./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-12.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d5a4f-bbae-48da-bbb1-e8a0db521843/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d5a4f-bbae-48da-bbb1-e8a0db521843/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d5a4f-bbae-48da-bbb1-e8a0db521843/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d5a4f-bbae-48da-bbb1-e8a0db521843/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-12.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d5a4f-bbae-48da-bbb1-e8a0db521843/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d5a4f-bbae-48da-bbb1-e8a0db521843/bin/uautomizer-verify-LYvppIcaGC --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 0195a79ad7eda7ad8a0c6adcb8066ff123870f81fcea1f23c209e71678638ac8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:02:21,506 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:02:21,662 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d5a4f-bbae-48da-bbb1-e8a0db521843/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:02:21,674 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:02:21,674 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:02:21,728 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:02:21,729 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:02:21,730 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:02:21,730 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:02:21,731 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:02:21,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:02:21,731 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:02:21,732 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:02:21,732 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:02:21,732 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:02:21,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:02:21,733 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:02:21,733 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:02:21,733 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:02:21,733 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:02:21,734 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:02:21,734 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:02:21,734 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:02:21,734 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:02:21,734 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:02:21,735 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:02:21,735 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:02:21,735 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:02:21,735 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:02:21,735 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:02:21,735 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:02:21,736 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:02:21,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:02:21,736 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:02:21,736 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:02:21,736 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:02:21,737 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:02:21,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:02:21,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:02:21,737 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:02:21,737 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:02:21,738 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:02:21,738 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:02:21,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:02:21,738 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:02:21,738 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:02:21,738 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:02:21,739 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:02:21,739 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_811d5a4f-bbae-48da-bbb1-e8a0db521843/bin/uautomizer-verify-LYvppIcaGC 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 -> 0195a79ad7eda7ad8a0c6adcb8066ff123870f81fcea1f23c209e71678638ac8 [2024-11-24 01:02:22,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:02:22,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:02:22,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:02:22,139 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:02:22,139 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:02:22,142 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d5a4f-bbae-48da-bbb1-e8a0db521843/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-12.i [2024-11-24 01:02:25,700 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d5a4f-bbae-48da-bbb1-e8a0db521843/bin/uautomizer-verify-LYvppIcaGC/data/7c830b149/80bd2dca45f340ba97e84416fd47a049/FLAGab5d4b3e8 [2024-11-24 01:02:26,240 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:02:26,241 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d5a4f-bbae-48da-bbb1-e8a0db521843/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-12.i [2024-11-24 01:02:26,257 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d5a4f-bbae-48da-bbb1-e8a0db521843/bin/uautomizer-verify-LYvppIcaGC/data/7c830b149/80bd2dca45f340ba97e84416fd47a049/FLAGab5d4b3e8 [2024-11-24 01:02:26,285 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d5a4f-bbae-48da-bbb1-e8a0db521843/bin/uautomizer-verify-LYvppIcaGC/data/7c830b149/80bd2dca45f340ba97e84416fd47a049 [2024-11-24 01:02:26,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:02:26,290 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:02:26,292 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:02:26,292 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:02:26,299 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:02:26,300 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:02:26" (1/1) ... [2024-11-24 01:02:26,303 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e91977b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:02:26, skipping insertion in model container [2024-11-24 01:02:26,303 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:02:26" (1/1) ... [2024-11-24 01:02:26,363 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:02:26,581 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_811d5a4f-bbae-48da-bbb1-e8a0db521843/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-12.i[916,929] [2024-11-24 01:02:26,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:02:26,848 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:02:26,862 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_811d5a4f-bbae-48da-bbb1-e8a0db521843/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-12.i[916,929] [2024-11-24 01:02:26,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:02:26,992 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:02:26,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:02:26 WrapperNode [2024-11-24 01:02:26,993 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:02:26,997 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:02:26,997 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:02:26,997 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:02:27,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:02:26" (1/1) ... [2024-11-24 01:02:27,050 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:02:26" (1/1) ... [2024-11-24 01:02:27,163 INFO L138 Inliner]: procedures = 26, calls = 121, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 822 [2024-11-24 01:02:27,163 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:02:27,164 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:02:27,164 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:02:27,164 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:02:27,175 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:02:26" (1/1) ... [2024-11-24 01:02:27,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:02:26" (1/1) ... [2024-11-24 01:02:27,184 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:02:26" (1/1) ... [2024-11-24 01:02:27,214 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 01:02:27,215 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:02:26" (1/1) ... [2024-11-24 01:02:27,215 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:02:26" (1/1) ... [2024-11-24 01:02:27,238 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:02:26" (1/1) ... [2024-11-24 01:02:27,241 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:02:26" (1/1) ... [2024-11-24 01:02:27,249 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:02:26" (1/1) ... [2024-11-24 01:02:27,255 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:02:26" (1/1) ... [2024-11-24 01:02:27,260 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:02:26" (1/1) ... [2024-11-24 01:02:27,272 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:02:27,272 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:02:27,273 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:02:27,273 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:02:27,274 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:02:26" (1/1) ... [2024-11-24 01:02:27,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:02:27,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d5a4f-bbae-48da-bbb1-e8a0db521843/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:02:27,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d5a4f-bbae-48da-bbb1-e8a0db521843/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:02:27,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d5a4f-bbae-48da-bbb1-e8a0db521843/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:02:27,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:02:27,370 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:02:27,370 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:02:27,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:02:27,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:02:27,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:02:27,618 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:02:27,621 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:02:29,611 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-24 01:02:29,612 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:02:29,635 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:02:29,636 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:02:29,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:02:29 BoogieIcfgContainer [2024-11-24 01:02:29,637 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:02:29,640 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:02:29,640 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:02:29,648 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:02:29,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:02:26" (1/3) ... [2024-11-24 01:02:29,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8415ea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:02:29, skipping insertion in model container [2024-11-24 01:02:29,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:02:26" (2/3) ... [2024-11-24 01:02:29,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8415ea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:02:29, skipping insertion in model container [2024-11-24 01:02:29,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:02:29" (3/3) ... [2024-11-24 01:02:29,652 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-12.i [2024-11-24 01:02:29,674 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:02:29,680 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-12.i that has 2 procedures, 340 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:02:29,801 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:02:29,823 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;@72637972, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:02:29,823 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:02:29,833 INFO L276 IsEmpty]: Start isEmpty. Operand has 340 states, 229 states have (on average 1.5807860262008733) internal successors, (362), 230 states have internal predecessors, (362), 108 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 01:02:29,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2024-11-24 01:02:29,907 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:29,909 INFO L218 NwaCegarLoop]: trace histogram [108, 108, 108, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:29,910 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:29,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:29,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1797013545, now seen corresponding path program 1 times [2024-11-24 01:02:29,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:29,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121250102] [2024-11-24 01:02:29,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:29,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:31,299 INFO L134 CoverageAnalysis]: Checked inductivity of 23112 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 22898 trivial. 0 not checked. [2024-11-24 01:02:31,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:31,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121250102] [2024-11-24 01:02:31,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121250102] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:02:31,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258709455] [2024-11-24 01:02:31,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:31,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:02:31,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d5a4f-bbae-48da-bbb1-e8a0db521843/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:02:31,310 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d5a4f-bbae-48da-bbb1-e8a0db521843/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:02:31,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d5a4f-bbae-48da-bbb1-e8a0db521843/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:02:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:32,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 1559 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:02:32,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:02:32,253 INFO L134 CoverageAnalysis]: Checked inductivity of 23112 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 22898 trivial. 0 not checked. [2024-11-24 01:02:32,254 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:02:32,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258709455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:02:32,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:02:32,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:02:32,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525124324] [2024-11-24 01:02:32,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:02:32,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:02:32,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:32,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:02:32,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:02:32,298 INFO L87 Difference]: Start difference. First operand has 340 states, 229 states have (on average 1.5807860262008733) internal successors, (362), 230 states have internal predecessors, (362), 108 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) Second operand has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 2 states have call successors, (108), 2 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 2 states have call successors, (108) [2024-11-24 01:02:32,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:32,436 INFO L93 Difference]: Finished difference Result 673 states and 1258 transitions. [2024-11-24 01:02:32,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:02:32,439 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 2 states have call successors, (108), 2 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 2 states have call successors, (108) Word has length 690 [2024-11-24 01:02:32,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:32,453 INFO L225 Difference]: With dead ends: 673 [2024-11-24 01:02:32,453 INFO L226 Difference]: Without dead ends: 336 [2024-11-24 01:02:32,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 691 GetRequests, 691 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:02:32,464 INFO L435 NwaCegarLoop]: 570 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, 570 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 [2024-11-24 01:02:32,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:02:32,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-11-24 01:02:32,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2024-11-24 01:02:32,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 226 states have (on average 1.5663716814159292) internal successors, (354), 226 states have internal predecessors, (354), 108 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-24 01:02:32,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 570 transitions. [2024-11-24 01:02:32,597 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 570 transitions. Word has length 690 [2024-11-24 01:02:32,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:32,598 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 570 transitions. [2024-11-24 01:02:32,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 2 states have call successors, (108), 2 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 2 states have call successors, (108) [2024-11-24 01:02:32,599 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 570 transitions. [2024-11-24 01:02:32,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2024-11-24 01:02:32,659 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:32,660 INFO L218 NwaCegarLoop]: trace histogram [108, 108, 108, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:32,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d5a4f-bbae-48da-bbb1-e8a0db521843/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:02:32,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d5a4f-bbae-48da-bbb1-e8a0db521843/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:02:32,865 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:32,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:32,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1779401920, now seen corresponding path program 1 times [2024-11-24 01:02:32,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:32,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362287966] [2024-11-24 01:02:32,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:32,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:34,535 INFO L134 CoverageAnalysis]: Checked inductivity of 23112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23112 trivial. 0 not checked. [2024-11-24 01:02:34,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:34,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362287966] [2024-11-24 01:02:34,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362287966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:02:34,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:02:34,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:02:34,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153049492] [2024-11-24 01:02:34,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:02:34,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:02:34,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:34,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:02:34,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:02:34,543 INFO L87 Difference]: Start difference. First operand 336 states and 570 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:02:34,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:34,744 INFO L93 Difference]: Finished difference Result 1000 states and 1700 transitions. [2024-11-24 01:02:34,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:02:34,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) Word has length 691 [2024-11-24 01:02:34,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:34,765 INFO L225 Difference]: With dead ends: 1000 [2024-11-24 01:02:34,766 INFO L226 Difference]: Without dead ends: 667 [2024-11-24 01:02:34,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:02:34,769 INFO L435 NwaCegarLoop]: 558 mSDtfsCounter, 352 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:34,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 1107 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:02:34,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-24 01:02:35,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 665. [2024-11-24 01:02:35,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 446 states have (on average 1.5672645739910314) internal successors, (699), 446 states have internal predecessors, (699), 216 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2024-11-24 01:02:35,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 1131 transitions. [2024-11-24 01:02:35,046 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 1131 transitions. Word has length 691 [2024-11-24 01:02:35,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:35,050 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 1131 transitions. [2024-11-24 01:02:35,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:02:35,051 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 1131 transitions. [2024-11-24 01:02:35,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2024-11-24 01:02:35,082 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:35,083 INFO L218 NwaCegarLoop]: trace histogram [108, 108, 108, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:35,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:02:35,084 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:35,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:35,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1451556169, now seen corresponding path program 1 times [2024-11-24 01:02:35,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:35,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039931778] [2024-11-24 01:02:35,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:35,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:35,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:35,734 INFO L134 CoverageAnalysis]: Checked inductivity of 23112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23112 trivial. 0 not checked. [2024-11-24 01:02:35,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:35,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039931778] [2024-11-24 01:02:35,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039931778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:02:35,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:02:35,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:02:35,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034055857] [2024-11-24 01:02:35,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:02:35,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:02:35,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:35,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:02:35,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:02:35,743 INFO L87 Difference]: Start difference. First operand 665 states and 1131 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:02:35,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:35,914 INFO L93 Difference]: Finished difference Result 1711 states and 2925 transitions. [2024-11-24 01:02:35,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:02:35,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) Word has length 692 [2024-11-24 01:02:35,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:35,931 INFO L225 Difference]: With dead ends: 1711 [2024-11-24 01:02:35,932 INFO L226 Difference]: Without dead ends: 1049 [2024-11-24 01:02:35,935 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:02:35,936 INFO L435 NwaCegarLoop]: 755 mSDtfsCounter, 333 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:35,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 1309 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:02:35,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2024-11-24 01:02:36,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 1045. [2024-11-24 01:02:36,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 766 states have (on average 1.6214099216710183) internal successors, (1242), 768 states have internal predecessors, (1242), 274 states have call successors, (274), 4 states have call predecessors, (274), 4 states have return successors, (274), 272 states have call predecessors, (274), 274 states have call successors, (274) [2024-11-24 01:02:36,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1790 transitions. [2024-11-24 01:02:36,204 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1790 transitions. Word has length 692 [2024-11-24 01:02:36,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:36,206 INFO L471 AbstractCegarLoop]: Abstraction has 1045 states and 1790 transitions. [2024-11-24 01:02:36,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:02:36,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1790 transitions. [2024-11-24 01:02:36,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2024-11-24 01:02:36,228 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:36,228 INFO L218 NwaCegarLoop]: trace histogram [108, 108, 108, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:36,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:02:36,229 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:36,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:36,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1177099639, now seen corresponding path program 1 times [2024-11-24 01:02:36,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:36,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073235034] [2024-11-24 01:02:36,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:36,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:36,789 INFO L134 CoverageAnalysis]: Checked inductivity of 23112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23112 trivial. 0 not checked. [2024-11-24 01:02:36,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:36,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073235034] [2024-11-24 01:02:36,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073235034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:02:36,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:02:36,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:02:36,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455755654] [2024-11-24 01:02:36,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:02:36,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:02:36,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:36,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:02:36,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:02:36,796 INFO L87 Difference]: Start difference. First operand 1045 states and 1790 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:02:37,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:37,001 INFO L93 Difference]: Finished difference Result 2851 states and 4898 transitions. [2024-11-24 01:02:37,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:02:37,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) Word has length 692 [2024-11-24 01:02:37,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:37,025 INFO L225 Difference]: With dead ends: 2851 [2024-11-24 01:02:37,026 INFO L226 Difference]: Without dead ends: 1809 [2024-11-24 01:02:37,030 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:02:37,032 INFO L435 NwaCegarLoop]: 722 mSDtfsCounter, 329 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 1277 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:37,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 1277 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:02:37,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2024-11-24 01:02:37,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1805. [2024-11-24 01:02:37,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1805 states, 1390 states have (on average 1.6402877697841727) internal successors, (2280), 1396 states have internal predecessors, (2280), 406 states have call successors, (406), 8 states have call predecessors, (406), 8 states have return successors, (406), 400 states have call predecessors, (406), 406 states have call successors, (406) [2024-11-24 01:02:37,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 3092 transitions. [2024-11-24 01:02:37,290 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 3092 transitions. Word has length 692 [2024-11-24 01:02:37,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:37,293 INFO L471 AbstractCegarLoop]: Abstraction has 1805 states and 3092 transitions. [2024-11-24 01:02:37,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:02:37,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 3092 transitions. [2024-11-24 01:02:37,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2024-11-24 01:02:37,306 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:37,306 INFO L218 NwaCegarLoop]: trace histogram [108, 108, 108, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:37,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:02:37,307 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:37,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:37,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1183634743, now seen corresponding path program 1 times [2024-11-24 01:02:37,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:37,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170742997] [2024-11-24 01:02:37,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:37,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:37,970 INFO L134 CoverageAnalysis]: Checked inductivity of 23112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23112 trivial. 0 not checked. [2024-11-24 01:02:37,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:37,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170742997] [2024-11-24 01:02:37,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170742997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:02:37,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:02:37,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:02:37,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789956327] [2024-11-24 01:02:37,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:02:37,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:02:37,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:37,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:02:37,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:02:37,978 INFO L87 Difference]: Start difference. First operand 1805 states and 3092 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:02:38,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:38,362 INFO L93 Difference]: Finished difference Result 5409 states and 9270 transitions. [2024-11-24 01:02:38,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:02:38,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) Word has length 692 [2024-11-24 01:02:38,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:38,400 INFO L225 Difference]: With dead ends: 5409 [2024-11-24 01:02:38,400 INFO L226 Difference]: Without dead ends: 3607 [2024-11-24 01:02:38,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:02:38,410 INFO L435 NwaCegarLoop]: 1081 mSDtfsCounter, 560 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:38,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 1641 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:02:38,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3607 states. [2024-11-24 01:02:38,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3607 to 3605. [2024-11-24 01:02:38,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3605 states, 2776 states have (on average 1.6325648414985592) internal successors, (4532), 2788 states have internal predecessors, (4532), 812 states have call successors, (812), 16 states have call predecessors, (812), 16 states have return successors, (812), 800 states have call predecessors, (812), 812 states have call successors, (812) [2024-11-24 01:02:38,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3605 states to 3605 states and 6156 transitions. [2024-11-24 01:02:38,969 INFO L78 Accepts]: Start accepts. Automaton has 3605 states and 6156 transitions. Word has length 692 [2024-11-24 01:02:38,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:38,972 INFO L471 AbstractCegarLoop]: Abstraction has 3605 states and 6156 transitions. [2024-11-24 01:02:38,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:02:38,972 INFO L276 IsEmpty]: Start isEmpty. Operand 3605 states and 6156 transitions. [2024-11-24 01:02:38,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2024-11-24 01:02:38,983 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:38,984 INFO L218 NwaCegarLoop]: trace histogram [108, 108, 108, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:38,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:02:38,985 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:38,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:38,987 INFO L85 PathProgramCache]: Analyzing trace with hash 365986293, now seen corresponding path program 1 times [2024-11-24 01:02:38,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:38,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688541856] [2024-11-24 01:02:38,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:38,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:40,033 INFO L134 CoverageAnalysis]: Checked inductivity of 23112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23112 trivial. 0 not checked. [2024-11-24 01:02:40,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:40,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688541856] [2024-11-24 01:02:40,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688541856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:02:40,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:02:40,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:02:40,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57998342] [2024-11-24 01:02:40,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:02:40,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:02:40,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:40,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:02:40,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:02:40,037 INFO L87 Difference]: Start difference. First operand 3605 states and 6156 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:02:40,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:40,784 INFO L93 Difference]: Finished difference Result 9209 states and 15622 transitions. [2024-11-24 01:02:40,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:02:40,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) Word has length 692 [2024-11-24 01:02:40,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:40,872 INFO L225 Difference]: With dead ends: 9209 [2024-11-24 01:02:40,872 INFO L226 Difference]: Without dead ends: 5607 [2024-11-24 01:02:40,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:02:40,885 INFO L435 NwaCegarLoop]: 592 mSDtfsCounter, 190 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:40,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 1130 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:02:40,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5607 states. [2024-11-24 01:02:41,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5607 to 5597. [2024-11-24 01:02:41,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5597 states, 4240 states have (on average 1.6028301886792453) internal successors, (6796), 4268 states have internal predecessors, (6796), 1324 states have call successors, (1324), 32 states have call predecessors, (1324), 32 states have return successors, (1324), 1296 states have call predecessors, (1324), 1324 states have call successors, (1324) [2024-11-24 01:02:41,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5597 states to 5597 states and 9444 transitions. [2024-11-24 01:02:41,794 INFO L78 Accepts]: Start accepts. Automaton has 5597 states and 9444 transitions. Word has length 692 [2024-11-24 01:02:41,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:41,796 INFO L471 AbstractCegarLoop]: Abstraction has 5597 states and 9444 transitions. [2024-11-24 01:02:41,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:02:41,799 INFO L276 IsEmpty]: Start isEmpty. Operand 5597 states and 9444 transitions. [2024-11-24 01:02:41,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2024-11-24 01:02:41,819 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:41,820 INFO L218 NwaCegarLoop]: trace histogram [108, 108, 108, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:41,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:02:41,820 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:41,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:41,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1867943783, now seen corresponding path program 1 times [2024-11-24 01:02:41,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:41,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83359723] [2024-11-24 01:02:41,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:41,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:43,488 INFO L134 CoverageAnalysis]: Checked inductivity of 23112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23112 trivial. 0 not checked. [2024-11-24 01:02:43,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:43,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83359723] [2024-11-24 01:02:43,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83359723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:02:43,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:02:43,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:02:43,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312439164] [2024-11-24 01:02:43,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:02:43,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:02:43,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:43,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:02:43,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:02:43,492 INFO L87 Difference]: Start difference. First operand 5597 states and 9444 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:02:45,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:45,428 INFO L93 Difference]: Finished difference Result 16075 states and 26867 transitions. [2024-11-24 01:02:45,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:02:45,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) Word has length 692 [2024-11-24 01:02:45,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:45,510 INFO L225 Difference]: With dead ends: 16075 [2024-11-24 01:02:45,510 INFO L226 Difference]: Without dead ends: 10481 [2024-11-24 01:02:45,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:02:45,534 INFO L435 NwaCegarLoop]: 684 mSDtfsCounter, 375 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 2253 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:45,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 2253 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:02:45,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10481 states. [2024-11-24 01:02:47,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10481 to 9373. [2024-11-24 01:02:47,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9373 states, 7184 states have (on average 1.5879732739420935) internal successors, (11408), 7244 states have internal predecessors, (11408), 2124 states have call successors, (2124), 64 states have call predecessors, (2124), 64 states have return successors, (2124), 2064 states have call predecessors, (2124), 2124 states have call successors, (2124) [2024-11-24 01:02:47,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9373 states to 9373 states and 15656 transitions. [2024-11-24 01:02:47,169 INFO L78 Accepts]: Start accepts. Automaton has 9373 states and 15656 transitions. Word has length 692 [2024-11-24 01:02:47,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:47,174 INFO L471 AbstractCegarLoop]: Abstraction has 9373 states and 15656 transitions. [2024-11-24 01:02:47,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:02:47,176 INFO L276 IsEmpty]: Start isEmpty. Operand 9373 states and 15656 transitions. [2024-11-24 01:02:47,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2024-11-24 01:02:47,205 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:47,206 INFO L218 NwaCegarLoop]: trace histogram [108, 108, 108, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:47,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:02:47,206 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:47,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:47,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1269577255, now seen corresponding path program 1 times [2024-11-24 01:02:47,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:47,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625730932] [2024-11-24 01:02:47,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:47,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:47,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:48,524 INFO L134 CoverageAnalysis]: Checked inductivity of 23112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23112 trivial. 0 not checked. [2024-11-24 01:02:48,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:48,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625730932] [2024-11-24 01:02:48,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625730932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:02:48,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:02:48,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:02:48,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946820755] [2024-11-24 01:02:48,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:02:48,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:02:48,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:48,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:02:48,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:02:48,527 INFO L87 Difference]: Start difference. First operand 9373 states and 15656 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:02:50,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:50,772 INFO L93 Difference]: Finished difference Result 27757 states and 46306 transitions. [2024-11-24 01:02:50,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:02:50,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) Word has length 692 [2024-11-24 01:02:50,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:50,881 INFO L225 Difference]: With dead ends: 27757 [2024-11-24 01:02:50,882 INFO L226 Difference]: Without dead ends: 18387 [2024-11-24 01:02:50,914 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:02:50,915 INFO L435 NwaCegarLoop]: 865 mSDtfsCounter, 779 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 1411 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:50,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 1411 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:02:50,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18387 states. [2024-11-24 01:02:52,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18387 to 9997. [2024-11-24 01:02:52,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9997 states, 7808 states have (on average 1.603483606557377) internal successors, (12520), 7868 states have internal predecessors, (12520), 2124 states have call successors, (2124), 64 states have call predecessors, (2124), 64 states have return successors, (2124), 2064 states have call predecessors, (2124), 2124 states have call successors, (2124) [2024-11-24 01:02:52,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9997 states to 9997 states and 16768 transitions. [2024-11-24 01:02:52,439 INFO L78 Accepts]: Start accepts. Automaton has 9997 states and 16768 transitions. Word has length 692 [2024-11-24 01:02:52,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:52,441 INFO L471 AbstractCegarLoop]: Abstraction has 9997 states and 16768 transitions. [2024-11-24 01:02:52,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:02:52,441 INFO L276 IsEmpty]: Start isEmpty. Operand 9997 states and 16768 transitions. [2024-11-24 01:02:52,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2024-11-24 01:02:52,459 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:52,460 INFO L218 NwaCegarLoop]: trace histogram [108, 108, 108, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:52,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:02:52,463 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:52,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:52,464 INFO L85 PathProgramCache]: Analyzing trace with hash 719145257, now seen corresponding path program 1 times [2024-11-24 01:02:52,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:52,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875565275] [2024-11-24 01:02:52,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:52,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:02:53,658 INFO L134 CoverageAnalysis]: Checked inductivity of 23112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23112 trivial. 0 not checked. [2024-11-24 01:02:53,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:02:53,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875565275] [2024-11-24 01:02:53,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875565275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:02:53,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:02:53,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:02:53,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880322058] [2024-11-24 01:02:53,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:02:53,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:02:53,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:02:53,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:02:53,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:02:53,666 INFO L87 Difference]: Start difference. First operand 9997 states and 16768 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:02:56,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:02:56,007 INFO L93 Difference]: Finished difference Result 29337 states and 49150 transitions. [2024-11-24 01:02:56,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:02:56,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) Word has length 692 [2024-11-24 01:02:56,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:02:56,102 INFO L225 Difference]: With dead ends: 29337 [2024-11-24 01:02:56,102 INFO L226 Difference]: Without dead ends: 19343 [2024-11-24 01:02:56,139 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:02:56,140 INFO L435 NwaCegarLoop]: 739 mSDtfsCounter, 375 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:02:56,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 1276 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:02:56,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19343 states. [2024-11-24 01:02:58,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19343 to 19337. [2024-11-24 01:02:58,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19337 states, 15096 states have (on average 1.5980392156862746) internal successors, (24124), 15220 states have internal predecessors, (24124), 4112 states have call successors, (4112), 128 states have call predecessors, (4112), 128 states have return successors, (4112), 3988 states have call predecessors, (4112), 4112 states have call successors, (4112) [2024-11-24 01:02:58,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19337 states to 19337 states and 32348 transitions. [2024-11-24 01:02:58,441 INFO L78 Accepts]: Start accepts. Automaton has 19337 states and 32348 transitions. Word has length 692 [2024-11-24 01:02:58,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:02:58,442 INFO L471 AbstractCegarLoop]: Abstraction has 19337 states and 32348 transitions. [2024-11-24 01:02:58,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:02:58,443 INFO L276 IsEmpty]: Start isEmpty. Operand 19337 states and 32348 transitions. [2024-11-24 01:02:58,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2024-11-24 01:02:58,474 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:02:58,475 INFO L218 NwaCegarLoop]: trace histogram [108, 108, 108, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:02:58,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:02:58,475 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:02:58,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:02:58,476 INFO L85 PathProgramCache]: Analyzing trace with hash -178248021, now seen corresponding path program 1 times [2024-11-24 01:02:58,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:02:58,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490829603] [2024-11-24 01:02:58,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:02:58,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:02:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:00,077 INFO L134 CoverageAnalysis]: Checked inductivity of 23112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23112 trivial. 0 not checked. [2024-11-24 01:03:00,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:03:00,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490829603] [2024-11-24 01:03:00,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490829603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:03:00,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:03:00,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:03:00,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337898390] [2024-11-24 01:03:00,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:03:00,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:03:00,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:03:00,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:03:00,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:03:00,081 INFO L87 Difference]: Start difference. First operand 19337 states and 32348 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:03:02,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:03:02,618 INFO L93 Difference]: Finished difference Result 38709 states and 64762 transitions. [2024-11-24 01:03:02,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:03:02,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) Word has length 692 [2024-11-24 01:03:02,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:03:02,743 INFO L225 Difference]: With dead ends: 38709 [2024-11-24 01:03:02,743 INFO L226 Difference]: Without dead ends: 19375 [2024-11-24 01:03:02,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:03:02,797 INFO L435 NwaCegarLoop]: 740 mSDtfsCounter, 396 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:03:02,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 1853 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:03:02,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19375 states. [2024-11-24 01:03:05,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19375 to 19369. [2024-11-24 01:03:05,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19369 states, 15128 states have (on average 1.596774193548387) internal successors, (24156), 15252 states have internal predecessors, (24156), 4112 states have call successors, (4112), 128 states have call predecessors, (4112), 128 states have return successors, (4112), 3988 states have call predecessors, (4112), 4112 states have call successors, (4112) [2024-11-24 01:03:05,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19369 states to 19369 states and 32380 transitions. [2024-11-24 01:03:05,675 INFO L78 Accepts]: Start accepts. Automaton has 19369 states and 32380 transitions. Word has length 692 [2024-11-24 01:03:05,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:03:05,677 INFO L471 AbstractCegarLoop]: Abstraction has 19369 states and 32380 transitions. [2024-11-24 01:03:05,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:03:05,677 INFO L276 IsEmpty]: Start isEmpty. Operand 19369 states and 32380 transitions. [2024-11-24 01:03:05,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2024-11-24 01:03:05,703 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:03:05,704 INFO L218 NwaCegarLoop]: trace histogram [108, 108, 108, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:03:05,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:03:05,704 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:03:05,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:03:05,705 INFO L85 PathProgramCache]: Analyzing trace with hash -595644627, now seen corresponding path program 1 times [2024-11-24 01:03:05,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:03:05,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987581441] [2024-11-24 01:03:05,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:05,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:03:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:08,501 INFO L134 CoverageAnalysis]: Checked inductivity of 23112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23112 trivial. 0 not checked. [2024-11-24 01:03:08,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:03:08,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987581441] [2024-11-24 01:03:08,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987581441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:03:08,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:03:08,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:03:08,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592955704] [2024-11-24 01:03:08,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:03:08,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:03:08,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:03:08,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:03:08,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:03:08,505 INFO L87 Difference]: Start difference. First operand 19369 states and 32380 transitions. Second operand has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:03:15,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:03:15,443 INFO L93 Difference]: Finished difference Result 56072 states and 94101 transitions. [2024-11-24 01:03:15,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:03:15,444 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) Word has length 692 [2024-11-24 01:03:15,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:03:15,616 INFO L225 Difference]: With dead ends: 56072 [2024-11-24 01:03:15,616 INFO L226 Difference]: Without dead ends: 36706 [2024-11-24 01:03:15,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:03:15,666 INFO L435 NwaCegarLoop]: 1106 mSDtfsCounter, 1675 mSDsluCounter, 2705 mSDsCounter, 0 mSdLazyCounter, 2296 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 3811 SdHoareTripleChecker+Invalid, 2507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 2296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:03:15,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 3811 Invalid, 2507 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [211 Valid, 2296 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-24 01:03:15,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36706 states. [2024-11-24 01:03:19,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36706 to 24089. [2024-11-24 01:03:19,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24089 states, 18834 states have (on average 1.5939258787299564) internal successors, (30020), 18990 states have internal predecessors, (30020), 5094 states have call successors, (5094), 160 states have call predecessors, (5094), 160 states have return successors, (5094), 4938 states have call predecessors, (5094), 5094 states have call successors, (5094) [2024-11-24 01:03:19,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24089 states to 24089 states and 40208 transitions. [2024-11-24 01:03:19,996 INFO L78 Accepts]: Start accepts. Automaton has 24089 states and 40208 transitions. Word has length 692 [2024-11-24 01:03:19,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:03:19,998 INFO L471 AbstractCegarLoop]: Abstraction has 24089 states and 40208 transitions. [2024-11-24 01:03:19,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:03:19,998 INFO L276 IsEmpty]: Start isEmpty. Operand 24089 states and 40208 transitions. [2024-11-24 01:03:20,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2024-11-24 01:03:20,039 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:03:20,039 INFO L218 NwaCegarLoop]: trace histogram [108, 108, 108, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:03:20,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:03:20,040 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:03:20,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:03:20,041 INFO L85 PathProgramCache]: Analyzing trace with hash 839070102, now seen corresponding path program 1 times [2024-11-24 01:03:20,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:03:20,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291038434] [2024-11-24 01:03:20,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:20,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:03:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:20,936 INFO L134 CoverageAnalysis]: Checked inductivity of 23112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23112 trivial. 0 not checked. [2024-11-24 01:03:20,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:03:20,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291038434] [2024-11-24 01:03:20,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291038434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:03:20,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:03:20,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:03:20,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695734374] [2024-11-24 01:03:20,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:03:20,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:03:20,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:03:20,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:03:20,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:03:20,942 INFO L87 Difference]: Start difference. First operand 24089 states and 40208 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:03:24,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:03:24,007 INFO L93 Difference]: Finished difference Result 58209 states and 97258 transitions. [2024-11-24 01:03:24,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:03:24,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) Word has length 693 [2024-11-24 01:03:24,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:03:24,184 INFO L225 Difference]: With dead ends: 58209 [2024-11-24 01:03:24,184 INFO L226 Difference]: Without dead ends: 34123 [2024-11-24 01:03:24,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:03:24,242 INFO L435 NwaCegarLoop]: 966 mSDtfsCounter, 555 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 1855 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:03:24,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 1855 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:03:24,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34123 states. [2024-11-24 01:03:26,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34123 to 26265. [2024-11-24 01:03:26,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26265 states, 21010 states have (on average 1.6156116135173726) internal successors, (33944), 21166 states have internal predecessors, (33944), 5094 states have call successors, (5094), 160 states have call predecessors, (5094), 160 states have return successors, (5094), 4938 states have call predecessors, (5094), 5094 states have call successors, (5094) [2024-11-24 01:03:26,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26265 states to 26265 states and 44132 transitions. [2024-11-24 01:03:26,891 INFO L78 Accepts]: Start accepts. Automaton has 26265 states and 44132 transitions. Word has length 693 [2024-11-24 01:03:26,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:03:26,893 INFO L471 AbstractCegarLoop]: Abstraction has 26265 states and 44132 transitions. [2024-11-24 01:03:26,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:03:26,893 INFO L276 IsEmpty]: Start isEmpty. Operand 26265 states and 44132 transitions. [2024-11-24 01:03:26,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2024-11-24 01:03:26,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:03:26,921 INFO L218 NwaCegarLoop]: trace histogram [108, 108, 108, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:03:26,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:03:26,921 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:03:26,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:03:26,922 INFO L85 PathProgramCache]: Analyzing trace with hash -475719782, now seen corresponding path program 1 times [2024-11-24 01:03:26,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:03:26,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452061495] [2024-11-24 01:03:26,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:26,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:03:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:27,573 INFO L134 CoverageAnalysis]: Checked inductivity of 23112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23112 trivial. 0 not checked. [2024-11-24 01:03:27,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:03:27,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452061495] [2024-11-24 01:03:27,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452061495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:03:27,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:03:27,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:03:27,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489187609] [2024-11-24 01:03:27,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:03:27,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:03:27,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:03:27,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:03:27,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:03:27,577 INFO L87 Difference]: Start difference. First operand 26265 states and 44132 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:03:32,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:03:32,639 INFO L93 Difference]: Finished difference Result 76613 states and 128466 transitions. [2024-11-24 01:03:32,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:03:32,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) Word has length 693 [2024-11-24 01:03:32,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:03:32,860 INFO L225 Difference]: With dead ends: 76613 [2024-11-24 01:03:32,861 INFO L226 Difference]: Without dead ends: 50351 [2024-11-24 01:03:32,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:03:32,935 INFO L435 NwaCegarLoop]: 569 mSDtfsCounter, 380 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:03:32,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 1133 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:03:32,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50351 states. [2024-11-24 01:03:36,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50351 to 50349. [2024-11-24 01:03:36,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50349 states, 39840 states have (on average 1.6046184738955824) internal successors, (63928), 40152 states have internal predecessors, (63928), 10188 states have call successors, (10188), 320 states have call predecessors, (10188), 320 states have return successors, (10188), 9876 states have call predecessors, (10188), 10188 states have call successors, (10188) [2024-11-24 01:03:37,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50349 states to 50349 states and 84304 transitions. [2024-11-24 01:03:37,211 INFO L78 Accepts]: Start accepts. Automaton has 50349 states and 84304 transitions. Word has length 693 [2024-11-24 01:03:37,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:03:37,212 INFO L471 AbstractCegarLoop]: Abstraction has 50349 states and 84304 transitions. [2024-11-24 01:03:37,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108) [2024-11-24 01:03:37,213 INFO L276 IsEmpty]: Start isEmpty. Operand 50349 states and 84304 transitions. [2024-11-24 01:03:37,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2024-11-24 01:03:37,253 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:03:37,253 INFO L218 NwaCegarLoop]: trace histogram [108, 108, 108, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:03:37,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:03:37,254 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:03:37,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:03:37,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1071972456, now seen corresponding path program 1 times [2024-11-24 01:03:37,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:03:37,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405729147] [2024-11-24 01:03:37,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:03:37,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:03:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:03:38,799 INFO L134 CoverageAnalysis]: Checked inductivity of 23112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23112 trivial. 0 not checked. [2024-11-24 01:03:38,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:03:38,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405729147] [2024-11-24 01:03:38,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405729147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:03:38,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:03:38,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:03:38,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229956275] [2024-11-24 01:03:38,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:03:38,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:03:38,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:03:38,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:03:38,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:03:38,805 INFO L87 Difference]: Start difference. First operand 50349 states and 84304 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 1 states have call predecessors, (108), 1 states have call successors, (108)