./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-65.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_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/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_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-65.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/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_a74f20b2-dc7a-45e6-a764-431d1499f21a/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 31da68eea262c34083df1fad46a5753e80d18ad2f5e3cbbafbfb2efef5c55c33 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:20:26,216 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:20:26,270 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 06:20:26,273 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:20:26,274 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:20:26,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:20:26,294 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:20:26,294 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:20:26,295 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:20:26,295 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:20:26,295 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:20:26,295 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:20:26,295 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:20:26,296 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:20:26,296 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:20:26,296 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:20:26,296 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:20:26,296 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:20:26,296 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:20:26,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:20:26,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:20:26,296 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:20:26,296 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:20:26,297 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:20:26,297 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:20:26,297 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:20:26,297 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:20:26,297 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:20:26,297 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:20:26,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:20:26,297 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:20:26,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:20:26,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:20:26,298 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:20:26,298 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:20:26,298 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:20:26,298 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:20:26,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:20:26,298 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:20:26,298 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:20:26,298 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:20:26,298 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:20:26,299 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:20:26,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:20:26,299 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:20:26,299 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:20:26,299 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:20:26,299 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:20:26,299 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_a74f20b2-dc7a-45e6-a764-431d1499f21a/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 -> 31da68eea262c34083df1fad46a5753e80d18ad2f5e3cbbafbfb2efef5c55c33 [2024-12-02 06:20:26,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:20:26,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:20:26,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:20:26,510 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:20:26,510 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:20:26,511 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-65.i [2024-12-02 06:20:29,112 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/data/b90e53416/2f382106bddb43fcad23f78d13c6f82e/FLAGeec9c7926 [2024-12-02 06:20:29,339 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:20:29,340 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-65.i [2024-12-02 06:20:29,351 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/data/b90e53416/2f382106bddb43fcad23f78d13c6f82e/FLAGeec9c7926 [2024-12-02 06:20:29,672 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/data/b90e53416/2f382106bddb43fcad23f78d13c6f82e [2024-12-02 06:20:29,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:20:29,675 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:20:29,676 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:20:29,676 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:20:29,679 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:20:29,679 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:20:29" (1/1) ... [2024-12-02 06:20:29,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@600350b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:29, skipping insertion in model container [2024-12-02 06:20:29,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:20:29" (1/1) ... [2024-12-02 06:20:29,704 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:20:29,807 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_a74f20b2-dc7a-45e6-a764-431d1499f21a/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-65.i[916,929] [2024-12-02 06:20:29,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:20:29,932 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:20:29,943 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_a74f20b2-dc7a-45e6-a764-431d1499f21a/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-65.i[916,929] [2024-12-02 06:20:29,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:20:30,015 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:20:30,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:30 WrapperNode [2024-12-02 06:20:30,016 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:20:30,016 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:20:30,016 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:20:30,016 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:20:30,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:30" (1/1) ... [2024-12-02 06:20:30,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:30" (1/1) ... [2024-12-02 06:20:30,085 INFO L138 Inliner]: procedures = 26, calls = 83, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 571 [2024-12-02 06:20:30,085 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:20:30,086 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:20:30,086 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:20:30,086 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:20:30,093 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:30" (1/1) ... [2024-12-02 06:20:30,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:30" (1/1) ... [2024-12-02 06:20:30,100 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:30" (1/1) ... [2024-12-02 06:20:30,123 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 06:20:30,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:30" (1/1) ... [2024-12-02 06:20:30,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:30" (1/1) ... [2024-12-02 06:20:30,136 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:30" (1/1) ... [2024-12-02 06:20:30,138 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:30" (1/1) ... [2024-12-02 06:20:30,144 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:30" (1/1) ... [2024-12-02 06:20:30,148 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:30" (1/1) ... [2024-12-02 06:20:30,152 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:30" (1/1) ... [2024-12-02 06:20:30,157 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:20:30,158 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:20:30,158 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:20:30,158 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:20:30,159 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:30" (1/1) ... [2024-12-02 06:20:30,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:20:30,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:30,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:30,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:20:30,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:20:30,205 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 06:20:30,205 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 06:20:30,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:20:30,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:20:30,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:20:30,304 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:20:30,306 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:20:31,016 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-12-02 06:20:31,016 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:20:31,029 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:20:31,030 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 06:20:31,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:20:31 BoogieIcfgContainer [2024-12-02 06:20:31,030 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:20:31,032 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:20:31,032 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:20:31,036 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:20:31,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:20:29" (1/3) ... [2024-12-02 06:20:31,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6211f5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:20:31, skipping insertion in model container [2024-12-02 06:20:31,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:30" (2/3) ... [2024-12-02 06:20:31,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6211f5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:20:31, skipping insertion in model container [2024-12-02 06:20:31,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:20:31" (3/3) ... [2024-12-02 06:20:31,038 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-65.i [2024-12-02 06:20:31,049 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:20:31,051 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-65.i that has 2 procedures, 232 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 06:20:31,099 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:20:31,108 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;@145f42d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:20:31,108 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:20:31,112 INFO L276 IsEmpty]: Start isEmpty. Operand has 232 states, 159 states have (on average 1.5534591194968554) internal successors, (247), 160 states have internal predecessors, (247), 70 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 06:20:31,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2024-12-02 06:20:31,149 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:31,150 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:31,150 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:31,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:31,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1232808273, now seen corresponding path program 1 times [2024-12-02 06:20:31,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:31,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551612732] [2024-12-02 06:20:31,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:31,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:31,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:31,574 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 9522 trivial. 0 not checked. [2024-12-02 06:20:31,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:31,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551612732] [2024-12-02 06:20:31,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551612732] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:20:31,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954553375] [2024-12-02 06:20:31,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:31,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:20:31,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:31,581 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:20:31,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:20:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:31,888 INFO L256 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 06:20:31,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:31,948 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 9522 trivial. 0 not checked. [2024-12-02 06:20:31,948 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:20:31,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954553375] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:31,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:20:31,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 06:20:31,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027027491] [2024-12-02 06:20:31,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:31,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 06:20:31,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:31,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 06:20:31,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:20:31,972 INFO L87 Difference]: Start difference. First operand has 232 states, 159 states have (on average 1.5534591194968554) internal successors, (247), 160 states have internal predecessors, (247), 70 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) Second operand has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 2 states have call successors, (70) [2024-12-02 06:20:32,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:32,021 INFO L93 Difference]: Finished difference Result 455 states and 836 transitions. [2024-12-02 06:20:32,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 06:20:32,023 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 2 states have call successors, (70) Word has length 454 [2024-12-02 06:20:32,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:32,030 INFO L225 Difference]: With dead ends: 455 [2024-12-02 06:20:32,030 INFO L226 Difference]: Without dead ends: 226 [2024-12-02 06:20:32,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:20:32,037 INFO L435 NwaCegarLoop]: 372 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, 372 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:32,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:20:32,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-12-02 06:20:32,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2024-12-02 06:20:32,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 154 states have (on average 1.5064935064935066) internal successors, (232), 154 states have internal predecessors, (232), 70 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 06:20:32,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 372 transitions. [2024-12-02 06:20:32,090 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 372 transitions. Word has length 454 [2024-12-02 06:20:32,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:32,091 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 372 transitions. [2024-12-02 06:20:32,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 2 states have call successors, (70) [2024-12-02 06:20:32,091 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 372 transitions. [2024-12-02 06:20:32,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-12-02 06:20:32,100 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:32,101 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:32,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:20:32,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 06:20:32,302 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:32,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:32,303 INFO L85 PathProgramCache]: Analyzing trace with hash -789178051, now seen corresponding path program 1 times [2024-12-02 06:20:32,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:32,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62395695] [2024-12-02 06:20:32,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:32,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:32,737 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-12-02 06:20:32,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:32,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62395695] [2024-12-02 06:20:32,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62395695] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:32,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:32,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:20:32,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629934526] [2024-12-02 06:20:32,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:32,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:20:32,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:32,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:20:32,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:20:32,741 INFO L87 Difference]: Start difference. First operand 226 states and 372 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:32,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:32,845 INFO L93 Difference]: Finished difference Result 587 states and 971 transitions. [2024-12-02 06:20:32,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:20:32,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 455 [2024-12-02 06:20:32,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:32,851 INFO L225 Difference]: With dead ends: 587 [2024-12-02 06:20:32,851 INFO L226 Difference]: Without dead ends: 364 [2024-12-02 06:20:32,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:20:32,852 INFO L435 NwaCegarLoop]: 458 mSDtfsCounter, 211 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:32,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 806 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:20:32,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-12-02 06:20:32,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 361. [2024-12-02 06:20:32,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 264 states have (on average 1.5378787878787878) internal successors, (406), 265 states have internal predecessors, (406), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 93 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 06:20:32,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 594 transitions. [2024-12-02 06:20:32,899 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 594 transitions. Word has length 455 [2024-12-02 06:20:32,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:32,901 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 594 transitions. [2024-12-02 06:20:32,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:32,902 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 594 transitions. [2024-12-02 06:20:32,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-12-02 06:20:32,910 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:32,911 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:32,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:20:32,911 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:32,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:32,912 INFO L85 PathProgramCache]: Analyzing trace with hash -476537748, now seen corresponding path program 1 times [2024-12-02 06:20:32,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:32,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569875905] [2024-12-02 06:20:32,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:32,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:33,219 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-12-02 06:20:33,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:33,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569875905] [2024-12-02 06:20:33,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569875905] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:33,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:33,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:20:33,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333440639] [2024-12-02 06:20:33,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:33,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:20:33,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:33,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:20:33,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:20:33,222 INFO L87 Difference]: Start difference. First operand 361 states and 594 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:33,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:33,321 INFO L93 Difference]: Finished difference Result 1058 states and 1742 transitions. [2024-12-02 06:20:33,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:20:33,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 456 [2024-12-02 06:20:33,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:33,331 INFO L225 Difference]: With dead ends: 1058 [2024-12-02 06:20:33,331 INFO L226 Difference]: Without dead ends: 700 [2024-12-02 06:20:33,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:20:33,333 INFO L435 NwaCegarLoop]: 632 mSDtfsCounter, 349 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:33,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 985 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:20:33,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2024-12-02 06:20:33,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 698. [2024-12-02 06:20:33,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 505 states have (on average 1.5207920792079208) internal successors, (768), 507 states have internal predecessors, (768), 188 states have call successors, (188), 4 states have call predecessors, (188), 4 states have return successors, (188), 186 states have call predecessors, (188), 188 states have call successors, (188) [2024-12-02 06:20:33,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1144 transitions. [2024-12-02 06:20:33,432 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1144 transitions. Word has length 456 [2024-12-02 06:20:33,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:33,433 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 1144 transitions. [2024-12-02 06:20:33,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:33,433 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1144 transitions. [2024-12-02 06:20:33,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-12-02 06:20:33,437 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:33,437 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:33,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:20:33,438 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:33,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:33,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1320543250, now seen corresponding path program 1 times [2024-12-02 06:20:33,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:33,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335218762] [2024-12-02 06:20:33,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:33,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:33,649 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-12-02 06:20:33,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:33,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335218762] [2024-12-02 06:20:33,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335218762] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:33,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:33,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:20:33,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062303951] [2024-12-02 06:20:33,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:33,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:20:33,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:33,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:20:33,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:20:33,654 INFO L87 Difference]: Start difference. First operand 698 states and 1144 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:33,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:33,737 INFO L93 Difference]: Finished difference Result 1419 states and 2319 transitions. [2024-12-02 06:20:33,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:20:33,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 456 [2024-12-02 06:20:33,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:33,742 INFO L225 Difference]: With dead ends: 1419 [2024-12-02 06:20:33,742 INFO L226 Difference]: Without dead ends: 724 [2024-12-02 06:20:33,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:20:33,745 INFO L435 NwaCegarLoop]: 460 mSDtfsCounter, 200 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:33,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 808 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:20:33,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-12-02 06:20:33,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 564. [2024-12-02 06:20:33,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 419 states have (on average 1.529832935560859) internal successors, (641), 419 states have internal predecessors, (641), 140 states have call successors, (140), 4 states have call predecessors, (140), 4 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2024-12-02 06:20:33,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 921 transitions. [2024-12-02 06:20:33,794 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 921 transitions. Word has length 456 [2024-12-02 06:20:33,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:33,795 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 921 transitions. [2024-12-02 06:20:33,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:33,796 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 921 transitions. [2024-12-02 06:20:33,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-12-02 06:20:33,799 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:33,799 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:33,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:20:33,800 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:33,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:33,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1743245076, now seen corresponding path program 1 times [2024-12-02 06:20:33,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:33,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517496672] [2024-12-02 06:20:33,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:33,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:34,030 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-12-02 06:20:34,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:34,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517496672] [2024-12-02 06:20:34,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517496672] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:34,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:34,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:20:34,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893375932] [2024-12-02 06:20:34,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:34,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:20:34,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:34,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:20:34,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:20:34,033 INFO L87 Difference]: Start difference. First operand 564 states and 921 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:34,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:34,321 INFO L93 Difference]: Finished difference Result 1562 states and 2566 transitions. [2024-12-02 06:20:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:20:34,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 456 [2024-12-02 06:20:34,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:34,328 INFO L225 Difference]: With dead ends: 1562 [2024-12-02 06:20:34,328 INFO L226 Difference]: Without dead ends: 962 [2024-12-02 06:20:34,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:20:34,331 INFO L435 NwaCegarLoop]: 452 mSDtfsCounter, 772 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:34,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 1257 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:20:34,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2024-12-02 06:20:34,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 954. [2024-12-02 06:20:34,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 763 states have (on average 1.5386631716906947) internal successors, (1174), 765 states have internal predecessors, (1174), 184 states have call successors, (184), 6 states have call predecessors, (184), 6 states have return successors, (184), 182 states have call predecessors, (184), 184 states have call successors, (184) [2024-12-02 06:20:34,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1542 transitions. [2024-12-02 06:20:34,392 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1542 transitions. Word has length 456 [2024-12-02 06:20:34,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:34,393 INFO L471 AbstractCegarLoop]: Abstraction has 954 states and 1542 transitions. [2024-12-02 06:20:34,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:34,393 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1542 transitions. [2024-12-02 06:20:34,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-12-02 06:20:34,396 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:34,396 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:34,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:20:34,396 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:34,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:34,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1734073770, now seen corresponding path program 1 times [2024-12-02 06:20:34,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:34,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773378681] [2024-12-02 06:20:34,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:34,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:34,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:34,607 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-12-02 06:20:34,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:34,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773378681] [2024-12-02 06:20:34,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773378681] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:34,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:34,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:20:34,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550147252] [2024-12-02 06:20:34,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:34,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:20:34,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:34,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:20:34,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:20:34,609 INFO L87 Difference]: Start difference. First operand 954 states and 1542 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:34,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:34,731 INFO L93 Difference]: Finished difference Result 2856 states and 4620 transitions. [2024-12-02 06:20:34,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:20:34,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 456 [2024-12-02 06:20:34,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:34,746 INFO L225 Difference]: With dead ends: 2856 [2024-12-02 06:20:34,746 INFO L226 Difference]: Without dead ends: 1905 [2024-12-02 06:20:34,748 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:20:34,749 INFO L435 NwaCegarLoop]: 712 mSDtfsCounter, 355 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:34,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 1064 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:20:34,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1905 states. [2024-12-02 06:20:34,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1905 to 1022. [2024-12-02 06:20:34,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 831 states have (on average 1.5282791817087846) internal successors, (1270), 833 states have internal predecessors, (1270), 184 states have call successors, (184), 6 states have call predecessors, (184), 6 states have return successors, (184), 182 states have call predecessors, (184), 184 states have call successors, (184) [2024-12-02 06:20:34,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1638 transitions. [2024-12-02 06:20:34,822 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1638 transitions. Word has length 456 [2024-12-02 06:20:34,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:34,823 INFO L471 AbstractCegarLoop]: Abstraction has 1022 states and 1638 transitions. [2024-12-02 06:20:34,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:34,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1638 transitions. [2024-12-02 06:20:34,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-12-02 06:20:34,827 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:34,827 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:34,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 06:20:34,827 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:34,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:34,828 INFO L85 PathProgramCache]: Analyzing trace with hash -655807904, now seen corresponding path program 1 times [2024-12-02 06:20:34,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:34,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743712607] [2024-12-02 06:20:34,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:34,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:35,006 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-12-02 06:20:35,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:35,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743712607] [2024-12-02 06:20:35,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743712607] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:35,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:35,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:20:35,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442503834] [2024-12-02 06:20:35,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:35,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:20:35,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:35,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:20:35,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:20:35,009 INFO L87 Difference]: Start difference. First operand 1022 states and 1638 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:35,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:35,075 INFO L93 Difference]: Finished difference Result 1965 states and 3145 transitions. [2024-12-02 06:20:35,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:20:35,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 457 [2024-12-02 06:20:35,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:35,080 INFO L225 Difference]: With dead ends: 1965 [2024-12-02 06:20:35,080 INFO L226 Difference]: Without dead ends: 946 [2024-12-02 06:20:35,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:20:35,082 INFO L435 NwaCegarLoop]: 361 mSDtfsCounter, 0 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:35,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 714 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:20:35,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2024-12-02 06:20:35,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 946. [2024-12-02 06:20:35,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 755 states have (on average 1.5072847682119206) internal successors, (1138), 757 states have internal predecessors, (1138), 184 states have call successors, (184), 6 states have call predecessors, (184), 6 states have return successors, (184), 182 states have call predecessors, (184), 184 states have call successors, (184) [2024-12-02 06:20:35,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1506 transitions. [2024-12-02 06:20:35,130 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1506 transitions. Word has length 457 [2024-12-02 06:20:35,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:35,131 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1506 transitions. [2024-12-02 06:20:35,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:35,131 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1506 transitions. [2024-12-02 06:20:35,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-12-02 06:20:35,134 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:35,134 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:35,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 06:20:35,134 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:35,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:35,135 INFO L85 PathProgramCache]: Analyzing trace with hash 814925935, now seen corresponding path program 1 times [2024-12-02 06:20:35,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:35,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072748094] [2024-12-02 06:20:35,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:35,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:35,382 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-12-02 06:20:35,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:35,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072748094] [2024-12-02 06:20:35,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072748094] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:35,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:35,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:20:35,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503033797] [2024-12-02 06:20:35,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:35,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:20:35,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:35,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:20:35,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:20:35,384 INFO L87 Difference]: Start difference. First operand 946 states and 1506 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:35,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:35,437 INFO L93 Difference]: Finished difference Result 1889 states and 3009 transitions. [2024-12-02 06:20:35,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:20:35,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 458 [2024-12-02 06:20:35,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:35,442 INFO L225 Difference]: With dead ends: 1889 [2024-12-02 06:20:35,442 INFO L226 Difference]: Without dead ends: 946 [2024-12-02 06:20:35,444 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:20:35,444 INFO L435 NwaCegarLoop]: 355 mSDtfsCounter, 244 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:35,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 355 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:20:35,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2024-12-02 06:20:35,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 946. [2024-12-02 06:20:35,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 755 states have (on average 1.504635761589404) internal successors, (1136), 757 states have internal predecessors, (1136), 184 states have call successors, (184), 6 states have call predecessors, (184), 6 states have return successors, (184), 182 states have call predecessors, (184), 184 states have call successors, (184) [2024-12-02 06:20:35,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1504 transitions. [2024-12-02 06:20:35,519 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1504 transitions. Word has length 458 [2024-12-02 06:20:35,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:35,520 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1504 transitions. [2024-12-02 06:20:35,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:35,520 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1504 transitions. [2024-12-02 06:20:35,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-12-02 06:20:35,524 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:35,525 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:35,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 06:20:35,525 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:35,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:35,526 INFO L85 PathProgramCache]: Analyzing trace with hash 802039058, now seen corresponding path program 1 times [2024-12-02 06:20:35,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:35,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908535665] [2024-12-02 06:20:35,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:35,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:36,669 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-12-02 06:20:36,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:36,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908535665] [2024-12-02 06:20:36,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908535665] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:36,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:36,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:20:36,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102053806] [2024-12-02 06:20:36,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:36,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:20:36,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:36,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:20:36,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:20:36,672 INFO L87 Difference]: Start difference. First operand 946 states and 1504 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:37,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:37,830 INFO L93 Difference]: Finished difference Result 3355 states and 5371 transitions. [2024-12-02 06:20:37,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:20:37,831 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 460 [2024-12-02 06:20:37,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:37,841 INFO L225 Difference]: With dead ends: 3355 [2024-12-02 06:20:37,841 INFO L226 Difference]: Without dead ends: 2412 [2024-12-02 06:20:37,844 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:20:37,844 INFO L435 NwaCegarLoop]: 995 mSDtfsCounter, 890 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 2501 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:37,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 2501 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 06:20:37,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2024-12-02 06:20:37,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 1000. [2024-12-02 06:20:37,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 783 states have (on average 1.4865900383141764) internal successors, (1164), 786 states have internal predecessors, (1164), 208 states have call successors, (208), 8 states have call predecessors, (208), 8 states have return successors, (208), 205 states have call predecessors, (208), 208 states have call successors, (208) [2024-12-02 06:20:37,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1580 transitions. [2024-12-02 06:20:37,962 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1580 transitions. Word has length 460 [2024-12-02 06:20:37,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:37,963 INFO L471 AbstractCegarLoop]: Abstraction has 1000 states and 1580 transitions. [2024-12-02 06:20:37,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:37,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1580 transitions. [2024-12-02 06:20:37,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-12-02 06:20:37,966 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:37,966 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:37,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 06:20:37,966 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:37,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:37,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1005588653, now seen corresponding path program 1 times [2024-12-02 06:20:37,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:37,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055110610] [2024-12-02 06:20:37,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:37,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:39,483 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-12-02 06:20:39,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:39,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055110610] [2024-12-02 06:20:39,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055110610] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:39,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:39,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:20:39,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209712604] [2024-12-02 06:20:39,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:39,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:20:39,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:39,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:20:39,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:20:39,485 INFO L87 Difference]: Start difference. First operand 1000 states and 1580 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) [2024-12-02 06:20:40,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:40,471 INFO L93 Difference]: Finished difference Result 1987 states and 3116 transitions. [2024-12-02 06:20:40,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:20:40,472 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) Word has length 461 [2024-12-02 06:20:40,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:40,480 INFO L225 Difference]: With dead ends: 1987 [2024-12-02 06:20:40,480 INFO L226 Difference]: Without dead ends: 1036 [2024-12-02 06:20:40,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 06:20:40,484 INFO L435 NwaCegarLoop]: 379 mSDtfsCounter, 447 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:40,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 923 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 06:20:40,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2024-12-02 06:20:40,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1036. [2024-12-02 06:20:40,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1036 states, 810 states have (on average 1.4654320987654321) internal successors, (1187), 813 states have internal predecessors, (1187), 208 states have call successors, (208), 17 states have call predecessors, (208), 17 states have return successors, (208), 205 states have call predecessors, (208), 208 states have call successors, (208) [2024-12-02 06:20:40,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1603 transitions. [2024-12-02 06:20:40,643 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1603 transitions. Word has length 461 [2024-12-02 06:20:40,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:40,644 INFO L471 AbstractCegarLoop]: Abstraction has 1036 states and 1603 transitions. [2024-12-02 06:20:40,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) [2024-12-02 06:20:40,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1603 transitions. [2024-12-02 06:20:40,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-12-02 06:20:40,648 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:40,649 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:40,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 06:20:40,649 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:40,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:40,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1685647023, now seen corresponding path program 1 times [2024-12-02 06:20:40,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:40,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887642247] [2024-12-02 06:20:40,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:40,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:41,602 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-12-02 06:20:41,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:41,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887642247] [2024-12-02 06:20:41,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887642247] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:41,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:41,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:20:41,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358307762] [2024-12-02 06:20:41,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:41,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:20:41,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:41,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:20:41,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:20:41,604 INFO L87 Difference]: Start difference. First operand 1036 states and 1603 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:43,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:43,095 INFO L93 Difference]: Finished difference Result 3463 states and 5442 transitions. [2024-12-02 06:20:43,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:20:43,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 461 [2024-12-02 06:20:43,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:43,103 INFO L225 Difference]: With dead ends: 3463 [2024-12-02 06:20:43,103 INFO L226 Difference]: Without dead ends: 2480 [2024-12-02 06:20:43,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:20:43,106 INFO L435 NwaCegarLoop]: 995 mSDtfsCounter, 1076 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 2807 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:43,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 2807 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 06:20:43,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2024-12-02 06:20:43,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 1028. [2024-12-02 06:20:43,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 802 states have (on average 1.4650872817955112) internal successors, (1175), 805 states have internal predecessors, (1175), 208 states have call successors, (208), 17 states have call predecessors, (208), 17 states have return successors, (208), 205 states have call predecessors, (208), 208 states have call successors, (208) [2024-12-02 06:20:43,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1591 transitions. [2024-12-02 06:20:43,216 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1591 transitions. Word has length 461 [2024-12-02 06:20:43,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:43,216 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1591 transitions. [2024-12-02 06:20:43,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:43,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1591 transitions. [2024-12-02 06:20:43,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2024-12-02 06:20:43,219 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:43,219 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:43,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 06:20:43,219 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:43,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:43,220 INFO L85 PathProgramCache]: Analyzing trace with hash 445077320, now seen corresponding path program 1 times [2024-12-02 06:20:43,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:43,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911760146] [2024-12-02 06:20:43,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:43,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:45,296 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-12-02 06:20:45,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:45,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911760146] [2024-12-02 06:20:45,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911760146] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:45,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:45,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:20:45,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142877897] [2024-12-02 06:20:45,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:45,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:20:45,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:45,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:20:45,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:20:45,298 INFO L87 Difference]: Start difference. First operand 1028 states and 1591 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 2 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2024-12-02 06:20:47,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:47,454 INFO L93 Difference]: Finished difference Result 3498 states and 5332 transitions. [2024-12-02 06:20:47,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:20:47,454 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 2 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 464 [2024-12-02 06:20:47,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:47,462 INFO L225 Difference]: With dead ends: 3498 [2024-12-02 06:20:47,462 INFO L226 Difference]: Without dead ends: 2523 [2024-12-02 06:20:47,464 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:20:47,464 INFO L435 NwaCegarLoop]: 479 mSDtfsCounter, 1002 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 809 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 809 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:47,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1002 Valid, 1096 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [809 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 06:20:47,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2523 states. [2024-12-02 06:20:47,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2523 to 2257. [2024-12-02 06:20:47,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2257 states, 1623 states have (on average 1.3555144793592113) internal successors, (2200), 1634 states have internal predecessors, (2200), 580 states have call successors, (580), 53 states have call predecessors, (580), 53 states have return successors, (580), 569 states have call predecessors, (580), 580 states have call successors, (580) [2024-12-02 06:20:47,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2257 states to 2257 states and 3360 transitions. [2024-12-02 06:20:47,815 INFO L78 Accepts]: Start accepts. Automaton has 2257 states and 3360 transitions. Word has length 464 [2024-12-02 06:20:47,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:47,816 INFO L471 AbstractCegarLoop]: Abstraction has 2257 states and 3360 transitions. [2024-12-02 06:20:47,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 2 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2024-12-02 06:20:47,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2257 states and 3360 transitions. [2024-12-02 06:20:47,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2024-12-02 06:20:47,819 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:47,819 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:47,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 06:20:47,819 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:47,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:47,820 INFO L85 PathProgramCache]: Analyzing trace with hash 467709574, now seen corresponding path program 1 times [2024-12-02 06:20:47,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:47,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472380721] [2024-12-02 06:20:47,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:47,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:48,375 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-12-02 06:20:48,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:48,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472380721] [2024-12-02 06:20:48,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472380721] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:48,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:48,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:20:48,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849076602] [2024-12-02 06:20:48,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:48,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:20:48,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:48,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:20:48,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:20:48,377 INFO L87 Difference]: Start difference. First operand 2257 states and 3360 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:49,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:49,366 INFO L93 Difference]: Finished difference Result 6465 states and 9532 transitions. [2024-12-02 06:20:49,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:20:49,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 464 [2024-12-02 06:20:49,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:49,379 INFO L225 Difference]: With dead ends: 6465 [2024-12-02 06:20:49,379 INFO L226 Difference]: Without dead ends: 4306 [2024-12-02 06:20:49,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:20:49,383 INFO L435 NwaCegarLoop]: 662 mSDtfsCounter, 677 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:49,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 1522 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:20:49,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4306 states. [2024-12-02 06:20:49,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4306 to 2272. [2024-12-02 06:20:49,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2272 states, 1638 states have (on average 1.3595848595848596) internal successors, (2227), 1649 states have internal predecessors, (2227), 580 states have call successors, (580), 53 states have call predecessors, (580), 53 states have return successors, (580), 569 states have call predecessors, (580), 580 states have call successors, (580) [2024-12-02 06:20:49,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2272 states to 2272 states and 3387 transitions. [2024-12-02 06:20:49,715 INFO L78 Accepts]: Start accepts. Automaton has 2272 states and 3387 transitions. Word has length 464 [2024-12-02 06:20:49,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:49,716 INFO L471 AbstractCegarLoop]: Abstraction has 2272 states and 3387 transitions. [2024-12-02 06:20:49,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:49,716 INFO L276 IsEmpty]: Start isEmpty. Operand 2272 states and 3387 transitions. [2024-12-02 06:20:49,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-12-02 06:20:49,727 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:49,728 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:49,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 06:20:49,728 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:49,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:49,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1624911769, now seen corresponding path program 1 times [2024-12-02 06:20:49,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:49,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305442492] [2024-12-02 06:20:49,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:49,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:49,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:49,831 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-12-02 06:20:49,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:49,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305442492] [2024-12-02 06:20:49,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305442492] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:49,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:49,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:20:49,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666605537] [2024-12-02 06:20:49,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:49,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:20:49,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:49,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:20:49,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:20:49,833 INFO L87 Difference]: Start difference. First operand 2272 states and 3387 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:50,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:50,202 INFO L93 Difference]: Finished difference Result 4531 states and 6748 transitions. [2024-12-02 06:20:50,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:20:50,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 465 [2024-12-02 06:20:50,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:50,214 INFO L225 Difference]: With dead ends: 4531 [2024-12-02 06:20:50,214 INFO L226 Difference]: Without dead ends: 2357 [2024-12-02 06:20:50,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:20:50,218 INFO L435 NwaCegarLoop]: 516 mSDtfsCounter, 191 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:50,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 858 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:20:50,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2357 states. [2024-12-02 06:20:50,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2357 to 1821. [2024-12-02 06:20:50,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1331 states have (on average 1.3944402704733283) internal successors, (1856), 1336 states have internal predecessors, (1856), 448 states have call successors, (448), 41 states have call predecessors, (448), 41 states have return successors, (448), 443 states have call predecessors, (448), 448 states have call successors, (448) [2024-12-02 06:20:50,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2752 transitions. [2024-12-02 06:20:50,644 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2752 transitions. Word has length 465 [2024-12-02 06:20:50,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:50,644 INFO L471 AbstractCegarLoop]: Abstraction has 1821 states and 2752 transitions. [2024-12-02 06:20:50,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:50,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2752 transitions. [2024-12-02 06:20:50,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-12-02 06:20:50,650 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:50,650 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:50,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 06:20:50,650 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:50,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:50,651 INFO L85 PathProgramCache]: Analyzing trace with hash 895427299, now seen corresponding path program 1 times [2024-12-02 06:20:50,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:50,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284911541] [2024-12-02 06:20:50,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:50,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:50,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:51,121 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-12-02 06:20:51,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:51,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284911541] [2024-12-02 06:20:51,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284911541] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:51,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:51,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:20:51,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750902299] [2024-12-02 06:20:51,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:51,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:20:51,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:51,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:20:51,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:20:51,123 INFO L87 Difference]: Start difference. First operand 1821 states and 2752 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:52,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:52,201 INFO L93 Difference]: Finished difference Result 4933 states and 7361 transitions. [2024-12-02 06:20:52,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:20:52,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 465 [2024-12-02 06:20:52,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:52,214 INFO L225 Difference]: With dead ends: 4933 [2024-12-02 06:20:52,215 INFO L226 Difference]: Without dead ends: 3210 [2024-12-02 06:20:52,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:20:52,219 INFO L435 NwaCegarLoop]: 869 mSDtfsCounter, 872 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 1845 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:52,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 1845 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:20:52,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3210 states. [2024-12-02 06:20:52,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3210 to 1767. [2024-12-02 06:20:52,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1767 states, 1277 states have (on average 1.3821456538762724) internal successors, (1765), 1282 states have internal predecessors, (1765), 448 states have call successors, (448), 41 states have call predecessors, (448), 41 states have return successors, (448), 443 states have call predecessors, (448), 448 states have call successors, (448) [2024-12-02 06:20:52,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 2661 transitions. [2024-12-02 06:20:52,617 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 2661 transitions. Word has length 465 [2024-12-02 06:20:52,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:52,618 INFO L471 AbstractCegarLoop]: Abstraction has 1767 states and 2661 transitions. [2024-12-02 06:20:52,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:52,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 2661 transitions. [2024-12-02 06:20:52,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-12-02 06:20:52,620 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:52,620 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:52,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 06:20:52,620 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:52,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:52,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1679304667, now seen corresponding path program 1 times [2024-12-02 06:20:52,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:52,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725316486] [2024-12-02 06:20:52,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:52,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:52,879 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-12-02 06:20:52,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:52,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725316486] [2024-12-02 06:20:52,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725316486] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:52,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:52,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:20:52,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179050619] [2024-12-02 06:20:52,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:52,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:20:52,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:52,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:20:52,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:20:52,881 INFO L87 Difference]: Start difference. First operand 1767 states and 2661 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:53,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:53,690 INFO L93 Difference]: Finished difference Result 5832 states and 8708 transitions. [2024-12-02 06:20:53,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:20:53,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 465 [2024-12-02 06:20:53,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:53,704 INFO L225 Difference]: With dead ends: 5832 [2024-12-02 06:20:53,704 INFO L226 Difference]: Without dead ends: 4163 [2024-12-02 06:20:53,708 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:20:53,708 INFO L435 NwaCegarLoop]: 580 mSDtfsCounter, 449 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:53,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 1146 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:20:53,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4163 states. [2024-12-02 06:20:54,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4163 to 4147. [2024-12-02 06:20:54,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4147 states, 3284 states have (on average 1.4123020706455542) internal successors, (4638), 3301 states have internal predecessors, (4638), 766 states have call successors, (766), 96 states have call predecessors, (766), 96 states have return successors, (766), 749 states have call predecessors, (766), 766 states have call successors, (766) [2024-12-02 06:20:54,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4147 states to 4147 states and 6170 transitions. [2024-12-02 06:20:54,512 INFO L78 Accepts]: Start accepts. Automaton has 4147 states and 6170 transitions. Word has length 465 [2024-12-02 06:20:54,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:54,513 INFO L471 AbstractCegarLoop]: Abstraction has 4147 states and 6170 transitions. [2024-12-02 06:20:54,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:54,513 INFO L276 IsEmpty]: Start isEmpty. Operand 4147 states and 6170 transitions. [2024-12-02 06:20:54,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-12-02 06:20:54,519 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:54,519 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:54,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 06:20:54,519 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:54,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:54,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1118604889, now seen corresponding path program 1 times [2024-12-02 06:20:54,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:54,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529298841] [2024-12-02 06:20:54,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:54,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:55,201 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 18 proven. 189 refuted. 0 times theorem prover too weak. 9453 trivial. 0 not checked. [2024-12-02 06:20:55,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:55,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529298841] [2024-12-02 06:20:55,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529298841] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:20:55,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837084259] [2024-12-02 06:20:55,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:55,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:20:55,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:55,205 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:20:55,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 06:20:55,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:55,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 1064 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 06:20:55,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:56,026 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-12-02 06:20:56,027 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:20:56,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837084259] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:56,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:20:56,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-12-02 06:20:56,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110148470] [2024-12-02 06:20:56,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:56,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:20:56,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:56,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:20:56,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:20:56,029 INFO L87 Difference]: Start difference. First operand 4147 states and 6170 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:20:59,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:59,297 INFO L93 Difference]: Finished difference Result 18770 states and 27785 transitions. [2024-12-02 06:20:59,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:20:59,297 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 465 [2024-12-02 06:20:59,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:59,330 INFO L225 Difference]: With dead ends: 18770 [2024-12-02 06:20:59,330 INFO L226 Difference]: Without dead ends: 14725 [2024-12-02 06:20:59,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:20:59,337 INFO L435 NwaCegarLoop]: 837 mSDtfsCounter, 776 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 2122 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:59,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 2122 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 06:20:59,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14725 states. [2024-12-02 06:21:01,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14725 to 14653. [2024-12-02 06:21:01,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14653 states, 11524 states have (on average 1.3950885109337037) internal successors, (16077), 11591 states have internal predecessors, (16077), 2764 states have call successors, (2764), 364 states have call predecessors, (2764), 364 states have return successors, (2764), 2697 states have call predecessors, (2764), 2764 states have call successors, (2764) [2024-12-02 06:21:01,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14653 states to 14653 states and 21605 transitions. [2024-12-02 06:21:01,661 INFO L78 Accepts]: Start accepts. Automaton has 14653 states and 21605 transitions. Word has length 465 [2024-12-02 06:21:01,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:21:01,662 INFO L471 AbstractCegarLoop]: Abstraction has 14653 states and 21605 transitions. [2024-12-02 06:21:01,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:21:01,662 INFO L276 IsEmpty]: Start isEmpty. Operand 14653 states and 21605 transitions. [2024-12-02 06:21:01,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-12-02 06:21:01,668 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:21:01,668 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:21:01,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 06:21:01,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 06:21:01,869 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:21:01,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:21:01,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1248089705, now seen corresponding path program 1 times [2024-12-02 06:21:01,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:21:01,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627794819] [2024-12-02 06:21:01,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:01,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:21:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:21:02,417 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 18 proven. 189 refuted. 0 times theorem prover too weak. 9453 trivial. 0 not checked. [2024-12-02 06:21:02,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:21:02,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627794819] [2024-12-02 06:21:02,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627794819] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:21:02,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129822671] [2024-12-02 06:21:02,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:02,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:21:02,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:21:02,420 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:21:02,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 06:21:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:21:02,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 1065 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 06:21:02,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:21:02,899 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 4689 proven. 81 refuted. 0 times theorem prover too weak. 4890 trivial. 0 not checked. [2024-12-02 06:21:02,899 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:21:03,223 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 126 proven. 81 refuted. 0 times theorem prover too weak. 9453 trivial. 0 not checked. [2024-12-02 06:21:03,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129822671] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:21:03,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:21:03,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2024-12-02 06:21:03,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287674824] [2024-12-02 06:21:03,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:21:03,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 06:21:03,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:21:03,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 06:21:03,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:21:03,226 INFO L87 Difference]: Start difference. First operand 14653 states and 21605 transitions. Second operand has 10 states, 10 states have (on average 26.1) internal successors, (261), 10 states have internal predecessors, (261), 4 states have call successors, (160), 2 states have call predecessors, (160), 4 states have return successors, (162), 4 states have call predecessors, (162), 4 states have call successors, (162) [2024-12-02 06:21:06,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:21:06,354 INFO L93 Difference]: Finished difference Result 29463 states and 42845 transitions. [2024-12-02 06:21:06,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 06:21:06,354 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 26.1) internal successors, (261), 10 states have internal predecessors, (261), 4 states have call successors, (160), 2 states have call predecessors, (160), 4 states have return successors, (162), 4 states have call predecessors, (162), 4 states have call successors, (162) Word has length 465 [2024-12-02 06:21:06,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:21:06,409 INFO L225 Difference]: With dead ends: 29463 [2024-12-02 06:21:06,409 INFO L226 Difference]: Without dead ends: 14783 [2024-12-02 06:21:06,438 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 950 GetRequests, 929 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=167, Invalid=339, Unknown=0, NotChecked=0, Total=506 [2024-12-02 06:21:06,438 INFO L435 NwaCegarLoop]: 315 mSDtfsCounter, 696 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:21:06,439 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 998 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 06:21:06,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14783 states. [2024-12-02 06:21:09,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14783 to 14217. [2024-12-02 06:21:09,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14217 states, 11290 states have (on average 1.3655447298494243) internal successors, (15417), 11393 states have internal predecessors, (15417), 2518 states have call successors, (2518), 408 states have call predecessors, (2518), 408 states have return successors, (2518), 2415 states have call predecessors, (2518), 2518 states have call successors, (2518) [2024-12-02 06:21:09,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14217 states to 14217 states and 20453 transitions. [2024-12-02 06:21:09,090 INFO L78 Accepts]: Start accepts. Automaton has 14217 states and 20453 transitions. Word has length 465 [2024-12-02 06:21:09,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:21:09,090 INFO L471 AbstractCegarLoop]: Abstraction has 14217 states and 20453 transitions. [2024-12-02 06:21:09,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 26.1) internal successors, (261), 10 states have internal predecessors, (261), 4 states have call successors, (160), 2 states have call predecessors, (160), 4 states have return successors, (162), 4 states have call predecessors, (162), 4 states have call successors, (162) [2024-12-02 06:21:09,091 INFO L276 IsEmpty]: Start isEmpty. Operand 14217 states and 20453 transitions. [2024-12-02 06:21:09,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2024-12-02 06:21:09,097 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:21:09,097 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:21:09,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 06:21:09,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 06:21:09,298 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:21:09,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:21:09,298 INFO L85 PathProgramCache]: Analyzing trace with hash 701113844, now seen corresponding path program 1 times [2024-12-02 06:21:09,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:21:09,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173849884] [2024-12-02 06:21:09,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:09,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:21:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:21:09,626 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-12-02 06:21:09,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:21:09,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173849884] [2024-12-02 06:21:09,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173849884] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:21:09,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:21:09,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:21:09,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959670] [2024-12-02 06:21:09,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:21:09,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:21:09,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:21:09,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:21:09,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:21:09,629 INFO L87 Difference]: Start difference. First operand 14217 states and 20453 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:21:14,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:21:14,822 INFO L93 Difference]: Finished difference Result 41351 states and 59049 transitions. [2024-12-02 06:21:14,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:21:14,822 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 466 [2024-12-02 06:21:14,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:21:14,878 INFO L225 Difference]: With dead ends: 41351 [2024-12-02 06:21:14,878 INFO L226 Difference]: Without dead ends: 27244 [2024-12-02 06:21:14,895 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:21:14,895 INFO L435 NwaCegarLoop]: 684 mSDtfsCounter, 398 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 2053 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:21:14,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 2053 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:21:14,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27244 states. [2024-12-02 06:21:18,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27244 to 18113. [2024-12-02 06:21:18,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18113 states, 14126 states have (on average 1.3074472603709473) internal successors, (18469), 14283 states have internal predecessors, (18469), 3241 states have call successors, (3241), 745 states have call predecessors, (3241), 745 states have return successors, (3241), 3084 states have call predecessors, (3241), 3241 states have call successors, (3241) [2024-12-02 06:21:18,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18113 states to 18113 states and 24951 transitions. [2024-12-02 06:21:18,403 INFO L78 Accepts]: Start accepts. Automaton has 18113 states and 24951 transitions. Word has length 466 [2024-12-02 06:21:18,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:21:18,403 INFO L471 AbstractCegarLoop]: Abstraction has 18113 states and 24951 transitions. [2024-12-02 06:21:18,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:21:18,403 INFO L276 IsEmpty]: Start isEmpty. Operand 18113 states and 24951 transitions. [2024-12-02 06:21:18,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2024-12-02 06:21:18,411 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:21:18,411 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:21:18,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 06:21:18,411 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:21:18,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:21:18,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1123815670, now seen corresponding path program 1 times [2024-12-02 06:21:18,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:21:18,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171464181] [2024-12-02 06:21:18,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:18,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:21:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:21:18,587 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-12-02 06:21:18,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:21:18,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171464181] [2024-12-02 06:21:18,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171464181] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:21:18,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:21:18,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:21:18,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384064326] [2024-12-02 06:21:18,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:21:18,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:21:18,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:21:18,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:21:18,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:21:18,589 INFO L87 Difference]: Start difference. First operand 18113 states and 24951 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:21:22,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:21:22,545 INFO L93 Difference]: Finished difference Result 41832 states and 58205 transitions. [2024-12-02 06:21:22,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:21:22,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 466 [2024-12-02 06:21:22,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:21:22,594 INFO L225 Difference]: With dead ends: 41832 [2024-12-02 06:21:22,594 INFO L226 Difference]: Without dead ends: 23829 [2024-12-02 06:21:22,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:21:22,616 INFO L435 NwaCegarLoop]: 343 mSDtfsCounter, 298 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:21:22,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 1209 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:21:22,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23829 states. [2024-12-02 06:21:26,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23829 to 22409. [2024-12-02 06:21:26,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22409 states, 18490 states have (on average 1.3694429421308816) internal successors, (25321), 18646 states have internal predecessors, (25321), 3184 states have call successors, (3184), 734 states have call predecessors, (3184), 734 states have return successors, (3184), 3028 states have call predecessors, (3184), 3184 states have call successors, (3184) [2024-12-02 06:21:26,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22409 states to 22409 states and 31689 transitions. [2024-12-02 06:21:26,173 INFO L78 Accepts]: Start accepts. Automaton has 22409 states and 31689 transitions. Word has length 466 [2024-12-02 06:21:26,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:21:26,174 INFO L471 AbstractCegarLoop]: Abstraction has 22409 states and 31689 transitions. [2024-12-02 06:21:26,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:21:26,174 INFO L276 IsEmpty]: Start isEmpty. Operand 22409 states and 31689 transitions. [2024-12-02 06:21:26,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2024-12-02 06:21:26,179 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:21:26,179 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:21:26,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 06:21:26,180 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:21:26,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:21:26,180 INFO L85 PathProgramCache]: Analyzing trace with hash 682245303, now seen corresponding path program 1 times [2024-12-02 06:21:26,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:21:26,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67573384] [2024-12-02 06:21:26,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:26,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:21:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:21:27,277 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 195 proven. 12 refuted. 0 times theorem prover too weak. 9453 trivial. 0 not checked. [2024-12-02 06:21:27,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:21:27,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67573384] [2024-12-02 06:21:27,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67573384] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:21:27,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512055093] [2024-12-02 06:21:27,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:27,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:21:27,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:21:27,279 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:21:27,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 06:21:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:21:27,563 INFO L256 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 06:21:27,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:21:28,993 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 4157 proven. 39 refuted. 0 times theorem prover too weak. 5464 trivial. 0 not checked. [2024-12-02 06:21:28,994 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:21:32,979 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 369 proven. 42 refuted. 0 times theorem prover too weak. 9249 trivial. 0 not checked. [2024-12-02 06:21:32,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512055093] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:21:32,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:21:32,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 26 [2024-12-02 06:21:32,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361460583] [2024-12-02 06:21:32,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:21:32,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-02 06:21:32,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:21:32,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-02 06:21:32,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2024-12-02 06:21:32,982 INFO L87 Difference]: Start difference. First operand 22409 states and 31689 transitions. Second operand has 26 states, 26 states have (on average 10.807692307692308) internal successors, (281), 26 states have internal predecessors, (281), 10 states have call successors, (158), 5 states have call predecessors, (158), 10 states have return successors, (158), 10 states have call predecessors, (158), 10 states have call successors, (158) [2024-12-02 06:21:47,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:21:47,159 INFO L93 Difference]: Finished difference Result 47393 states and 65404 transitions. [2024-12-02 06:21:47,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-12-02 06:21:47,160 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.807692307692308) internal successors, (281), 26 states have internal predecessors, (281), 10 states have call successors, (158), 5 states have call predecessors, (158), 10 states have return successors, (158), 10 states have call predecessors, (158), 10 states have call successors, (158) Word has length 467 [2024-12-02 06:21:47,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:21:47,230 INFO L225 Difference]: With dead ends: 47393 [2024-12-02 06:21:47,230 INFO L226 Difference]: Without dead ends: 27904 [2024-12-02 06:21:47,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 986 GetRequests, 924 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 957 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1171, Invalid=2861, Unknown=0, NotChecked=0, Total=4032 [2024-12-02 06:21:47,251 INFO L435 NwaCegarLoop]: 439 mSDtfsCounter, 2997 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 1869 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3049 SdHoareTripleChecker+Valid, 2172 SdHoareTripleChecker+Invalid, 3792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1869 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:21:47,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3049 Valid, 2172 Invalid, 3792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1869 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-12-02 06:21:47,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27904 states. [2024-12-02 06:21:49,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27904 to 11246. [2024-12-02 06:21:49,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11246 states, 9844 states have (on average 1.4542868752539617) internal successors, (14316), 9892 states have internal predecessors, (14316), 1132 states have call successors, (1132), 269 states have call predecessors, (1132), 269 states have return successors, (1132), 1084 states have call predecessors, (1132), 1132 states have call successors, (1132) [2024-12-02 06:21:49,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11246 states to 11246 states and 16580 transitions. [2024-12-02 06:21:49,111 INFO L78 Accepts]: Start accepts. Automaton has 11246 states and 16580 transitions. Word has length 467 [2024-12-02 06:21:49,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:21:49,111 INFO L471 AbstractCegarLoop]: Abstraction has 11246 states and 16580 transitions. [2024-12-02 06:21:49,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.807692307692308) internal successors, (281), 26 states have internal predecessors, (281), 10 states have call successors, (158), 5 states have call predecessors, (158), 10 states have return successors, (158), 10 states have call predecessors, (158), 10 states have call successors, (158) [2024-12-02 06:21:49,111 INFO L276 IsEmpty]: Start isEmpty. Operand 11246 states and 16580 transitions. [2024-12-02 06:21:49,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2024-12-02 06:21:49,115 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:21:49,115 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:21:49,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 06:21:49,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:21:49,316 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:21:49,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:21:49,316 INFO L85 PathProgramCache]: Analyzing trace with hash 640176951, now seen corresponding path program 1 times [2024-12-02 06:21:49,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:21:49,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888708364] [2024-12-02 06:21:49,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:49,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:21:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 06:21:49,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1215022672] [2024-12-02 06:21:49,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:49,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:21:49,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:21:49,510 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:21:49,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 06:21:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:21:49,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 06:21:49,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:21:50,402 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-12-02 06:21:50,402 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:21:50,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:21:50,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888708364] [2024-12-02 06:21:50,403 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 06:21:50,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215022672] [2024-12-02 06:21:50,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215022672] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:21:50,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:21:50,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:21:50,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541222442] [2024-12-02 06:21:50,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:21:50,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:21:50,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:21:50,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:21:50,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:21:50,405 INFO L87 Difference]: Start difference. First operand 11246 states and 16580 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:21:53,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:21:53,072 INFO L93 Difference]: Finished difference Result 22868 states and 33351 transitions. [2024-12-02 06:21:53,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:21:53,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 467 [2024-12-02 06:21:53,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:21:53,096 INFO L225 Difference]: With dead ends: 22868 [2024-12-02 06:21:53,096 INFO L226 Difference]: Without dead ends: 13734 [2024-12-02 06:21:53,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:21:53,107 INFO L435 NwaCegarLoop]: 508 mSDtfsCounter, 371 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 1353 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:21:53,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 1353 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:21:53,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13734 states. [2024-12-02 06:21:55,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13734 to 12846. [2024-12-02 06:21:55,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12846 states, 11152 states have (on average 1.4343615494978479) internal successors, (15996), 11218 states have internal predecessors, (15996), 1356 states have call successors, (1356), 337 states have call predecessors, (1356), 337 states have return successors, (1356), 1290 states have call predecessors, (1356), 1356 states have call successors, (1356) [2024-12-02 06:21:55,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12846 states to 12846 states and 18708 transitions. [2024-12-02 06:21:55,382 INFO L78 Accepts]: Start accepts. Automaton has 12846 states and 18708 transitions. Word has length 467 [2024-12-02 06:21:55,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:21:55,382 INFO L471 AbstractCegarLoop]: Abstraction has 12846 states and 18708 transitions. [2024-12-02 06:21:55,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-12-02 06:21:55,382 INFO L276 IsEmpty]: Start isEmpty. Operand 12846 states and 18708 transitions. [2024-12-02 06:21:55,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2024-12-02 06:21:55,386 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:21:55,386 INFO L218 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:21:55,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 06:21:55,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:21:55,587 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:21:55,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:21:55,587 INFO L85 PathProgramCache]: Analyzing trace with hash 993265333, now seen corresponding path program 1 times [2024-12-02 06:21:55,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:21:55,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576857304] [2024-12-02 06:21:55,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:55,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:21:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 06:21:55,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261406677] [2024-12-02 06:21:55,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:55,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:21:55,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:21:55,713 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:21:55,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a74f20b2-dc7a-45e6-a764-431d1499f21a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 06:21:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:21:56,055 INFO L256 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-12-02 06:21:56,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:22:04,763 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 5409 proven. 381 refuted. 0 times theorem prover too weak. 3870 trivial. 0 not checked. [2024-12-02 06:22:04,763 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:22:09,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:22:09,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576857304] [2024-12-02 06:22:09,508 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 06:22:09,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261406677] [2024-12-02 06:22:09,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261406677] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:22:09,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:22:09,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2024-12-02 06:22:09,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598761629] [2024-12-02 06:22:09,508 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 06:22:09,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-12-02 06:22:09,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:22:09,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-12-02 06:22:09,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=1769, Unknown=2, NotChecked=0, Total=2070 [2024-12-02 06:22:09,510 INFO L87 Difference]: Start difference. First operand 12846 states and 18708 transitions. Second operand has 32 states, 32 states have (on average 4.59375) internal successors, (147), 30 states have internal predecessors, (147), 6 states have call successors, (70), 6 states have call predecessors, (70), 10 states have return successors, (70), 6 states have call predecessors, (70), 6 states have call successors, (70) [2024-12-02 06:22:19,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:22:23,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:22:27,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:22:31,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:22:58,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:24:34,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:25:13,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Real, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:25:24,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:25:28,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:25:43,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:25:47,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:25:51,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:26:04,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:26:08,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:26:12,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:26:18,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:26:19,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:26:21,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:26:49,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:27:13,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:27:14,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:27:18,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:27:23,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:27:27,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:27:31,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:27:48,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:27:52,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:27:56,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:28:09,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:28:13,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:28:17,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:28:25,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:28:29,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:28:34,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:28:38,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:28:42,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:28:46,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:28:50,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:29:21,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:29:42,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:29:46,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:29:51,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:29:55,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:30:02,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:30:06,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:30:09,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:30:13,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:30:17,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:30:22,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:30:23,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:30:28,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:30:33,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:30:37,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:30:41,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:30:42,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:30:46,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:30:50,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:30:54,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:30:59,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:31:03,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:31:06,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:31:10,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:31:14,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:31:18,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:31:22,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:31:26,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:31:30,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:31:34,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:31:38,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:31:41,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:31:46,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:31:51,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:31:55,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:31:58,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.92s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:31:59,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:32:04,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:32:07,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:32:10,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:32:14,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:32:18,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:32:22,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:32:26,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:32:31,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:32:35,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:32:39,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:32:43,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.88s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:32:45,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:32:49,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:32:53,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:32:57,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:33:01,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:33:03,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:33:08,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:33:12,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:33:16,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:33:20,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:33:25,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:33:29,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:33:33,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:33:37,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:33:41,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:33:47,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:33:51,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:33:55,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:33:59,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:34:04,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:34:08,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:34:12,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:34:17,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:34:21,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:34:25,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:34:29,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:34:34,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:34:38,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:34:42,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:34:46,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:34:50,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-02 06:34:55,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]