./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-14.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/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_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-14.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/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_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/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 6a5b8f8985922577fd511c19d4504abdec5cee4f39c0b7323776313784fc34a5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 13:15:34,136 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 13:15:34,199 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-01 13:15:34,204 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 13:15:34,204 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 13:15:34,230 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 13:15:34,230 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 13:15:34,231 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 13:15:34,231 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 13:15:34,231 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 13:15:34,231 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 13:15:34,231 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 13:15:34,232 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 13:15:34,232 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 13:15:34,232 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 13:15:34,232 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 13:15:34,232 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 13:15:34,232 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 13:15:34,232 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 13:15:34,232 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 13:15:34,233 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 13:15:34,233 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 13:15:34,233 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 13:15:34,233 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 13:15:34,233 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 13:15:34,233 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 13:15:34,233 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 13:15:34,233 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 13:15:34,233 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 13:15:34,233 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:15:34,234 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:15:34,234 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:15:34,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:15:34,234 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 13:15:34,234 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:15:34,234 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:15:34,234 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:15:34,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:15:34,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 13:15:34,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 13:15:34,234 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 13:15:34,235 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 13:15:34,235 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 13:15:34,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 13:15:34,235 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 13:15:34,235 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 13:15:34,235 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 13:15:34,235 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 13:15:34,235 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_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/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 -> 6a5b8f8985922577fd511c19d4504abdec5cee4f39c0b7323776313784fc34a5 [2024-12-01 13:15:34,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 13:15:34,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 13:15:34,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 13:15:34,480 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 13:15:34,480 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 13:15:34,481 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-14.i [2024-12-01 13:15:37,192 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/bin/uautomizer-verify-84ZbGMXZE1/data/47c7f99c8/b535587f14d24cac8deb590cf01290ff/FLAG524f048d0 [2024-12-01 13:15:37,423 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 13:15:37,424 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-14.i [2024-12-01 13:15:37,437 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/bin/uautomizer-verify-84ZbGMXZE1/data/47c7f99c8/b535587f14d24cac8deb590cf01290ff/FLAG524f048d0 [2024-12-01 13:15:37,764 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/bin/uautomizer-verify-84ZbGMXZE1/data/47c7f99c8/b535587f14d24cac8deb590cf01290ff [2024-12-01 13:15:37,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 13:15:37,768 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 13:15:37,770 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 13:15:37,770 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 13:15:37,775 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 13:15:37,776 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:15:37" (1/1) ... [2024-12-01 13:15:37,777 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c51e297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:15:37, skipping insertion in model container [2024-12-01 13:15:37,777 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:15:37" (1/1) ... [2024-12-01 13:15:37,812 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 13:15:37,960 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_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-14.i[916,929] [2024-12-01 13:15:38,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:15:38,147 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 13:15:38,159 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_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-14.i[916,929] [2024-12-01 13:15:38,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:15:38,272 INFO L204 MainTranslator]: Completed translation [2024-12-01 13:15:38,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:15:38 WrapperNode [2024-12-01 13:15:38,272 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 13:15:38,273 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 13:15:38,274 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 13:15:38,274 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 13:15:38,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:15:38" (1/1) ... [2024-12-01 13:15:38,301 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:15:38" (1/1) ... [2024-12-01 13:15:38,381 INFO L138 Inliner]: procedures = 26, calls = 139, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 870 [2024-12-01 13:15:38,381 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 13:15:38,382 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 13:15:38,382 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 13:15:38,382 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 13:15:38,391 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:15:38" (1/1) ... [2024-12-01 13:15:38,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:15:38" (1/1) ... [2024-12-01 13:15:38,402 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:15:38" (1/1) ... [2024-12-01 13:15:38,450 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]. [2024-12-01 13:15:38,450 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:15:38" (1/1) ... [2024-12-01 13:15:38,450 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:15:38" (1/1) ... [2024-12-01 13:15:38,477 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:15:38" (1/1) ... [2024-12-01 13:15:38,484 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:15:38" (1/1) ... [2024-12-01 13:15:38,490 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:15:38" (1/1) ... [2024-12-01 13:15:38,500 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:15:38" (1/1) ... [2024-12-01 13:15:38,504 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:15:38" (1/1) ... [2024-12-01 13:15:38,518 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 13:15:38,519 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 13:15:38,519 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 13:15:38,519 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 13:15:38,520 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:15:38" (1/1) ... [2024-12-01 13:15:38,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:15:38,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:15:38,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 13:15:38,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 13:15:38,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 13:15:38,575 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-01 13:15:38,575 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-01 13:15:38,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-01 13:15:38,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 13:15:38,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 13:15:38,708 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 13:15:38,709 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 13:15:40,230 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-12-01 13:15:40,231 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 13:15:40,252 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 13:15:40,252 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-01 13:15:40,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:15:40 BoogieIcfgContainer [2024-12-01 13:15:40,252 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 13:15:40,255 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 13:15:40,255 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 13:15:40,260 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 13:15:40,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 01:15:37" (1/3) ... [2024-12-01 13:15:40,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d9368c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:15:40, skipping insertion in model container [2024-12-01 13:15:40,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:15:38" (2/3) ... [2024-12-01 13:15:40,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d9368c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:15:40, skipping insertion in model container [2024-12-01 13:15:40,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:15:40" (3/3) ... [2024-12-01 13:15:40,262 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-14.i [2024-12-01 13:15:40,278 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 13:15:40,281 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-14.i that has 2 procedures, 369 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-01 13:15:40,354 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 13:15:40,367 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;@46ba1de2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 13:15:40,367 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-01 13:15:40,372 INFO L276 IsEmpty]: Start isEmpty. Operand has 369 states, 240 states have (on average 1.5875) internal successors, (381), 241 states have internal predecessors, (381), 126 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-12-01 13:15:40,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 785 [2024-12-01 13:15:40,414 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:15:40,415 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:15:40,415 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:15:40,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:15:40,421 INFO L85 PathProgramCache]: Analyzing trace with hash 757028400, now seen corresponding path program 1 times [2024-12-01 13:15:40,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:15:40,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245926957] [2024-12-01 13:15:40,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:40,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:15:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:41,144 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 250 refuted. 0 times theorem prover too weak. 31250 trivial. 0 not checked. [2024-12-01 13:15:41,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:15:41,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245926957] [2024-12-01 13:15:41,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245926957] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:15:41,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865893457] [2024-12-01 13:15:41,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:41,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:15:41,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:15:41,148 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:15:41,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-01 13:15:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:41,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 1751 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-01 13:15:41,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:15:41,723 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 31250 trivial. 0 not checked. [2024-12-01 13:15:41,723 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:15:41,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865893457] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:15:41,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:15:41,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-01 13:15:41,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671104919] [2024-12-01 13:15:41,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:15:41,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-01 13:15:41,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:15:41,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-01 13:15:41,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-01 13:15:41,755 INFO L87 Difference]: Start difference. First operand has 369 states, 240 states have (on average 1.5875) internal successors, (381), 241 states have internal predecessors, (381), 126 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) Second operand has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 2 states have call successors, (126), 2 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 2 states have call successors, (126) [2024-12-01 13:15:41,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:15:41,808 INFO L93 Difference]: Finished difference Result 730 states and 1384 transitions. [2024-12-01 13:15:41,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-01 13:15:41,810 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 2 states have call successors, (126), 2 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 2 states have call successors, (126) Word has length 784 [2024-12-01 13:15:41,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:15:41,819 INFO L225 Difference]: With dead ends: 730 [2024-12-01 13:15:41,819 INFO L226 Difference]: Without dead ends: 364 [2024-12-01 13:15:41,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 785 GetRequests, 785 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-01 13:15:41,826 INFO L435 NwaCegarLoop]: 620 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, 620 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 [2024-12-01 13:15:41,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:15:41,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-12-01 13:15:41,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2024-12-01 13:15:41,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 236 states have (on average 1.5593220338983051) internal successors, (368), 236 states have internal predecessors, (368), 126 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-12-01 13:15:41,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 620 transitions. [2024-12-01 13:15:41,914 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 620 transitions. Word has length 784 [2024-12-01 13:15:41,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:15:41,915 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 620 transitions. [2024-12-01 13:15:41,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 2 states have call successors, (126), 2 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 2 states have call successors, (126) [2024-12-01 13:15:41,915 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 620 transitions. [2024-12-01 13:15:41,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-12-01 13:15:41,939 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:15:41,939 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:15:41,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-01 13:15:42,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:15:42,140 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:15:42,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:15:42,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1613306567, now seen corresponding path program 1 times [2024-12-01 13:15:42,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:15:42,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113911062] [2024-12-01 13:15:42,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:42,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:15:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:43,157 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-12-01 13:15:43,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:15:43,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113911062] [2024-12-01 13:15:43,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113911062] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:15:43,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:15:43,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:15:43,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075988106] [2024-12-01 13:15:43,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:15:43,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:15:43,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:15:43,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:15:43,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:15:43,162 INFO L87 Difference]: Start difference. First operand 364 states and 620 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:15:43,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:15:43,250 INFO L93 Difference]: Finished difference Result 933 states and 1600 transitions. [2024-12-01 13:15:43,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:15:43,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 785 [2024-12-01 13:15:43,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:15:43,260 INFO L225 Difference]: With dead ends: 933 [2024-12-01 13:15:43,260 INFO L226 Difference]: Without dead ends: 572 [2024-12-01 13:15:43,262 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 [2024-12-01 13:15:43,263 INFO L435 NwaCegarLoop]: 713 mSDtfsCounter, 347 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:15:43,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1323 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:15:43,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-12-01 13:15:43,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 569. [2024-12-01 13:15:43,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 404 states have (on average 1.6212871287128714) internal successors, (655), 405 states have internal predecessors, (655), 162 states have call successors, (162), 2 states have call predecessors, (162), 2 states have return successors, (162), 161 states have call predecessors, (162), 162 states have call successors, (162) [2024-12-01 13:15:43,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 979 transitions. [2024-12-01 13:15:43,334 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 979 transitions. Word has length 785 [2024-12-01 13:15:43,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:15:43,336 INFO L471 AbstractCegarLoop]: Abstraction has 569 states and 979 transitions. [2024-12-01 13:15:43,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:15:43,337 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 979 transitions. [2024-12-01 13:15:43,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-12-01 13:15:43,345 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:15:43,346 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:15:43,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-01 13:15:43,346 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:15:43,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:15:43,347 INFO L85 PathProgramCache]: Analyzing trace with hash 530652103, now seen corresponding path program 1 times [2024-12-01 13:15:43,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:15:43,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219381652] [2024-12-01 13:15:43,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:43,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:15:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:43,798 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-12-01 13:15:43,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:15:43,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219381652] [2024-12-01 13:15:43,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219381652] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:15:43,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:15:43,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:15:43,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195538106] [2024-12-01 13:15:43,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:15:43,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:15:43,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:15:43,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:15:43,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:15:43,802 INFO L87 Difference]: Start difference. First operand 569 states and 979 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:15:43,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:15:43,899 INFO L93 Difference]: Finished difference Result 1559 states and 2694 transitions. [2024-12-01 13:15:43,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:15:43,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 785 [2024-12-01 13:15:43,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:15:43,908 INFO L225 Difference]: With dead ends: 1559 [2024-12-01 13:15:43,909 INFO L226 Difference]: Without dead ends: 993 [2024-12-01 13:15:43,910 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 [2024-12-01 13:15:43,911 INFO L435 NwaCegarLoop]: 771 mSDtfsCounter, 367 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:15:43,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 1370 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:15:43,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2024-12-01 13:15:43,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 990. [2024-12-01 13:15:43,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 740 states have (on average 1.6432432432432433) internal successors, (1216), 743 states have internal predecessors, (1216), 245 states have call successors, (245), 4 states have call predecessors, (245), 4 states have return successors, (245), 242 states have call predecessors, (245), 245 states have call successors, (245) [2024-12-01 13:15:43,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1706 transitions. [2024-12-01 13:15:43,979 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1706 transitions. Word has length 785 [2024-12-01 13:15:43,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:15:43,981 INFO L471 AbstractCegarLoop]: Abstraction has 990 states and 1706 transitions. [2024-12-01 13:15:43,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:15:43,981 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1706 transitions. [2024-12-01 13:15:43,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-12-01 13:15:43,987 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:15:43,987 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:15:43,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-01 13:15:43,988 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:15:43,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:15:43,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1191177081, now seen corresponding path program 1 times [2024-12-01 13:15:43,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:15:43,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629342087] [2024-12-01 13:15:43,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:43,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:15:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:44,269 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-12-01 13:15:44,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:15:44,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629342087] [2024-12-01 13:15:44,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629342087] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:15:44,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:15:44,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:15:44,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757951158] [2024-12-01 13:15:44,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:15:44,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:15:44,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:15:44,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:15:44,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:15:44,272 INFO L87 Difference]: Start difference. First operand 990 states and 1706 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:15:44,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:15:44,353 INFO L93 Difference]: Finished difference Result 2512 states and 4294 transitions. [2024-12-01 13:15:44,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:15:44,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 785 [2024-12-01 13:15:44,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:15:44,363 INFO L225 Difference]: With dead ends: 2512 [2024-12-01 13:15:44,363 INFO L226 Difference]: Without dead ends: 1525 [2024-12-01 13:15:44,365 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 [2024-12-01 13:15:44,366 INFO L435 NwaCegarLoop]: 619 mSDtfsCounter, 319 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:15:44,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 1229 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:15:44,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1525 states. [2024-12-01 13:15:44,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1525 to 1522. [2024-12-01 13:15:44,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1522 states, 1055 states have (on average 1.5819905213270142) internal successors, (1669), 1062 states have internal predecessors, (1669), 458 states have call successors, (458), 8 states have call predecessors, (458), 8 states have return successors, (458), 451 states have call predecessors, (458), 458 states have call successors, (458) [2024-12-01 13:15:44,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 2585 transitions. [2024-12-01 13:15:44,480 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 2585 transitions. Word has length 785 [2024-12-01 13:15:44,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:15:44,481 INFO L471 AbstractCegarLoop]: Abstraction has 1522 states and 2585 transitions. [2024-12-01 13:15:44,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:15:44,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 2585 transitions. [2024-12-01 13:15:44,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-12-01 13:15:44,486 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:15:44,487 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:15:44,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-01 13:15:44,487 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:15:44,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:15:44,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1700650171, now seen corresponding path program 1 times [2024-12-01 13:15:44,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:15:44,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839722957] [2024-12-01 13:15:44,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:44,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:15:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:44,783 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-12-01 13:15:44,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:15:44,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839722957] [2024-12-01 13:15:44,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839722957] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:15:44,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:15:44,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:15:44,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7694524] [2024-12-01 13:15:44,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:15:44,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:15:44,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:15:44,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:15:44,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:15:44,786 INFO L87 Difference]: Start difference. First operand 1522 states and 2585 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:15:45,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:15:45,008 INFO L93 Difference]: Finished difference Result 4500 states and 7645 transitions. [2024-12-01 13:15:45,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:15:45,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 785 [2024-12-01 13:15:45,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:15:45,032 INFO L225 Difference]: With dead ends: 4500 [2024-12-01 13:15:45,033 INFO L226 Difference]: Without dead ends: 2981 [2024-12-01 13:15:45,039 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 [2024-12-01 13:15:45,040 INFO L435 NwaCegarLoop]: 616 mSDtfsCounter, 588 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:15:45,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 1226 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:15:45,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2024-12-01 13:15:45,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 2979. [2024-12-01 13:15:45,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2046 states have (on average 1.5728250244379276) internal successors, (3218), 2060 states have internal predecessors, (3218), 916 states have call successors, (916), 16 states have call predecessors, (916), 16 states have return successors, (916), 902 states have call predecessors, (916), 916 states have call successors, (916) [2024-12-01 13:15:45,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 5050 transitions. [2024-12-01 13:15:45,502 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 5050 transitions. Word has length 785 [2024-12-01 13:15:45,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:15:45,504 INFO L471 AbstractCegarLoop]: Abstraction has 2979 states and 5050 transitions. [2024-12-01 13:15:45,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:15:45,505 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 5050 transitions. [2024-12-01 13:15:45,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-12-01 13:15:45,521 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:15:45,521 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:15:45,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-01 13:15:45,522 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:15:45,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:15:45,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1638610557, now seen corresponding path program 1 times [2024-12-01 13:15:45,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:15:45,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855228357] [2024-12-01 13:15:45,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:45,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:15:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:45,890 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-12-01 13:15:45,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:15:45,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855228357] [2024-12-01 13:15:45,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855228357] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:15:45,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:15:45,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:15:45,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474025414] [2024-12-01 13:15:45,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:15:45,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:15:45,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:15:45,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:15:45,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:15:45,894 INFO L87 Difference]: Start difference. First operand 2979 states and 5050 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:15:46,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:15:46,243 INFO L93 Difference]: Finished difference Result 8329 states and 14092 transitions. [2024-12-01 13:15:46,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:15:46,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 785 [2024-12-01 13:15:46,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:15:46,285 INFO L225 Difference]: With dead ends: 8329 [2024-12-01 13:15:46,285 INFO L226 Difference]: Without dead ends: 5353 [2024-12-01 13:15:46,298 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 [2024-12-01 13:15:46,298 INFO L435 NwaCegarLoop]: 859 mSDtfsCounter, 378 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:15:46,299 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 1451 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:15:46,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5353 states. [2024-12-01 13:15:46,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5353 to 5347. [2024-12-01 13:15:46,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 3570 states have (on average 1.538375350140056) internal successors, (5492), 3600 states have internal predecessors, (5492), 1744 states have call successors, (1744), 32 states have call predecessors, (1744), 32 states have return successors, (1744), 1714 states have call predecessors, (1744), 1744 states have call successors, (1744) [2024-12-01 13:15:46,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 8980 transitions. [2024-12-01 13:15:46,935 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 8980 transitions. Word has length 785 [2024-12-01 13:15:46,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:15:46,937 INFO L471 AbstractCegarLoop]: Abstraction has 5347 states and 8980 transitions. [2024-12-01 13:15:46,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:15:46,937 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 8980 transitions. [2024-12-01 13:15:46,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-12-01 13:15:46,948 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:15:46,949 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:15:46,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-01 13:15:46,949 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:15:46,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:15:46,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1504597051, now seen corresponding path program 1 times [2024-12-01 13:15:46,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:15:46,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571269719] [2024-12-01 13:15:46,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:46,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:15:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:47,287 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-12-01 13:15:47,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:15:47,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571269719] [2024-12-01 13:15:47,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571269719] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:15:47,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:15:47,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:15:47,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440312246] [2024-12-01 13:15:47,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:15:47,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:15:47,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:15:47,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:15:47,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:15:47,290 INFO L87 Difference]: Start difference. First operand 5347 states and 8980 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:15:48,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:15:48,048 INFO L93 Difference]: Finished difference Result 15333 states and 25686 transitions. [2024-12-01 13:15:48,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:15:48,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 785 [2024-12-01 13:15:48,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:15:48,130 INFO L225 Difference]: With dead ends: 15333 [2024-12-01 13:15:48,130 INFO L226 Difference]: Without dead ends: 9989 [2024-12-01 13:15:48,154 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 [2024-12-01 13:15:48,155 INFO L435 NwaCegarLoop]: 893 mSDtfsCounter, 359 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:15:48,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 1501 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:15:48,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9989 states. [2024-12-01 13:15:49,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9989 to 9979. [2024-12-01 13:15:49,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9979 states, 6546 states have (on average 1.5172624503513596) internal successors, (9932), 6608 states have internal predecessors, (9932), 3368 states have call successors, (3368), 64 states have call predecessors, (3368), 64 states have return successors, (3368), 3306 states have call predecessors, (3368), 3368 states have call successors, (3368) [2024-12-01 13:15:49,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9979 states to 9979 states and 16668 transitions. [2024-12-01 13:15:49,278 INFO L78 Accepts]: Start accepts. Automaton has 9979 states and 16668 transitions. Word has length 785 [2024-12-01 13:15:49,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:15:49,280 INFO L471 AbstractCegarLoop]: Abstraction has 9979 states and 16668 transitions. [2024-12-01 13:15:49,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:15:49,280 INFO L276 IsEmpty]: Start isEmpty. Operand 9979 states and 16668 transitions. [2024-12-01 13:15:49,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-12-01 13:15:49,293 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:15:49,293 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:15:49,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-01 13:15:49,294 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:15:49,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:15:49,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1972721795, now seen corresponding path program 1 times [2024-12-01 13:15:49,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:15:49,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885831330] [2024-12-01 13:15:49,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:49,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:15:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:49,634 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-12-01 13:15:49,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:15:49,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885831330] [2024-12-01 13:15:49,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885831330] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:15:49,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:15:49,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:15:49,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944390513] [2024-12-01 13:15:49,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:15:49,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:15:49,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:15:49,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:15:49,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:15:49,637 INFO L87 Difference]: Start difference. First operand 9979 states and 16668 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:15:50,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:15:50,939 INFO L93 Difference]: Finished difference Result 29931 states and 49998 transitions. [2024-12-01 13:15:50,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:15:50,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 785 [2024-12-01 13:15:50,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:15:51,069 INFO L225 Difference]: With dead ends: 29931 [2024-12-01 13:15:51,069 INFO L226 Difference]: Without dead ends: 19955 [2024-12-01 13:15:51,109 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 [2024-12-01 13:15:51,110 INFO L435 NwaCegarLoop]: 626 mSDtfsCounter, 598 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:15:51,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 1238 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:15:51,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19955 states. [2024-12-01 13:15:52,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19955 to 19953. [2024-12-01 13:15:52,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19953 states, 13088 states have (on average 1.5125305623471883) internal successors, (19796), 13212 states have internal predecessors, (19796), 6736 states have call successors, (6736), 128 states have call predecessors, (6736), 128 states have return successors, (6736), 6612 states have call predecessors, (6736), 6736 states have call successors, (6736) [2024-12-01 13:15:52,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19953 states to 19953 states and 33268 transitions. [2024-12-01 13:15:52,963 INFO L78 Accepts]: Start accepts. Automaton has 19953 states and 33268 transitions. Word has length 785 [2024-12-01 13:15:52,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:15:52,964 INFO L471 AbstractCegarLoop]: Abstraction has 19953 states and 33268 transitions. [2024-12-01 13:15:52,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:15:52,965 INFO L276 IsEmpty]: Start isEmpty. Operand 19953 states and 33268 transitions. [2024-12-01 13:15:52,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-12-01 13:15:52,980 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:15:52,980 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:15:52,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-01 13:15:52,981 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:15:52,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:15:52,982 INFO L85 PathProgramCache]: Analyzing trace with hash 283778053, now seen corresponding path program 1 times [2024-12-01 13:15:52,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:15:52,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115392842] [2024-12-01 13:15:52,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:52,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:15:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:53,331 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-12-01 13:15:53,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:15:53,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115392842] [2024-12-01 13:15:53,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115392842] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:15:53,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:15:53,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:15:53,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927577466] [2024-12-01 13:15:53,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:15:53,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:15:53,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:15:53,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:15:53,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:15:53,334 INFO L87 Difference]: Start difference. First operand 19953 states and 33268 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:15:54,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:15:54,938 INFO L93 Difference]: Finished difference Result 40065 states and 66662 transitions. [2024-12-01 13:15:54,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:15:54,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 785 [2024-12-01 13:15:54,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:15:55,025 INFO L225 Difference]: With dead ends: 40065 [2024-12-01 13:15:55,026 INFO L226 Difference]: Without dead ends: 20115 [2024-12-01 13:15:55,077 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 [2024-12-01 13:15:55,078 INFO L435 NwaCegarLoop]: 799 mSDtfsCounter, 318 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:15:55,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1402 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:15:55,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20115 states. [2024-12-01 13:15:55,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20115 to 14513. [2024-12-01 13:15:55,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14513 states, 10336 states have (on average 1.5514705882352942) internal successors, (16036), 10396 states have internal predecessors, (16036), 4080 states have call successors, (4080), 96 states have call predecessors, (4080), 96 states have return successors, (4080), 4020 states have call predecessors, (4080), 4080 states have call successors, (4080) [2024-12-01 13:15:56,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14513 states to 14513 states and 24196 transitions. [2024-12-01 13:15:56,030 INFO L78 Accepts]: Start accepts. Automaton has 14513 states and 24196 transitions. Word has length 785 [2024-12-01 13:15:56,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:15:56,031 INFO L471 AbstractCegarLoop]: Abstraction has 14513 states and 24196 transitions. [2024-12-01 13:15:56,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:15:56,031 INFO L276 IsEmpty]: Start isEmpty. Operand 14513 states and 24196 transitions. [2024-12-01 13:15:56,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-12-01 13:15:56,039 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:15:56,040 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:15:56,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-01 13:15:56,040 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:15:56,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:15:56,041 INFO L85 PathProgramCache]: Analyzing trace with hash -727339197, now seen corresponding path program 1 times [2024-12-01 13:15:56,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:15:56,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052627229] [2024-12-01 13:15:56,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:56,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:15:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:56,604 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-12-01 13:15:56,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:15:56,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052627229] [2024-12-01 13:15:56,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052627229] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:15:56,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:15:56,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:15:56,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053600320] [2024-12-01 13:15:56,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:15:56,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:15:56,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:15:56,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:15:56,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:15:56,607 INFO L87 Difference]: Start difference. First operand 14513 states and 24196 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 2 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) [2024-12-01 13:15:59,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:15:59,278 INFO L93 Difference]: Finished difference Result 58043 states and 96775 transitions. [2024-12-01 13:15:59,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 13:15:59,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 2 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) Word has length 785 [2024-12-01 13:15:59,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:15:59,503 INFO L225 Difference]: With dead ends: 58043 [2024-12-01 13:15:59,503 INFO L226 Difference]: Without dead ends: 43533 [2024-12-01 13:15:59,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:15:59,554 INFO L435 NwaCegarLoop]: 1354 mSDtfsCounter, 937 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 3132 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:15:59,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 3132 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-01 13:15:59,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43533 states. [2024-12-01 13:16:02,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43533 to 43497. [2024-12-01 13:16:02,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43497 states, 30968 states have (on average 1.5508912425729786) internal successors, (48028), 31148 states have internal predecessors, (48028), 12240 states have call successors, (12240), 288 states have call predecessors, (12240), 288 states have return successors, (12240), 12060 states have call predecessors, (12240), 12240 states have call successors, (12240) [2024-12-01 13:16:02,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43497 states to 43497 states and 72508 transitions. [2024-12-01 13:16:02,688 INFO L78 Accepts]: Start accepts. Automaton has 43497 states and 72508 transitions. Word has length 785 [2024-12-01 13:16:02,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:16:02,689 INFO L471 AbstractCegarLoop]: Abstraction has 43497 states and 72508 transitions. [2024-12-01 13:16:02,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 2 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) [2024-12-01 13:16:02,689 INFO L276 IsEmpty]: Start isEmpty. Operand 43497 states and 72508 transitions. [2024-12-01 13:16:02,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 787 [2024-12-01 13:16:02,707 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:16:02,707 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:16:02,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-01 13:16:02,707 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:16:02,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:16:02,708 INFO L85 PathProgramCache]: Analyzing trace with hash -894789489, now seen corresponding path program 1 times [2024-12-01 13:16:02,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:16:02,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063149079] [2024-12-01 13:16:02,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:16:02,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:16:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:16:03,032 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-12-01 13:16:03,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:16:03,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063149079] [2024-12-01 13:16:03,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063149079] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:16:03,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:16:03,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:16:03,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084251983] [2024-12-01 13:16:03,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:16:03,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:16:03,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:16:03,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:16:03,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:16:03,035 INFO L87 Difference]: Start difference. First operand 43497 states and 72508 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:16:05,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:16:05,526 INFO L93 Difference]: Finished difference Result 108739 states and 181170 transitions. [2024-12-01 13:16:05,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:16:05,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 786 [2024-12-01 13:16:05,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:16:05,715 INFO L225 Difference]: With dead ends: 108739 [2024-12-01 13:16:05,715 INFO L226 Difference]: Without dead ends: 65245 [2024-12-01 13:16:05,807 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 [2024-12-01 13:16:05,808 INFO L435 NwaCegarLoop]: 612 mSDtfsCounter, 375 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:16:05,808 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 1219 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:16:05,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65245 states. [2024-12-01 13:16:10,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65245 to 65243. [2024-12-01 13:16:10,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65243 states, 46450 states have (on average 1.5467814854682453) internal successors, (71848), 46720 states have internal predecessors, (71848), 18360 states have call successors, (18360), 432 states have call predecessors, (18360), 432 states have return successors, (18360), 18090 states have call predecessors, (18360), 18360 states have call successors, (18360) [2024-12-01 13:16:10,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65243 states to 65243 states and 108568 transitions. [2024-12-01 13:16:10,324 INFO L78 Accepts]: Start accepts. Automaton has 65243 states and 108568 transitions. Word has length 786 [2024-12-01 13:16:10,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:16:10,325 INFO L471 AbstractCegarLoop]: Abstraction has 65243 states and 108568 transitions. [2024-12-01 13:16:10,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:16:10,325 INFO L276 IsEmpty]: Start isEmpty. Operand 65243 states and 108568 transitions. [2024-12-01 13:16:10,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 787 [2024-12-01 13:16:10,351 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:16:10,351 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:16:10,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-01 13:16:10,351 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:16:10,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:16:10,352 INFO L85 PathProgramCache]: Analyzing trace with hash 2028370509, now seen corresponding path program 1 times [2024-12-01 13:16:10,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:16:10,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270179443] [2024-12-01 13:16:10,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:16:10,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:16:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:16:11,007 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-12-01 13:16:11,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:16:11,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270179443] [2024-12-01 13:16:11,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270179443] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:16:11,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:16:11,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:16:11,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786732444] [2024-12-01 13:16:11,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:16:11,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:16:11,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:16:11,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:16:11,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:16:11,009 INFO L87 Difference]: Start difference. First operand 65243 states and 108568 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:16:17,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:16:17,586 INFO L93 Difference]: Finished difference Result 195723 states and 325698 transitions. [2024-12-01 13:16:17,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:16:17,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 786 [2024-12-01 13:16:17,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:16:18,073 INFO L225 Difference]: With dead ends: 195723 [2024-12-01 13:16:18,073 INFO L226 Difference]: Without dead ends: 130483 [2024-12-01 13:16:18,238 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 [2024-12-01 13:16:18,239 INFO L435 NwaCegarLoop]: 687 mSDtfsCounter, 368 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1301 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:16:18,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 1301 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:16:18,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130483 states. [2024-12-01 13:16:26,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130483 to 130481. [2024-12-01 13:16:26,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130481 states, 92896 states have (on average 1.5421546675852567) internal successors, (143260), 93436 states have internal predecessors, (143260), 36720 states have call successors, (36720), 864 states have call predecessors, (36720), 864 states have return successors, (36720), 36180 states have call predecessors, (36720), 36720 states have call successors, (36720) [2024-12-01 13:16:27,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130481 states to 130481 states and 216700 transitions. [2024-12-01 13:16:27,216 INFO L78 Accepts]: Start accepts. Automaton has 130481 states and 216700 transitions. Word has length 786 [2024-12-01 13:16:27,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:16:27,217 INFO L471 AbstractCegarLoop]: Abstraction has 130481 states and 216700 transitions. [2024-12-01 13:16:27,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:16:27,217 INFO L276 IsEmpty]: Start isEmpty. Operand 130481 states and 216700 transitions. [2024-12-01 13:16:27,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2024-12-01 13:16:27,259 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:16:27,259 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:16:27,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-01 13:16:27,260 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:16:27,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:16:27,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1329396806, now seen corresponding path program 1 times [2024-12-01 13:16:27,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:16:27,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782967060] [2024-12-01 13:16:27,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:16:27,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:16:27,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:16:28,147 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-12-01 13:16:28,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:16:28,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782967060] [2024-12-01 13:16:28,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782967060] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:16:28,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:16:28,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:16:28,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616321274] [2024-12-01 13:16:28,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:16:28,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:16:28,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:16:28,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:16:28,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:16:28,149 INFO L87 Difference]: Start difference. First operand 130481 states and 216700 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:16:38,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:16:38,793 INFO L93 Difference]: Finished difference Result 361893 states and 599532 transitions. [2024-12-01 13:16:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:16:38,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 787 [2024-12-01 13:16:38,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:16:39,817 INFO L225 Difference]: With dead ends: 361893 [2024-12-01 13:16:39,817 INFO L226 Difference]: Without dead ends: 231415 [2024-12-01 13:16:40,099 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 [2024-12-01 13:16:40,100 INFO L435 NwaCegarLoop]: 674 mSDtfsCounter, 397 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:16:40,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 1280 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:16:40,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231415 states. [2024-12-01 13:16:56,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231415 to 231413. [2024-12-01 13:16:56,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231413 states, 156244 states have (on average 1.5097027725864673) internal successors, (235882), 157324 states have internal predecessors, (235882), 73440 states have call successors, (73440), 1728 states have call predecessors, (73440), 1728 states have return successors, (73440), 72360 states have call predecessors, (73440), 73440 states have call successors, (73440) [2024-12-01 13:16:57,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231413 states to 231413 states and 382762 transitions. [2024-12-01 13:16:57,428 INFO L78 Accepts]: Start accepts. Automaton has 231413 states and 382762 transitions. Word has length 787 [2024-12-01 13:16:57,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:16:57,429 INFO L471 AbstractCegarLoop]: Abstraction has 231413 states and 382762 transitions. [2024-12-01 13:16:57,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:16:57,429 INFO L276 IsEmpty]: Start isEmpty. Operand 231413 states and 382762 transitions. [2024-12-01 13:16:57,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2024-12-01 13:16:57,475 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:16:57,476 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:16:57,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-01 13:16:57,476 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:16:57,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:16:57,477 INFO L85 PathProgramCache]: Analyzing trace with hash 2011630332, now seen corresponding path program 1 times [2024-12-01 13:16:57,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:16:57,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244853711] [2024-12-01 13:16:57,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:16:57,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:16:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:16:58,835 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-12-01 13:16:58,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:16:58,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244853711] [2024-12-01 13:16:58,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244853711] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:16:58,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:16:58,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:16:58,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877007176] [2024-12-01 13:16:58,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:16:58,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:16:58,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:16:58,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:16:58,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:16:58,838 INFO L87 Difference]: Start difference. First operand 231413 states and 382762 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 2 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) [2024-12-01 13:17:21,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:17:21,057 INFO L93 Difference]: Finished difference Result 462971 states and 765859 transitions. [2024-12-01 13:17:21,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:17:21,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 2 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) Word has length 787 [2024-12-01 13:17:21,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:17:22,566 INFO L225 Difference]: With dead ends: 462971 [2024-12-01 13:17:22,566 INFO L226 Difference]: Without dead ends: 385785 [2024-12-01 13:17:22,991 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:17:22,992 INFO L435 NwaCegarLoop]: 1564 mSDtfsCounter, 1464 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 2619 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-01 13:17:22,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 2619 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-01 13:17:23,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385785 states. [2024-12-01 13:17:54,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385785 to 385709. [2024-12-01 13:17:55,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385709 states, 260428 states have (on average 1.5096917382155528) internal successors, (393166), 262228 states have internal predecessors, (393166), 122400 states have call successors, (122400), 2880 states have call predecessors, (122400), 2880 states have return successors, (122400), 120600 states have call predecessors, (122400), 122400 states have call successors, (122400) [2024-12-01 13:17:56,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385709 states to 385709 states and 637966 transitions. [2024-12-01 13:17:57,314 INFO L78 Accepts]: Start accepts. Automaton has 385709 states and 637966 transitions. Word has length 787 [2024-12-01 13:17:57,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:17:57,314 INFO L471 AbstractCegarLoop]: Abstraction has 385709 states and 637966 transitions. [2024-12-01 13:17:57,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 2 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) [2024-12-01 13:17:57,315 INFO L276 IsEmpty]: Start isEmpty. Operand 385709 states and 637966 transitions. [2024-12-01 13:17:57,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2024-12-01 13:17:57,396 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:17:57,396 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:57,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-01 13:17:57,397 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:17:57,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:57,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1044279678, now seen corresponding path program 1 times [2024-12-01 13:17:57,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:57,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610748624] [2024-12-01 13:17:57,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:57,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:58,133 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-12-01 13:17:58,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:58,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610748624] [2024-12-01 13:17:58,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610748624] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:17:58,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:17:58,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 13:17:58,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981514985] [2024-12-01 13:17:58,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:17:58,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 13:17:58,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:58,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 13:17:58,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:17:58,136 INFO L87 Difference]: Start difference. First operand 385709 states and 637966 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:18:28,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:18:28,958 INFO L93 Difference]: Finished difference Result 657647 states and 1083970 transitions. [2024-12-01 13:18:28,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 13:18:28,959 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 787 [2024-12-01 13:18:28,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:18:32,437 INFO L225 Difference]: With dead ends: 657647 [2024-12-01 13:18:32,438 INFO L226 Difference]: Without dead ends: 464793 [2024-12-01 13:18:33,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:18:33,188 INFO L435 NwaCegarLoop]: 1191 mSDtfsCounter, 708 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-01 13:18:33,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 2006 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-01 13:18:33,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464793 states. [2024-12-01 13:19:09,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464793 to 392369. [2024-12-01 13:19:09,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392369 states, 267088 states have (on average 1.512482777212005) internal successors, (403966), 268888 states have internal predecessors, (403966), 122400 states have call successors, (122400), 2880 states have call predecessors, (122400), 2880 states have return successors, (122400), 120600 states have call predecessors, (122400), 122400 states have call successors, (122400) [2024-12-01 13:19:12,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392369 states to 392369 states and 648766 transitions. [2024-12-01 13:19:12,696 INFO L78 Accepts]: Start accepts. Automaton has 392369 states and 648766 transitions. Word has length 787 [2024-12-01 13:19:12,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:19:12,697 INFO L471 AbstractCegarLoop]: Abstraction has 392369 states and 648766 transitions. [2024-12-01 13:19:12,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:19:12,698 INFO L276 IsEmpty]: Start isEmpty. Operand 392369 states and 648766 transitions. [2024-12-01 13:19:12,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2024-12-01 13:19:12,998 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:19:12,999 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:19:12,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-01 13:19:13,000 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:19:13,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:19:13,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1920298684, now seen corresponding path program 1 times [2024-12-01 13:19:13,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:19:13,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188735275] [2024-12-01 13:19:13,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:19:13,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:19:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:19:14,862 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-12-01 13:19:14,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:19:14,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188735275] [2024-12-01 13:19:14,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188735275] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:19:14,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:19:14,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:19:14,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624246290] [2024-12-01 13:19:14,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:19:14,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:19:14,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:19:14,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:19:14,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:19:14,871 INFO L87 Difference]: Start difference. First operand 392369 states and 648766 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:19:44,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:19:44,299 INFO L93 Difference]: Finished difference Result 789177 states and 1304790 transitions. [2024-12-01 13:19:44,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:19:44,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 787 [2024-12-01 13:19:44,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:19:46,715 INFO L225 Difference]: With dead ends: 789177 [2024-12-01 13:19:46,716 INFO L226 Difference]: Without dead ends: 396811 [2024-12-01 13:19:47,557 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 [2024-12-01 13:19:47,558 INFO L435 NwaCegarLoop]: 718 mSDtfsCounter, 369 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:19:47,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 1319 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:19:47,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396811 states. [2024-12-01 13:20:12,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396811 to 278009. [2024-12-01 13:20:12,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278009 states, 212488 states have (on average 1.5631282707729377) internal successors, (332146), 213328 states have internal predecessors, (332146), 63840 states have call successors, (63840), 1680 states have call predecessors, (63840), 1680 states have return successors, (63840), 63000 states have call predecessors, (63840), 63840 states have call successors, (63840) [2024-12-01 13:20:13,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278009 states to 278009 states and 459826 transitions. [2024-12-01 13:20:13,866 INFO L78 Accepts]: Start accepts. Automaton has 278009 states and 459826 transitions. Word has length 787 [2024-12-01 13:20:13,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:20:13,867 INFO L471 AbstractCegarLoop]: Abstraction has 278009 states and 459826 transitions. [2024-12-01 13:20:13,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:20:13,868 INFO L276 IsEmpty]: Start isEmpty. Operand 278009 states and 459826 transitions. [2024-12-01 13:20:13,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2024-12-01 13:20:13,942 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:20:13,942 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:13,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-01 13:20:13,942 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:20:13,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:13,943 INFO L85 PathProgramCache]: Analyzing trace with hash 338485886, now seen corresponding path program 1 times [2024-12-01 13:20:13,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:13,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457289373] [2024-12-01 13:20:13,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:13,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:16,886 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-12-01 13:20:16,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:16,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457289373] [2024-12-01 13:20:16,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457289373] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:16,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:16,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:20:16,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306646918] [2024-12-01 13:20:16,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:16,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:20:16,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:16,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:20:16,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:20:16,890 INFO L87 Difference]: Start difference. First operand 278009 states and 459826 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:20:46,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:46,389 INFO L93 Difference]: Finished difference Result 676117 states and 1115732 transitions. [2024-12-01 13:20:46,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:20:46,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 787 [2024-12-01 13:20:46,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:48,329 INFO L225 Difference]: With dead ends: 676117 [2024-12-01 13:20:48,330 INFO L226 Difference]: Without dead ends: 398111 [2024-12-01 13:20:48,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:20:48,762 INFO L435 NwaCegarLoop]: 923 mSDtfsCounter, 1361 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 2027 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:48,762 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 2027 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-01 13:20:48,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398111 states. [2024-12-01 13:21:15,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398111 to 290969. [2024-12-01 13:21:15,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290969 states, 225448 states have (on average 1.5778627444022568) internal successors, (355726), 226288 states have internal predecessors, (355726), 63840 states have call successors, (63840), 1680 states have call predecessors, (63840), 1680 states have return successors, (63840), 63000 states have call predecessors, (63840), 63840 states have call successors, (63840) [2024-12-01 13:21:16,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290969 states to 290969 states and 483406 transitions. [2024-12-01 13:21:17,477 INFO L78 Accepts]: Start accepts. Automaton has 290969 states and 483406 transitions. Word has length 787 [2024-12-01 13:21:17,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:21:17,478 INFO L471 AbstractCegarLoop]: Abstraction has 290969 states and 483406 transitions. [2024-12-01 13:21:17,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:21:17,478 INFO L276 IsEmpty]: Start isEmpty. Operand 290969 states and 483406 transitions. [2024-12-01 13:21:17,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2024-12-01 13:21:17,551 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:21:17,552 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:21:17,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-01 13:21:17,552 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:21:17,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:17,554 INFO L85 PathProgramCache]: Analyzing trace with hash -479162564, now seen corresponding path program 1 times [2024-12-01 13:21:17,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:21:17,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720718709] [2024-12-01 13:21:17,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:17,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:21:17,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:18,386 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-12-01 13:21:18,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:21:18,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720718709] [2024-12-01 13:21:18,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720718709] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:21:18,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:21:18,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 13:21:18,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482223933] [2024-12-01 13:21:18,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:18,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 13:21:18,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:21:18,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 13:21:18,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:21:18,391 INFO L87 Difference]: Start difference. First operand 290969 states and 483406 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:21:45,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:21:45,859 INFO L93 Difference]: Finished difference Result 674351 states and 1113415 transitions. [2024-12-01 13:21:45,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 13:21:45,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 787 [2024-12-01 13:21:45,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:21:47,105 INFO L225 Difference]: With dead ends: 674351 [2024-12-01 13:21:47,105 INFO L226 Difference]: Without dead ends: 358365 [2024-12-01 13:21:47,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:21:47,543 INFO L435 NwaCegarLoop]: 1267 mSDtfsCounter, 1127 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 2019 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-01 13:21:47,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1127 Valid, 2019 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-01 13:21:47,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358365 states. [2024-12-01 13:22:06,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358365 to 264059. [2024-12-01 13:22:07,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264059 states, 218058 states have (on average 1.5989415660053747) internal successors, (348662), 218578 states have internal predecessors, (348662), 44640 states have call successors, (44640), 1360 states have call predecessors, (44640), 1360 states have return successors, (44640), 44120 states have call predecessors, (44640), 44640 states have call successors, (44640) [2024-12-01 13:22:08,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264059 states to 264059 states and 437942 transitions. [2024-12-01 13:22:08,826 INFO L78 Accepts]: Start accepts. Automaton has 264059 states and 437942 transitions. Word has length 787 [2024-12-01 13:22:08,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:22:08,827 INFO L471 AbstractCegarLoop]: Abstraction has 264059 states and 437942 transitions. [2024-12-01 13:22:08,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-12-01 13:22:08,827 INFO L276 IsEmpty]: Start isEmpty. Operand 264059 states and 437942 transitions. [2024-12-01 13:22:08,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2024-12-01 13:22:08,880 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:22:08,881 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:22:08,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-01 13:22:08,881 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:22:08,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:22:08,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1466952448, now seen corresponding path program 1 times [2024-12-01 13:22:08,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:22:08,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012717199] [2024-12-01 13:22:08,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:22:08,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:22:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:22:11,070 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 156 proven. 219 refuted. 0 times theorem prover too weak. 31125 trivial. 0 not checked. [2024-12-01 13:22:11,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:22:11,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012717199] [2024-12-01 13:22:11,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012717199] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:22:11,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726766695] [2024-12-01 13:22:11,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:22:11,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:22:11,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:22:11,074 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:22:11,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-01 13:22:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:22:11,608 INFO L256 TraceCheckSpWp]: Trace formula consists of 1757 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-01 13:22:11,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:22:13,084 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 9069 proven. 63 refuted. 0 times theorem prover too weak. 22368 trivial. 0 not checked. [2024-12-01 13:22:13,084 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:22:14,180 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 312 proven. 63 refuted. 0 times theorem prover too weak. 31125 trivial. 0 not checked. [2024-12-01 13:22:14,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726766695] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 13:22:14,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 13:22:14,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 17 [2024-12-01 13:22:14,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118502816] [2024-12-01 13:22:14,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 13:22:14,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-01 13:22:14,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:22:14,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-01 13:22:14,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:22:14,186 INFO L87 Difference]: Start difference. First operand 264059 states and 437942 transitions. Second operand has 17 states, 17 states have (on average 25.0) internal successors, (425), 17 states have internal predecessors, (425), 6 states have call successors, (378), 3 states have call predecessors, (378), 6 states have return successors, (378), 6 states have call predecessors, (378), 6 states have call successors, (378) [2024-12-01 13:23:31,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:23:31,551 INFO L93 Difference]: Finished difference Result 1548581 states and 2563319 transitions. [2024-12-01 13:23:31,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-12-01 13:23:31,552 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 25.0) internal successors, (425), 17 states have internal predecessors, (425), 6 states have call successors, (378), 3 states have call predecessors, (378), 6 states have return successors, (378), 6 states have call predecessors, (378), 6 states have call successors, (378) Word has length 787 [2024-12-01 13:23:31,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:23:35,726 INFO L225 Difference]: With dead ends: 1548581 [2024-12-01 13:23:35,726 INFO L226 Difference]: Without dead ends: 1284525 [2024-12-01 13:23:36,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1622 GetRequests, 1573 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 658 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=582, Invalid=1968, Unknown=0, NotChecked=0, Total=2550 [2024-12-01 13:23:36,332 INFO L435 NwaCegarLoop]: 983 mSDtfsCounter, 4396 mSDsluCounter, 7124 mSDsCounter, 0 mSdLazyCounter, 6025 mSolverCounterSat, 1895 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4502 SdHoareTripleChecker+Valid, 8107 SdHoareTripleChecker+Invalid, 7920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1895 IncrementalHoareTripleChecker+Valid, 6025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:23:36,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4502 Valid, 8107 Invalid, 7920 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1895 Valid, 6025 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-12-01 13:23:36,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284525 states. [2024-12-01 13:24:38,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284525 to 806725. [2024-12-01 13:24:39,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806725 states, 679020 states have (on average 1.5986274336543842) internal successors, (1085500), 680828 states have internal predecessors, (1085500), 123072 states have call successors, (123072), 4632 states have call predecessors, (123072), 4632 states have return successors, (123072), 121264 states have call predecessors, (123072), 123072 states have call successors, (123072) [2024-12-01 13:24:43,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806725 states to 806725 states and 1331644 transitions. [2024-12-01 13:24:44,118 INFO L78 Accepts]: Start accepts. Automaton has 806725 states and 1331644 transitions. Word has length 787 [2024-12-01 13:24:44,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:24:44,118 INFO L471 AbstractCegarLoop]: Abstraction has 806725 states and 1331644 transitions. [2024-12-01 13:24:44,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 25.0) internal successors, (425), 17 states have internal predecessors, (425), 6 states have call successors, (378), 3 states have call predecessors, (378), 6 states have return successors, (378), 6 states have call predecessors, (378), 6 states have call successors, (378) [2024-12-01 13:24:44,119 INFO L276 IsEmpty]: Start isEmpty. Operand 806725 states and 1331644 transitions. [2024-12-01 13:24:44,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2024-12-01 13:24:44,324 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:24:44,324 INFO L218 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:44,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-01 13:24:44,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed37078b-7b6f-4549-9b9c-3cc98a78f8e3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:24:44,525 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:24:44,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:44,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1902957009, now seen corresponding path program 1 times [2024-12-01 13:24:44,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:24:44,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483270688] [2024-12-01 13:24:44,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:24:44,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:24:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:24:45,526 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-12-01 13:24:45,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:24:45,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483270688] [2024-12-01 13:24:45,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483270688] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:24:45,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:24:45,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 13:24:45,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355599968] [2024-12-01 13:24:45,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:24:45,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 13:24:45,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:24:45,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 13:24:45,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:24:45,532 INFO L87 Difference]: Start difference. First operand 806725 states and 1331644 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126)