:54:55,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484929 to 293041. [2024-12-02 13:54:55,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293041 states, 293039 states have (on average 1.4336521759902265) internal successors, (420116), 293040 states have internal predecessors, (420116), 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) [2024-12-02 13:54:56,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293041 states to 293041 states and 420116 transitions. [2024-12-02 13:54:56,097 INFO L78 Accepts]: Start accepts. Automaton has 293041 states and 420116 transitions. Word has length 119 [2024-12-02 13:54:56,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:54:56,097 INFO L471 AbstractCegarLoop]: Abstraction has 293041 states and 420116 transitions. [2024-12-02 13:54:56,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 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) [2024-12-02 13:54:56,097 INFO L276 IsEmpty]: Start isEmpty. Operand 293041 states and 420116 transitions. [2024-12-02 13:54:56,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 13:54:56,105 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:54:56,105 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:54:56,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 13:54:56,105 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:54:56,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:56,105 INFO L85 PathProgramCache]: Analyzing trace with hash -443851434, now seen corresponding path program 1 times [2024-12-02 13:54:56,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:54:56,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779904108] [2024-12-02 13:54:56,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:56,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:56,231 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:54:56,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:54:56,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779904108] [2024-12-02 13:54:56,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779904108] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:54:56,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:54:56,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:54:56,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244278656] [2024-12-02 13:54:56,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:54:56,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:54:56,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:54:56,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:54:56,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:54:56,232 INFO L87 Difference]: Start difference. First operand 293041 states and 420116 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:55:01,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:55:01,809 INFO L93 Difference]: Finished difference Result 493263 states and 709553 transitions. [2024-12-02 13:55:01,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:55:01,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-12-02 13:55:01,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:55:02,056 INFO L225 Difference]: With dead ends: 493263 [2024-12-02 13:55:02,056 INFO L226 Difference]: Without dead ends: 207053 [2024-12-02 13:55:02,153 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:55:02,154 INFO L435 NwaCegarLoop]: 1670 mSDtfsCounter, 74 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 3261 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:55:02,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 3261 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:55:02,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207053 states. [2024-12-02 13:55:08,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207053 to 207051. [2024-12-02 13:55:08,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207051 states, 207049 states have (on average 1.4350902443382967) internal successors, (297134), 207050 states have internal predecessors, (297134), 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) [2024-12-02 13:55:09,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207051 states to 207051 states and 297134 transitions. [2024-12-02 13:55:09,055 INFO L78 Accepts]: Start accepts. Automaton has 207051 states and 297134 transitions. Word has length 121 [2024-12-02 13:55:09,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:55:09,055 INFO L471 AbstractCegarLoop]: Abstraction has 207051 states and 297134 transitions. [2024-12-02 13:55:09,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:55:09,055 INFO L276 IsEmpty]: Start isEmpty. Operand 207051 states and 297134 transitions. [2024-12-02 13:55:09,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 13:55:09,059 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:55:09,059 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:55:09,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 13:55:09,060 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:55:09,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:55:09,060 INFO L85 PathProgramCache]: Analyzing trace with hash -899555783, now seen corresponding path program 1 times [2024-12-02 13:55:09,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:55:09,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301911350] [2024-12-02 13:55:09,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:55:09,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:55:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:55:09,249 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 13:55:09,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:55:09,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301911350] [2024-12-02 13:55:09,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301911350] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:55:09,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:55:09,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 13:55:09,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798807449] [2024-12-02 13:55:09,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:55:09,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:55:09,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:55:09,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:55:09,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:55:09,251 INFO L87 Difference]: Start difference. First operand 207051 states and 297134 transitions. Second operand has 10 states, 10 states have (on average 12.0) internal successors, (120), 10 states have internal predecessors, (120), 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) [2024-12-02 13:55:20,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:55:20,058 INFO L93 Difference]: Finished difference Result 395485 states and 569527 transitions. [2024-12-02 13:55:20,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:55:20,059 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 10 states have internal predecessors, (120), 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 121 [2024-12-02 13:55:20,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:55:20,577 INFO L225 Difference]: With dead ends: 395485 [2024-12-02 13:55:20,577 INFO L226 Difference]: Without dead ends: 371931 [2024-12-02 13:55:20,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:55:20,611 INFO L435 NwaCegarLoop]: 1695 mSDtfsCounter, 11850 mSDsluCounter, 3642 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11850 SdHoareTripleChecker+Valid, 5337 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:55:20,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11850 Valid, 5337 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:55:20,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371931 states. [2024-12-02 13:55:28,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371931 to 230603. [2024-12-02 13:55:28,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230603 states, 230601 states have (on average 1.4350588245497635) internal successors, (330926), 230602 states have internal predecessors, (330926), 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) [2024-12-02 13:55:28,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230603 states to 230603 states and 330926 transitions. [2024-12-02 13:55:28,706 INFO L78 Accepts]: Start accepts. Automaton has 230603 states and 330926 transitions. Word has length 121 [2024-12-02 13:55:28,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:55:28,706 INFO L471 AbstractCegarLoop]: Abstraction has 230603 states and 330926 transitions. [2024-12-02 13:55:28,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 10 states have internal predecessors, (120), 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) [2024-12-02 13:55:28,706 INFO L276 IsEmpty]: Start isEmpty. Operand 230603 states and 330926 transitions. [2024-12-02 13:55:28,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 13:55:28,711 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:55:28,711 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:55:28,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 13:55:28,711 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:55:28,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:55:28,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1397045798, now seen corresponding path program 1 times [2024-12-02 13:55:28,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:55:28,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145734130] [2024-12-02 13:55:28,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:55:28,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:55:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:55:28,789 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:55:28,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:55:28,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145734130] [2024-12-02 13:55:28,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145734130] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:55:28,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:55:28,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:55:28,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041808222] [2024-12-02 13:55:28,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:55:28,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:55:28,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:55:28,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:55:28,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:55:28,790 INFO L87 Difference]: Start difference. First operand 230603 states and 330926 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:55:32,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:55:32,186 INFO L93 Difference]: Finished difference Result 342479 states and 491440 transitions. [2024-12-02 13:55:32,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:55:32,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2024-12-02 13:55:32,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:55:32,301 INFO L225 Difference]: With dead ends: 342479 [2024-12-02 13:55:32,302 INFO L226 Difference]: Without dead ends: 118733 [2024-12-02 13:55:32,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:55:32,377 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 69 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 3246 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:55:32,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 3246 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:55:32,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118733 states. [2024-12-02 13:55:36,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118733 to 118731. [2024-12-02 13:55:36,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118731 states, 118729 states have (on average 1.425077276823691) internal successors, (169198), 118730 states have internal predecessors, (169198), 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) [2024-12-02 13:55:36,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118731 states to 118731 states and 169198 transitions. [2024-12-02 13:55:36,427 INFO L78 Accepts]: Start accepts. Automaton has 118731 states and 169198 transitions. Word has length 122 [2024-12-02 13:55:36,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:55:36,427 INFO L471 AbstractCegarLoop]: Abstraction has 118731 states and 169198 transitions. [2024-12-02 13:55:36,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:55:36,427 INFO L276 IsEmpty]: Start isEmpty. Operand 118731 states and 169198 transitions. [2024-12-02 13:55:36,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 13:55:36,430 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:55:36,430 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:55:36,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 13:55:36,430 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:55:36,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:55:36,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1061877844, now seen corresponding path program 1 times [2024-12-02 13:55:36,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:55:36,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985931057] [2024-12-02 13:55:36,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:55:36,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:55:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:55:36,509 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:55:36,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:55:36,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985931057] [2024-12-02 13:55:36,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985931057] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:55:36,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:55:36,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:55:36,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708661040] [2024-12-02 13:55:36,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:55:36,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:55:36,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:55:36,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:55:36,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:55:36,510 INFO L87 Difference]: Start difference. First operand 118731 states and 169198 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2024-12-02 13:55:38,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:55:38,044 INFO L93 Difference]: Finished difference Result 174671 states and 248848 transitions. [2024-12-02 13:55:38,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:55:38,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 124 [2024-12-02 13:55:38,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:55:38,102 INFO L225 Difference]: With dead ends: 174671 [2024-12-02 13:55:38,102 INFO L226 Difference]: Without dead ends: 62797 [2024-12-02 13:55:38,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:55:38,149 INFO L435 NwaCegarLoop]: 1656 mSDtfsCounter, 66 mSDsluCounter, 1575 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 3231 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:55:38,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 3231 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:55:38,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62797 states. [2024-12-02 13:55:40,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62797 to 62795. [2024-12-02 13:55:40,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62795 states, 62793 states have (on average 1.4164317678722151) internal successors, (88942), 62794 states have internal predecessors, (88942), 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) [2024-12-02 13:55:40,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62795 states to 62795 states and 88942 transitions. [2024-12-02 13:55:40,254 INFO L78 Accepts]: Start accepts. Automaton has 62795 states and 88942 transitions. Word has length 124 [2024-12-02 13:55:40,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:55:40,254 INFO L471 AbstractCegarLoop]: Abstraction has 62795 states and 88942 transitions. [2024-12-02 13:55:40,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2024-12-02 13:55:40,254 INFO L276 IsEmpty]: Start isEmpty. Operand 62795 states and 88942 transitions. [2024-12-02 13:55:40,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 13:55:40,257 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:55:40,257 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:55:40,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 13:55:40,257 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:55:40,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:55:40,257 INFO L85 PathProgramCache]: Analyzing trace with hash -890972162, now seen corresponding path program 1 times [2024-12-02 13:55:40,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:55:40,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11165298] [2024-12-02 13:55:40,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:55:40,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:55:40,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:55:40,338 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:55:40,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:55:40,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11165298] [2024-12-02 13:55:40,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11165298] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:55:40,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:55:40,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:55:40,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832205927] [2024-12-02 13:55:40,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:55:40,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:55:40,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:55:40,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:55:40,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:55:40,340 INFO L87 Difference]: Start difference. First operand 62795 states and 88942 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2024-12-02 13:55:41,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:55:41,119 INFO L93 Difference]: Finished difference Result 90767 states and 128464 transitions. [2024-12-02 13:55:41,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:55:41,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 126 [2024-12-02 13:55:41,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:55:41,152 INFO L225 Difference]: With dead ends: 90767 [2024-12-02 13:55:41,152 INFO L226 Difference]: Without dead ends: 34829 [2024-12-02 13:55:41,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:55:41,176 INFO L435 NwaCegarLoop]: 1649 mSDtfsCounter, 63 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 3216 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:55:41,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 3216 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:55:41,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34829 states. [2024-12-02 13:55:42,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34829 to 34827. [2024-12-02 13:55:42,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34827 states, 34825 states have (on average 1.4104235463029433) internal successors, (49118), 34826 states have internal predecessors, (49118), 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) [2024-12-02 13:55:42,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34827 states to 34827 states and 49118 transitions. [2024-12-02 13:55:42,069 INFO L78 Accepts]: Start accepts. Automaton has 34827 states and 49118 transitions. Word has length 126 [2024-12-02 13:55:42,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:55:42,070 INFO L471 AbstractCegarLoop]: Abstraction has 34827 states and 49118 transitions. [2024-12-02 13:55:42,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2024-12-02 13:55:42,070 INFO L276 IsEmpty]: Start isEmpty. Operand 34827 states and 49118 transitions. [2024-12-02 13:55:42,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 13:55:42,072 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:55:42,072 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:55:42,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 13:55:42,072 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:55:42,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:55:42,072 INFO L85 PathProgramCache]: Analyzing trace with hash -627878192, now seen corresponding path program 1 times [2024-12-02 13:55:42,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:55:42,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236119933] [2024-12-02 13:55:42,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:55:42,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:55:42,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:55:42,175 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:55:42,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:55:42,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236119933] [2024-12-02 13:55:42,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236119933] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:55:42,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:55:42,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:55:42,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468503212] [2024-12-02 13:55:42,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:55:42,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:55:42,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:55:42,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:55:42,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:55:42,176 INFO L87 Difference]: Start difference. First operand 34827 states and 49118 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2024-12-02 13:55:42,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:55:42,612 INFO L93 Difference]: Finished difference Result 48815 states and 68728 transitions. [2024-12-02 13:55:42,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:55:42,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 128 [2024-12-02 13:55:42,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:55:42,636 INFO L225 Difference]: With dead ends: 48815 [2024-12-02 13:55:42,636 INFO L226 Difference]: Without dead ends: 20845 [2024-12-02 13:55:42,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:55:42,650 INFO L435 NwaCegarLoop]: 1642 mSDtfsCounter, 60 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3201 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:55:42,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3201 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:55:42,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20845 states. [2024-12-02 13:55:43,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20845 to 20843. [2024-12-02 13:55:43,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20843 states, 20841 states have (on average 1.4086656110551317) internal successors, (29358), 20842 states have internal predecessors, (29358), 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) [2024-12-02 13:55:43,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20843 states to 20843 states and 29358 transitions. [2024-12-02 13:55:43,122 INFO L78 Accepts]: Start accepts. Automaton has 20843 states and 29358 transitions. Word has length 128 [2024-12-02 13:55:43,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:55:43,122 INFO L471 AbstractCegarLoop]: Abstraction has 20843 states and 29358 transitions. [2024-12-02 13:55:43,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2024-12-02 13:55:43,123 INFO L276 IsEmpty]: Start isEmpty. Operand 20843 states and 29358 transitions. [2024-12-02 13:55:43,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 13:55:43,124 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:55:43,124 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:55:43,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 13:55:43,124 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:55:43,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:55:43,124 INFO L85 PathProgramCache]: Analyzing trace with hash -823024606, now seen corresponding path program 1 times [2024-12-02 13:55:43,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:55:43,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471483558] [2024-12-02 13:55:43,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:55:43,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:55:43,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:55:43,298 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:55:43,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:55:43,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471483558] [2024-12-02 13:55:43,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471483558] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:55:43,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:55:43,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:55:43,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290552352] [2024-12-02 13:55:43,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:55:43,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:55:43,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:55:43,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:55:43,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:55:43,300 INFO L87 Difference]: Start difference. First operand 20843 states and 29358 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:55:43,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:55:43,512 INFO L93 Difference]: Finished difference Result 27839 states and 39088 transitions. [2024-12-02 13:55:43,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:55:43,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2024-12-02 13:55:43,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:55:43,528 INFO L225 Difference]: With dead ends: 27839 [2024-12-02 13:55:43,528 INFO L226 Difference]: Without dead ends: 13853 [2024-12-02 13:55:43,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:55:43,535 INFO L435 NwaCegarLoop]: 1635 mSDtfsCounter, 57 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 3186 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:55:43,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 3186 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:55:43,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13853 states. [2024-12-02 13:55:43,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13853 to 13851. [2024-12-02 13:55:43,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13851 states, 13849 states have (on average 1.4119431005848797) internal successors, (19554), 13850 states have internal predecessors, (19554), 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) [2024-12-02 13:55:43,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13851 states to 13851 states and 19554 transitions. [2024-12-02 13:55:43,808 INFO L78 Accepts]: Start accepts. Automaton has 13851 states and 19554 transitions. Word has length 130 [2024-12-02 13:55:43,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:55:43,808 INFO L471 AbstractCegarLoop]: Abstraction has 13851 states and 19554 transitions. [2024-12-02 13:55:43,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:55:43,808 INFO L276 IsEmpty]: Start isEmpty. Operand 13851 states and 19554 transitions. [2024-12-02 13:55:43,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 13:55:43,809 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:55:43,809 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:55:43,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 13:55:43,809 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:55:43,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:55:43,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1457987596, now seen corresponding path program 1 times [2024-12-02 13:55:43,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:55:43,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816314048] [2024-12-02 13:55:43,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:55:43,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:55:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:55:43,885 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:55:43,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:55:43,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816314048] [2024-12-02 13:55:43,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816314048] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:55:43,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:55:43,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:55:43,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272754332] [2024-12-02 13:55:43,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:55:43,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:55:43,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:55:43,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:55:43,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:55:43,887 INFO L87 Difference]: Start difference. First operand 13851 states and 19554 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2024-12-02 13:55:44,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:55:44,012 INFO L93 Difference]: Finished difference Result 17351 states and 24382 transitions. [2024-12-02 13:55:44,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:55:44,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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 132 [2024-12-02 13:55:44,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:55:44,025 INFO L225 Difference]: With dead ends: 17351 [2024-12-02 13:55:44,025 INFO L226 Difference]: Without dead ends: 10357 [2024-12-02 13:55:44,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:55:44,030 INFO L435 NwaCegarLoop]: 1628 mSDtfsCounter, 54 mSDsluCounter, 1543 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3171 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:55:44,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 3171 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:55:44,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10357 states. [2024-12-02 13:55:44,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10357 to 10355. [2024-12-02 13:55:44,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10355 states, 10353 states have (on average 1.418912392543224) internal successors, (14690), 10354 states have internal predecessors, (14690), 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) [2024-12-02 13:55:44,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10355 states to 10355 states and 14690 transitions. [2024-12-02 13:55:44,194 INFO L78 Accepts]: Start accepts. Automaton has 10355 states and 14690 transitions. Word has length 132 [2024-12-02 13:55:44,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:55:44,195 INFO L471 AbstractCegarLoop]: Abstraction has 10355 states and 14690 transitions. [2024-12-02 13:55:44,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2024-12-02 13:55:44,195 INFO L276 IsEmpty]: Start isEmpty. Operand 10355 states and 14690 transitions. [2024-12-02 13:55:44,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 13:55:44,195 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:55:44,196 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:55:44,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 13:55:44,196 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:55:44,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:55:44,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1577724486, now seen corresponding path program 1 times [2024-12-02 13:55:44,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:55:44,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685883320] [2024-12-02 13:55:44,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:55:44,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:55:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:55:44,276 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:55:44,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:55:44,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685883320] [2024-12-02 13:55:44,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685883320] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:55:44,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:55:44,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:55:44,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751338266] [2024-12-02 13:55:44,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:55:44,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:55:44,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:55:44,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:55:44,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:55:44,277 INFO L87 Difference]: Start difference. First operand 10355 states and 14690 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:55:44,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:55:44,362 INFO L93 Difference]: Finished difference Result 12107 states and 17086 transitions. [2024-12-02 13:55:44,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:55:44,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2024-12-02 13:55:44,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:55:44,376 INFO L225 Difference]: With dead ends: 12107 [2024-12-02 13:55:44,376 INFO L226 Difference]: Without dead ends: 8609 [2024-12-02 13:55:44,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:55:44,380 INFO L435 NwaCegarLoop]: 1621 mSDtfsCounter, 51 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 3156 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:55:44,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 3156 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:55:44,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8609 states. [2024-12-02 13:55:44,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8609 to 8607. [2024-12-02 13:55:44,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8607 states, 8605 states have (on average 1.4267286461359674) internal successors, (12277), 8606 states have internal predecessors, (12277), 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) [2024-12-02 13:55:44,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8607 states to 8607 states and 12277 transitions. [2024-12-02 13:55:44,497 INFO L78 Accepts]: Start accepts. Automaton has 8607 states and 12277 transitions. Word has length 134 [2024-12-02 13:55:44,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:55:44,498 INFO L471 AbstractCegarLoop]: Abstraction has 8607 states and 12277 transitions. [2024-12-02 13:55:44,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:55:44,498 INFO L276 IsEmpty]: Start isEmpty. Operand 8607 states and 12277 transitions. [2024-12-02 13:55:44,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 13:55:44,498 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:55:44,498 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:55:44,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 13:55:44,499 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:55:44,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:55:44,499 INFO L85 PathProgramCache]: Analyzing trace with hash 682533656, now seen corresponding path program 1 times [2024-12-02 13:55:44,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:55:44,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155187126] [2024-12-02 13:55:44,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:55:44,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:55:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:55:45,346 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:55:45,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:55:45,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155187126] [2024-12-02 13:55:45,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155187126] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:55:45,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622556330] [2024-12-02 13:55:45,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:55:45,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:55:45,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:55:45,348 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:55:45,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:55:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:55:45,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 13:55:45,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:55:45,816 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 13:55:45,817 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:55:46,107 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 13:55:46,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622556330] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:55:46,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:55:46,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 4] total 19 [2024-12-02 13:55:46,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715571772] [2024-12-02 13:55:46,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:55:46,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 13:55:46,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:55:46,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 13:55:46,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-12-02 13:55:46,108 INFO L87 Difference]: Start difference. First operand 8607 states and 12277 transitions. Second operand has 19 states, 19 states have (on average 20.57894736842105) internal successors, (391), 19 states have internal predecessors, (391), 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) [2024-12-02 13:55:49,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:55:49,661 INFO L93 Difference]: Finished difference Result 20442 states and 28080 transitions. [2024-12-02 13:55:49,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-12-02 13:55:49,662 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 20.57894736842105) internal successors, (391), 19 states have internal predecessors, (391), 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 136 [2024-12-02 13:55:49,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:55:49,682 INFO L225 Difference]: With dead ends: 20442 [2024-12-02 13:55:49,682 INFO L226 Difference]: Without dead ends: 18692 [2024-12-02 13:55:49,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1622 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=942, Invalid=4170, Unknown=0, NotChecked=0, Total=5112 [2024-12-02 13:55:49,688 INFO L435 NwaCegarLoop]: 1568 mSDtfsCounter, 22056 mSDsluCounter, 6969 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22056 SdHoareTripleChecker+Valid, 8537 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 13:55:49,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22056 Valid, 8537 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1349 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 13:55:49,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18692 states. [2024-12-02 13:55:50,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18692 to 18500. [2024-12-02 13:55:50,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18500 states, 18498 states have (on average 1.3530111363390638) internal successors, (25028), 18499 states have internal predecessors, (25028), 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) [2024-12-02 13:55:50,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18500 states to 18500 states and 25028 transitions. [2024-12-02 13:55:50,242 INFO L78 Accepts]: Start accepts. Automaton has 18500 states and 25028 transitions. Word has length 136 [2024-12-02 13:55:50,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:55:50,242 INFO L471 AbstractCegarLoop]: Abstraction has 18500 states and 25028 transitions. [2024-12-02 13:55:50,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 20.57894736842105) internal successors, (391), 19 states have internal predecessors, (391), 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) [2024-12-02 13:55:50,242 INFO L276 IsEmpty]: Start isEmpty. Operand 18500 states and 25028 transitions. [2024-12-02 13:55:50,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 13:55:50,243 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:55:50,243 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:55:50,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:55:50,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:55:50,443 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:55:50,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:55:50,444 INFO L85 PathProgramCache]: Analyzing trace with hash 2044250309, now seen corresponding path program 1 times [2024-12-02 13:55:50,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:55:50,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272993977] [2024-12-02 13:55:50,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:55:50,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:55:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:55:51,134 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:55:51,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:55:51,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272993977] [2024-12-02 13:55:51,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272993977] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:55:51,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038992064] [2024-12-02 13:55:51,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:55:51,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:55:51,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:55:51,136 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:55:51,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:55:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:55:51,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 13:55:51,318 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:55:51,931 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:55:51,931 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:55:53,234 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:55:53,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038992064] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:55:53,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:55:53,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-12-02 13:55:53,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161320486] [2024-12-02 13:55:53,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:55:53,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 13:55:53,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:55:53,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 13:55:53,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=665, Unknown=0, NotChecked=0, Total=756 [2024-12-02 13:55:53,236 INFO L87 Difference]: Start difference. First operand 18500 states and 25028 transitions. Second operand has 28 states, 28 states have (on average 13.392857142857142) internal successors, (375), 27 states have internal predecessors, (375), 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) [2024-12-02 13:55:57,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:55:57,354 INFO L93 Difference]: Finished difference Result 63631 states and 84714 transitions. [2024-12-02 13:55:57,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-12-02 13:55:57,354 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 13.392857142857142) internal successors, (375), 27 states have internal predecessors, (375), 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 137 [2024-12-02 13:55:57,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:55:57,397 INFO L225 Difference]: With dead ends: 63631 [2024-12-02 13:55:57,397 INFO L226 Difference]: Without dead ends: 52271 [2024-12-02 13:55:57,412 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1057 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=881, Invalid=3811, Unknown=0, NotChecked=0, Total=4692 [2024-12-02 13:55:57,413 INFO L435 NwaCegarLoop]: 1554 mSDtfsCounter, 21553 mSDsluCounter, 7160 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21553 SdHoareTripleChecker+Valid, 8714 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 13:55:57,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21553 Valid, 8714 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 13:55:57,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52271 states. [2024-12-02 13:55:58,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52271 to 45943. [2024-12-02 13:55:58,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45943 states, 45941 states have (on average 1.3272458152848219) internal successors, (60975), 45942 states have internal predecessors, (60975), 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) [2024-12-02 13:55:58,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45943 states to 45943 states and 60975 transitions. [2024-12-02 13:55:58,887 INFO L78 Accepts]: Start accepts. Automaton has 45943 states and 60975 transitions. Word has length 137 [2024-12-02 13:55:58,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:55:58,888 INFO L471 AbstractCegarLoop]: Abstraction has 45943 states and 60975 transitions. [2024-12-02 13:55:58,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 13.392857142857142) internal successors, (375), 27 states have internal predecessors, (375), 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) [2024-12-02 13:55:58,888 INFO L276 IsEmpty]: Start isEmpty. Operand 45943 states and 60975 transitions. [2024-12-02 13:55:58,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 13:55:58,889 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:55:58,889 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:55:58,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 13:55:59,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:55:59,090 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:55:59,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:55:59,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1328150331, now seen corresponding path program 1 times [2024-12-02 13:55:59,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:55:59,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904939194] [2024-12-02 13:55:59,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:55:59,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:55:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:55:59,897 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:55:59,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:55:59,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904939194] [2024-12-02 13:55:59,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904939194] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:55:59,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745983440] [2024-12-02 13:55:59,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:55:59,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:55:59,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:55:59,899 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:55:59,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 13:56:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:56:00,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 13:56:00,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:56:00,574 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:56:00,574 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:56:01,474 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:56:01,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745983440] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:56:01,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:56:01,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-12-02 13:56:01,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845081013] [2024-12-02 13:56:01,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:56:01,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 13:56:01,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:56:01,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 13:56:01,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=662, Unknown=0, NotChecked=0, Total=756 [2024-12-02 13:56:01,477 INFO L87 Difference]: Start difference. First operand 45943 states and 60975 transitions. Second operand has 28 states, 28 states have (on average 13.321428571428571) internal successors, (373), 27 states have internal predecessors, (373), 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) [2024-12-02 13:56:09,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:56:09,604 INFO L93 Difference]: Finished difference Result 235239 states and 312505 transitions. [2024-12-02 13:56:09,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-12-02 13:56:09,604 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 13.321428571428571) internal successors, (373), 27 states have internal predecessors, (373), 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 137 [2024-12-02 13:56:09,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:56:09,743 INFO L225 Difference]: With dead ends: 235239 [2024-12-02 13:56:09,743 INFO L226 Difference]: Without dead ends: 196387 [2024-12-02 13:56:09,771 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1027 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=906, Invalid=3786, Unknown=0, NotChecked=0, Total=4692 [2024-12-02 13:56:09,772 INFO L435 NwaCegarLoop]: 1588 mSDtfsCounter, 22788 mSDsluCounter, 7573 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22788 SdHoareTripleChecker+Valid, 9161 SdHoareTripleChecker+Invalid, 1691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:56:09,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22788 Valid, 9161 Invalid, 1691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1655 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 13:56:09,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196387 states. [2024-12-02 13:56:15,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196387 to 194359. [2024-12-02 13:56:15,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194359 states, 194357 states have (on average 1.3062199972216078) internal successors, (253873), 194358 states have internal predecessors, (253873), 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) [2024-12-02 13:56:15,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194359 states to 194359 states and 253873 transitions. [2024-12-02 13:56:15,812 INFO L78 Accepts]: Start accepts. Automaton has 194359 states and 253873 transitions. Word has length 137 [2024-12-02 13:56:15,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:56:15,812 INFO L471 AbstractCegarLoop]: Abstraction has 194359 states and 253873 transitions. [2024-12-02 13:56:15,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 13.321428571428571) internal successors, (373), 27 states have internal predecessors, (373), 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) [2024-12-02 13:56:15,812 INFO L276 IsEmpty]: Start isEmpty. Operand 194359 states and 253873 transitions. [2024-12-02 13:56:15,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 13:56:15,815 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:56:15,815 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 13:56:15,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 13:56:16,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:56:16,015 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:56:16,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:56:16,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1123606741, now seen corresponding path program 1 times [2024-12-02 13:56:16,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:56:16,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033491499] [2024-12-02 13:56:16,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:56:16,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:56:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:56:16,723 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:56:16,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:56:16,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033491499] [2024-12-02 13:56:16,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033491499] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:56:16,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466254714] [2024-12-02 13:56:16,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:56:16,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:56:16,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:56:16,724 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:56:16,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3404bbf-b7bf-4206-acdf-d5bf53fead64/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 13:56:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:56:16,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 13:56:16,915 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:56:17,416 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:56:17,417 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:56:18,732 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:56:18,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466254714] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:56:18,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:56:18,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 28 [2024-12-02 13:56:18,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175800149] [2024-12-02 13:56:18,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:56:18,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-02 13:56:18,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:56:18,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-02 13:56:18,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=695, Unknown=0, NotChecked=0, Total=812 [2024-12-02 13:56:18,734 INFO L87 Difference]: Start difference. First operand 194359 states and 253873 transitions. Second operand has 29 states, 29 states have (on average 12.03448275862069) internal successors, (349), 28 states have internal predecessors, (349), 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) [2024-12-02 13:56:42,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:56:42,297 INFO L93 Difference]: Finished difference Result 937551 states and 1223977 transitions. [2024-12-02 13:56:42,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-12-02 13:56:42,298 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 12.03448275862069) internal successors, (349), 28 states have internal predecessors, (349), 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 139 [2024-12-02 13:56:42,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:56:43,056 INFO L225 Difference]: With dead ends: 937551 [2024-12-02 13:56:43,056 INFO L226 Difference]: Without dead ends: 759503 [2024-12-02 13:56:43,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 772 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=662, Invalid=2644, Unknown=0, NotChecked=0, Total=3306 [2024-12-02 13:56:43,185 INFO L435 NwaCegarLoop]: 1585 mSDtfsCounter, 18100 mSDsluCounter, 8591 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18100 SdHoareTripleChecker+Valid, 10176 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 13:56:43,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18100 Valid, 10176 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 13:56:43,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759503 states.