./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-24.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_30806bd8-fbb1-468f-9153-2a9893533adc/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30806bd8-fbb1-468f-9153-2a9893533adc/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_30806bd8-fbb1-468f-9153-2a9893533adc/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30806bd8-fbb1-468f-9153-2a9893533adc/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-24.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30806bd8-fbb1-468f-9153-2a9893533adc/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_30806bd8-fbb1-468f-9153-2a9893533adc/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 91568889e64309585cc4780728e0f3ac2bb8be964788cb7e1aee4dd059fc722f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 02:01:31,439 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 02:01:31,524 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30806bd8-fbb1-468f-9153-2a9893533adc/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 02:01:31,529 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 02:01:31,529 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 02:01:31,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 02:01:31,576 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 02:01:31,577 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 02:01:31,577 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 02:01:31,577 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 02:01:31,578 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 02:01:31,578 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 02:01:31,578 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 02:01:31,578 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 02:01:31,579 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 02:01:31,579 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 02:01:31,579 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 02:01:31,579 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 02:01:31,579 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 02:01:31,580 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 02:01:31,580 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 02:01:31,580 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 02:01:31,580 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 02:01:31,580 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 02:01:31,580 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 02:01:31,580 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 02:01:31,581 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 02:01:31,581 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 02:01:31,581 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 02:01:31,581 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:01:31,581 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:01:31,582 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:01:31,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:01:31,582 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 02:01:31,582 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:01:31,582 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:01:31,582 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:01:31,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:01:31,583 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 02:01:31,583 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 02:01:31,583 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 02:01:31,584 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 02:01:31,584 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 02:01:31,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 02:01:31,584 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 02:01:31,584 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 02:01:31,584 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 02:01:31,584 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 02:01:31,585 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_30806bd8-fbb1-468f-9153-2a9893533adc/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 -> 91568889e64309585cc4780728e0f3ac2bb8be964788cb7e1aee4dd059fc722f [2024-11-24 02:01:31,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 02:01:31,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 02:01:32,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 02:01:32,004 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 02:01:32,004 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 02:01:32,006 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30806bd8-fbb1-468f-9153-2a9893533adc/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-24.i [2024-11-24 02:01:35,089 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30806bd8-fbb1-468f-9153-2a9893533adc/bin/uautomizer-verify-LYvppIcaGC/data/5f71e0016/6a891a39c8054451996d0261f321e6c6/FLAG183f16d9f [2024-11-24 02:01:35,579 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 02:01:35,582 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30806bd8-fbb1-468f-9153-2a9893533adc/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-24.i [2024-11-24 02:01:35,607 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30806bd8-fbb1-468f-9153-2a9893533adc/bin/uautomizer-verify-LYvppIcaGC/data/5f71e0016/6a891a39c8054451996d0261f321e6c6/FLAG183f16d9f [2024-11-24 02:01:35,637 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30806bd8-fbb1-468f-9153-2a9893533adc/bin/uautomizer-verify-LYvppIcaGC/data/5f71e0016/6a891a39c8054451996d0261f321e6c6 [2024-11-24 02:01:35,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 02:01:35,643 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 02:01:35,646 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 02:01:35,646 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 02:01:35,657 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 02:01:35,658 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:01:35" (1/1) ... [2024-11-24 02:01:35,659 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@220e5ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:35, skipping insertion in model container [2024-11-24 02:01:35,659 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:01:35" (1/1) ... [2024-11-24 02:01:35,720 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 02:01:35,952 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_30806bd8-fbb1-468f-9153-2a9893533adc/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-24.i[916,929] [2024-11-24 02:01:36,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:01:36,228 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 02:01:36,242 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_30806bd8-fbb1-468f-9153-2a9893533adc/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-24.i[916,929] [2024-11-24 02:01:36,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:01:36,488 INFO L204 MainTranslator]: Completed translation [2024-11-24 02:01:36,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:36 WrapperNode [2024-11-24 02:01:36,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 02:01:36,490 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 02:01:36,490 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 02:01:36,491 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 02:01:36,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:36" (1/1) ... [2024-11-24 02:01:36,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:36" (1/1) ... [2024-11-24 02:01:36,647 INFO L138 Inliner]: procedures = 26, calls = 120, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 908 [2024-11-24 02:01:36,647 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 02:01:36,648 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 02:01:36,648 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 02:01:36,648 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 02:01:36,659 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:36" (1/1) ... [2024-11-24 02:01:36,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:36" (1/1) ... [2024-11-24 02:01:36,684 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:36" (1/1) ... [2024-11-24 02:01:36,728 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 02:01:36,732 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:36" (1/1) ... [2024-11-24 02:01:36,732 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:36" (1/1) ... [2024-11-24 02:01:36,776 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:36" (1/1) ... [2024-11-24 02:01:36,782 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:36" (1/1) ... [2024-11-24 02:01:36,794 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:36" (1/1) ... [2024-11-24 02:01:36,801 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:36" (1/1) ... [2024-11-24 02:01:36,807 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:36" (1/1) ... [2024-11-24 02:01:36,819 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 02:01:36,820 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 02:01:36,820 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 02:01:36,821 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 02:01:36,822 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:36" (1/1) ... [2024-11-24 02:01:36,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:01:36,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30806bd8-fbb1-468f-9153-2a9893533adc/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:01:36,869 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30806bd8-fbb1-468f-9153-2a9893533adc/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 02:01:36,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30806bd8-fbb1-468f-9153-2a9893533adc/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 02:01:36,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 02:01:36,906 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 02:01:36,906 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 02:01:36,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 02:01:36,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 02:01:36,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 02:01:37,142 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 02:01:37,145 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:01:39,264 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-24 02:01:39,265 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:01:39,294 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:01:39,298 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 02:01:39,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:01:39 BoogieIcfgContainer [2024-11-24 02:01:39,299 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:01:39,301 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 02:01:39,304 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 02:01:39,309 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 02:01:39,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:01:35" (1/3) ... [2024-11-24 02:01:39,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338855ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:01:39, skipping insertion in model container [2024-11-24 02:01:39,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:01:36" (2/3) ... [2024-11-24 02:01:39,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338855ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:01:39, skipping insertion in model container [2024-11-24 02:01:39,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:01:39" (3/3) ... [2024-11-24 02:01:39,312 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-24.i [2024-11-24 02:01:39,334 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 02:01:39,337 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-24.i that has 2 procedures, 376 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 02:01:39,434 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:01:39,450 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;@610ad552, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:01:39,450 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 02:01:39,455 INFO L276 IsEmpty]: Start isEmpty. Operand has 376 states, 266 states have (on average 1.5902255639097744) internal successors, (423), 267 states have internal predecessors, (423), 107 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-24 02:01:39,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2024-11-24 02:01:39,515 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:39,517 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:01:39,517 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:39,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:39,525 INFO L85 PathProgramCache]: Analyzing trace with hash -484971260, now seen corresponding path program 1 times [2024-11-24 02:01:39,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:39,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518296091] [2024-11-24 02:01:39,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:39,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:40,632 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 212 refuted. 0 times theorem prover too weak. 22472 trivial. 0 not checked. [2024-11-24 02:01:40,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:40,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518296091] [2024-11-24 02:01:40,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518296091] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:01:40,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886379160] [2024-11-24 02:01:40,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:40,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:01:40,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30806bd8-fbb1-468f-9153-2a9893533adc/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:01:40,640 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30806bd8-fbb1-468f-9153-2a9893533adc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:01:40,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30806bd8-fbb1-468f-9153-2a9893533adc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 02:01:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:41,224 INFO L256 TraceCheckSpWp]: Trace formula consists of 1566 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 02:01:41,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:01:41,423 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 22472 trivial. 0 not checked. [2024-11-24 02:01:41,424 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:01:41,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886379160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:41,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 02:01:41,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 02:01:41,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184632276] [2024-11-24 02:01:41,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:41,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 02:01:41,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:41,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 02:01:41,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 02:01:41,474 INFO L87 Difference]: Start difference. First operand has 376 states, 266 states have (on average 1.5902255639097744) internal successors, (423), 267 states have internal predecessors, (423), 107 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) Second operand has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (107), 2 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 2 states have call successors, (107) [2024-11-24 02:01:41,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:41,612 INFO L93 Difference]: Finished difference Result 745 states and 1375 transitions. [2024-11-24 02:01:41,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 02:01:41,616 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (107), 2 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 2 states have call successors, (107) Word has length 690 [2024-11-24 02:01:41,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:41,634 INFO L225 Difference]: With dead ends: 745 [2024-11-24 02:01:41,635 INFO L226 Difference]: Without dead ends: 372 [2024-11-24 02:01:41,642 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 02:01:41,646 INFO L435 NwaCegarLoop]: 629 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, 629 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 02:01:41,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:01:41,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-24 02:01:41,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2024-11-24 02:01:41,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 263 states have (on average 1.5779467680608366) internal successors, (415), 263 states have internal predecessors, (415), 107 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-24 02:01:41,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 629 transitions. [2024-11-24 02:01:41,803 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 629 transitions. Word has length 690 [2024-11-24 02:01:41,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:41,804 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 629 transitions. [2024-11-24 02:01:41,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (107), 2 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 2 states have call successors, (107) [2024-11-24 02:01:41,805 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 629 transitions. [2024-11-24 02:01:41,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2024-11-24 02:01:41,837 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:41,838 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:01:41,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30806bd8-fbb1-468f-9153-2a9893533adc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 02:01:42,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30806bd8-fbb1-468f-9153-2a9893533adc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 02:01:42,040 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:42,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:42,042 INFO L85 PathProgramCache]: Analyzing trace with hash 200180738, now seen corresponding path program 1 times [2024-11-24 02:01:42,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:42,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680481849] [2024-11-24 02:01:42,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:42,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:43,251 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-24 02:01:43,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:43,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680481849] [2024-11-24 02:01:43,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680481849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:43,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:43,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:01:43,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693242418] [2024-11-24 02:01:43,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:43,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:01:43,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:43,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:01:43,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:43,263 INFO L87 Difference]: Start difference. First operand 372 states and 629 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:01:43,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:43,360 INFO L93 Difference]: Finished difference Result 741 states and 1255 transitions. [2024-11-24 02:01:43,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:01:43,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 690 [2024-11-24 02:01:43,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:43,373 INFO L225 Difference]: With dead ends: 741 [2024-11-24 02:01:43,373 INFO L226 Difference]: Without dead ends: 372 [2024-11-24 02:01:43,375 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 02:01:43,376 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 0 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:43,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1248 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:01:43,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-24 02:01:43,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2024-11-24 02:01:43,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 263 states have (on average 1.5741444866920151) internal successors, (414), 263 states have internal predecessors, (414), 107 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-24 02:01:43,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 628 transitions. [2024-11-24 02:01:43,458 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 628 transitions. Word has length 690 [2024-11-24 02:01:43,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:43,464 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 628 transitions. [2024-11-24 02:01:43,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:01:43,465 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 628 transitions. [2024-11-24 02:01:43,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2024-11-24 02:01:43,520 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:43,521 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:01:43,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 02:01:43,521 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:43,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:43,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1953369123, now seen corresponding path program 1 times [2024-11-24 02:01:43,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:43,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007599788] [2024-11-24 02:01:43,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:43,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:44,217 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-24 02:01:44,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:44,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007599788] [2024-11-24 02:01:44,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007599788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:44,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:44,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:01:44,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376684737] [2024-11-24 02:01:44,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:44,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:01:44,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:44,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:01:44,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:44,229 INFO L87 Difference]: Start difference. First operand 372 states and 628 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:01:44,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:44,400 INFO L93 Difference]: Finished difference Result 959 states and 1627 transitions. [2024-11-24 02:01:44,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:01:44,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 692 [2024-11-24 02:01:44,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:44,410 INFO L225 Difference]: With dead ends: 959 [2024-11-24 02:01:44,412 INFO L226 Difference]: Without dead ends: 590 [2024-11-24 02:01:44,414 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 02:01:44,416 INFO L435 NwaCegarLoop]: 676 mSDtfsCounter, 365 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1272 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:44,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1272 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:01:44,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-11-24 02:01:44,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 587. [2024-11-24 02:01:44,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 453 states have (on average 1.609271523178808) internal successors, (729), 454 states have internal predecessors, (729), 131 states have call successors, (131), 2 states have call predecessors, (131), 2 states have return successors, (131), 130 states have call predecessors, (131), 131 states have call successors, (131) [2024-11-24 02:01:44,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 991 transitions. [2024-11-24 02:01:44,521 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 991 transitions. Word has length 692 [2024-11-24 02:01:44,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:44,523 INFO L471 AbstractCegarLoop]: Abstraction has 587 states and 991 transitions. [2024-11-24 02:01:44,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:01:44,524 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 991 transitions. [2024-11-24 02:01:44,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2024-11-24 02:01:44,531 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:44,532 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:01:44,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 02:01:44,532 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:44,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:44,534 INFO L85 PathProgramCache]: Analyzing trace with hash 100063641, now seen corresponding path program 1 times [2024-11-24 02:01:44,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:44,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380713134] [2024-11-24 02:01:44,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:44,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:45,171 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-24 02:01:45,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:45,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380713134] [2024-11-24 02:01:45,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380713134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:45,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:45,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:01:45,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316228376] [2024-11-24 02:01:45,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:45,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:01:45,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:45,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:01:45,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:45,177 INFO L87 Difference]: Start difference. First operand 587 states and 991 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:01:45,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:45,305 INFO L93 Difference]: Finished difference Result 1569 states and 2652 transitions. [2024-11-24 02:01:45,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:01:45,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 692 [2024-11-24 02:01:45,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:45,317 INFO L225 Difference]: With dead ends: 1569 [2024-11-24 02:01:45,317 INFO L226 Difference]: Without dead ends: 985 [2024-11-24 02:01:45,322 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 02:01:45,325 INFO L435 NwaCegarLoop]: 693 mSDtfsCounter, 318 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:45,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1296 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:01:45,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2024-11-24 02:01:45,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 982. [2024-11-24 02:01:45,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 796 states have (on average 1.620603015075377) internal successors, (1290), 799 states have internal predecessors, (1290), 181 states have call successors, (181), 4 states have call predecessors, (181), 4 states have return successors, (181), 178 states have call predecessors, (181), 181 states have call successors, (181) [2024-11-24 02:01:45,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1652 transitions. [2024-11-24 02:01:45,501 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1652 transitions. Word has length 692 [2024-11-24 02:01:45,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:45,504 INFO L471 AbstractCegarLoop]: Abstraction has 982 states and 1652 transitions. [2024-11-24 02:01:45,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:01:45,505 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1652 transitions. [2024-11-24 02:01:45,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2024-11-24 02:01:45,514 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:45,515 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:01:45,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 02:01:45,515 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:45,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:45,516 INFO L85 PathProgramCache]: Analyzing trace with hash -521577118, now seen corresponding path program 1 times [2024-11-24 02:01:45,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:45,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909808638] [2024-11-24 02:01:45,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:45,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:45,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:46,073 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-24 02:01:46,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:46,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909808638] [2024-11-24 02:01:46,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909808638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:46,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:46,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:01:46,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105222320] [2024-11-24 02:01:46,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:46,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:01:46,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:46,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:01:46,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:46,077 INFO L87 Difference]: Start difference. First operand 982 states and 1652 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:01:46,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:46,215 INFO L93 Difference]: Finished difference Result 2790 states and 4701 transitions. [2024-11-24 02:01:46,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:01:46,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 693 [2024-11-24 02:01:46,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:46,229 INFO L225 Difference]: With dead ends: 2790 [2024-11-24 02:01:46,229 INFO L226 Difference]: Without dead ends: 1811 [2024-11-24 02:01:46,232 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 02:01:46,233 INFO L435 NwaCegarLoop]: 700 mSDtfsCounter, 330 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:46,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 1311 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:01:46,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2024-11-24 02:01:46,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1808. [2024-11-24 02:01:46,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1808 states, 1516 states have (on average 1.6279683377308707) internal successors, (2468), 1523 states have internal predecessors, (2468), 283 states have call successors, (283), 8 states have call predecessors, (283), 8 states have return successors, (283), 276 states have call predecessors, (283), 283 states have call successors, (283) [2024-11-24 02:01:46,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1808 states to 1808 states and 3034 transitions. [2024-11-24 02:01:46,385 INFO L78 Accepts]: Start accepts. Automaton has 1808 states and 3034 transitions. Word has length 693 [2024-11-24 02:01:46,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:46,388 INFO L471 AbstractCegarLoop]: Abstraction has 1808 states and 3034 transitions. [2024-11-24 02:01:46,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:01:46,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1808 states and 3034 transitions. [2024-11-24 02:01:46,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2024-11-24 02:01:46,398 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:46,399 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:01:46,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 02:01:46,399 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:46,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:46,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1967951844, now seen corresponding path program 1 times [2024-11-24 02:01:46,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:46,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907368317] [2024-11-24 02:01:46,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:46,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:47,752 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-24 02:01:47,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:47,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907368317] [2024-11-24 02:01:47,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907368317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:47,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:47,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:01:47,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182492878] [2024-11-24 02:01:47,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:47,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:01:47,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:47,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:01:47,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:01:47,762 INFO L87 Difference]: Start difference. First operand 1808 states and 3034 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:01:48,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:48,708 INFO L93 Difference]: Finished difference Result 5644 states and 9457 transitions. [2024-11-24 02:01:48,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:01:48,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 693 [2024-11-24 02:01:48,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:48,732 INFO L225 Difference]: With dead ends: 5644 [2024-11-24 02:01:48,732 INFO L226 Difference]: Without dead ends: 3839 [2024-11-24 02:01:48,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:01:48,740 INFO L435 NwaCegarLoop]: 657 mSDtfsCounter, 678 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1886 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:48,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 1886 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 02:01:48,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3839 states. [2024-11-24 02:01:49,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3839 to 3611. [2024-11-24 02:01:49,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3611 states, 3028 states have (on average 1.6261558784676353) internal successors, (4924), 3042 states have internal predecessors, (4924), 566 states have call successors, (566), 16 states have call predecessors, (566), 16 states have return successors, (566), 552 states have call predecessors, (566), 566 states have call successors, (566) [2024-11-24 02:01:49,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3611 states to 3611 states and 6056 transitions. [2024-11-24 02:01:49,134 INFO L78 Accepts]: Start accepts. Automaton has 3611 states and 6056 transitions. Word has length 693 [2024-11-24 02:01:49,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:49,135 INFO L471 AbstractCegarLoop]: Abstraction has 3611 states and 6056 transitions. [2024-11-24 02:01:49,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:01:49,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3611 states and 6056 transitions. [2024-11-24 02:01:49,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2024-11-24 02:01:49,145 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:49,145 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:01:49,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 02:01:49,146 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:49,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:49,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1561819567, now seen corresponding path program 1 times [2024-11-24 02:01:49,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:49,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893607325] [2024-11-24 02:01:49,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:49,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:50,030 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-24 02:01:50,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:50,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893607325] [2024-11-24 02:01:50,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893607325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:50,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:50,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:01:50,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779894569] [2024-11-24 02:01:50,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:50,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:01:50,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:50,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:01:50,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:01:50,034 INFO L87 Difference]: Start difference. First operand 3611 states and 6056 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:01:50,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:50,819 INFO L93 Difference]: Finished difference Result 10453 states and 17536 transitions. [2024-11-24 02:01:50,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:01:50,821 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 694 [2024-11-24 02:01:50,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:50,871 INFO L225 Difference]: With dead ends: 10453 [2024-11-24 02:01:50,871 INFO L226 Difference]: Without dead ends: 6845 [2024-11-24 02:01:50,883 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:01:50,885 INFO L435 NwaCegarLoop]: 601 mSDtfsCounter, 392 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 2318 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:50,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 2318 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 02:01:50,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6845 states. [2024-11-24 02:01:51,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6845 to 6827. [2024-11-24 02:01:51,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6827 states, 5908 states have (on average 1.6404874746106974) internal successors, (9692), 5938 states have internal predecessors, (9692), 886 states have call successors, (886), 32 states have call predecessors, (886), 32 states have return successors, (886), 856 states have call predecessors, (886), 886 states have call successors, (886) [2024-11-24 02:01:51,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6827 states to 6827 states and 11464 transitions. [2024-11-24 02:01:51,463 INFO L78 Accepts]: Start accepts. Automaton has 6827 states and 11464 transitions. Word has length 694 [2024-11-24 02:01:51,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:51,465 INFO L471 AbstractCegarLoop]: Abstraction has 6827 states and 11464 transitions. [2024-11-24 02:01:51,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:01:51,465 INFO L276 IsEmpty]: Start isEmpty. Operand 6827 states and 11464 transitions. [2024-11-24 02:01:51,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2024-11-24 02:01:51,476 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:51,477 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:01:51,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 02:01:51,477 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:51,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:51,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1962414163, now seen corresponding path program 1 times [2024-11-24 02:01:51,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:51,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511819626] [2024-11-24 02:01:51,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:51,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:52,548 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-24 02:01:52,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:52,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511819626] [2024-11-24 02:01:52,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511819626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:52,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:52,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:01:52,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219952751] [2024-11-24 02:01:52,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:52,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:01:52,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:52,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:01:52,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:52,553 INFO L87 Difference]: Start difference. First operand 6827 states and 11464 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:01:53,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:53,278 INFO L93 Difference]: Finished difference Result 20475 states and 34386 transitions. [2024-11-24 02:01:53,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:01:53,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 694 [2024-11-24 02:01:53,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:53,383 INFO L225 Difference]: With dead ends: 20475 [2024-11-24 02:01:53,383 INFO L226 Difference]: Without dead ends: 13651 [2024-11-24 02:01:53,401 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 02:01:53,402 INFO L435 NwaCegarLoop]: 626 mSDtfsCounter, 398 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:53,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 1246 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:01:53,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13651 states. [2024-11-24 02:01:54,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13651 to 13649. [2024-11-24 02:01:54,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13649 states, 11812 states have (on average 1.6352861496782933) internal successors, (19316), 11872 states have internal predecessors, (19316), 1772 states have call successors, (1772), 64 states have call predecessors, (1772), 64 states have return successors, (1772), 1712 states have call predecessors, (1772), 1772 states have call successors, (1772) [2024-11-24 02:01:54,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13649 states to 13649 states and 22860 transitions. [2024-11-24 02:01:54,703 INFO L78 Accepts]: Start accepts. Automaton has 13649 states and 22860 transitions. Word has length 694 [2024-11-24 02:01:54,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:54,705 INFO L471 AbstractCegarLoop]: Abstraction has 13649 states and 22860 transitions. [2024-11-24 02:01:54,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:01:54,705 INFO L276 IsEmpty]: Start isEmpty. Operand 13649 states and 22860 transitions. [2024-11-24 02:01:54,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2024-11-24 02:01:54,722 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:54,723 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:01:54,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 02:01:54,724 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:54,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:54,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1571896745, now seen corresponding path program 1 times [2024-11-24 02:01:54,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:54,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096256278] [2024-11-24 02:01:54,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:54,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:57,579 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-24 02:01:57,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:57,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096256278] [2024-11-24 02:01:57,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096256278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:57,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:57,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 02:01:57,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796587765] [2024-11-24 02:01:57,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:57,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 02:01:57,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:57,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 02:01:57,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:01:57,588 INFO L87 Difference]: Start difference. First operand 13649 states and 22860 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:02:09,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:09,047 INFO L93 Difference]: Finished difference Result 75207 states and 125529 transitions. [2024-11-24 02:02:09,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 02:02:09,049 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 694 [2024-11-24 02:02:09,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:09,315 INFO L225 Difference]: With dead ends: 75207 [2024-11-24 02:02:09,316 INFO L226 Difference]: Without dead ends: 61561 [2024-11-24 02:02:09,368 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-24 02:02:09,370 INFO L435 NwaCegarLoop]: 706 mSDtfsCounter, 1497 mSDsluCounter, 3177 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 3883 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:09,370 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 3883 Invalid, 982 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [109 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-24 02:02:09,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61561 states. [2024-11-24 02:02:12,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61561 to 29281. [2024-11-24 02:02:12,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29281 states, 25844 states have (on average 1.6426249806531497) internal successors, (42452), 25968 states have internal predecessors, (42452), 3308 states have call successors, (3308), 128 states have call predecessors, (3308), 128 states have return successors, (3308), 3184 states have call predecessors, (3308), 3308 states have call successors, (3308) [2024-11-24 02:02:12,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29281 states to 29281 states and 49068 transitions. [2024-11-24 02:02:12,839 INFO L78 Accepts]: Start accepts. Automaton has 29281 states and 49068 transitions. Word has length 694 [2024-11-24 02:02:12,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:12,840 INFO L471 AbstractCegarLoop]: Abstraction has 29281 states and 49068 transitions. [2024-11-24 02:02:12,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:02:12,841 INFO L276 IsEmpty]: Start isEmpty. Operand 29281 states and 49068 transitions. [2024-11-24 02:02:12,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2024-11-24 02:02:12,864 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:12,864 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:12,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 02:02:12,865 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:12,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:12,865 INFO L85 PathProgramCache]: Analyzing trace with hash -2035350805, now seen corresponding path program 1 times [2024-11-24 02:02:12,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:12,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807362042] [2024-11-24 02:02:12,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:12,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:13,846 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-24 02:02:13,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:13,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807362042] [2024-11-24 02:02:13,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807362042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:13,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:13,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:02:13,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099760273] [2024-11-24 02:02:13,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:13,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:02:13,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:13,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:02:13,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:02:13,850 INFO L87 Difference]: Start difference. First operand 29281 states and 49068 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:02:19,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:19,695 INFO L93 Difference]: Finished difference Result 101951 states and 170823 transitions. [2024-11-24 02:02:19,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:02:19,696 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 694 [2024-11-24 02:02:19,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:19,986 INFO L225 Difference]: With dead ends: 101951 [2024-11-24 02:02:19,987 INFO L226 Difference]: Without dead ends: 72673 [2024-11-24 02:02:20,049 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 02:02:20,050 INFO L435 NwaCegarLoop]: 875 mSDtfsCounter, 827 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 2206 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:20,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 2206 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 02:02:20,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72673 states. [2024-11-24 02:02:24,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72673 to 58733. [2024-11-24 02:02:24,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58733 states, 51860 states have (on average 1.6418819899730042) internal successors, (85148), 52108 states have internal predecessors, (85148), 6616 states have call successors, (6616), 256 states have call predecessors, (6616), 256 states have return successors, (6616), 6368 states have call predecessors, (6616), 6616 states have call successors, (6616) [2024-11-24 02:02:24,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58733 states to 58733 states and 98380 transitions. [2024-11-24 02:02:24,850 INFO L78 Accepts]: Start accepts. Automaton has 58733 states and 98380 transitions. Word has length 694 [2024-11-24 02:02:24,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:24,852 INFO L471 AbstractCegarLoop]: Abstraction has 58733 states and 98380 transitions. [2024-11-24 02:02:24,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:02:24,852 INFO L276 IsEmpty]: Start isEmpty. Operand 58733 states and 98380 transitions. [2024-11-24 02:02:24,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2024-11-24 02:02:24,906 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:24,907 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:24,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 02:02:24,908 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:24,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:24,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1355759774, now seen corresponding path program 1 times [2024-11-24 02:02:24,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:24,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020709865] [2024-11-24 02:02:24,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:24,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:28,822 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-24 02:02:28,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:28,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020709865] [2024-11-24 02:02:28,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020709865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:28,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:28,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 02:02:28,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262289922] [2024-11-24 02:02:28,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:28,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 02:02:28,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:28,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 02:02:28,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:02:28,825 INFO L87 Difference]: Start difference. First operand 58733 states and 98380 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:02:50,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:50,369 INFO L93 Difference]: Finished difference Result 202633 states and 338018 transitions. [2024-11-24 02:02:50,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 02:02:50,370 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 695 [2024-11-24 02:02:50,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:50,792 INFO L225 Difference]: With dead ends: 202633 [2024-11-24 02:02:50,792 INFO L226 Difference]: Without dead ends: 143903 [2024-11-24 02:02:50,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-24 02:02:50,905 INFO L435 NwaCegarLoop]: 1001 mSDtfsCounter, 1971 mSDsluCounter, 3935 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1971 SdHoareTripleChecker+Valid, 4936 SdHoareTripleChecker+Invalid, 1719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:50,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1971 Valid, 4936 Invalid, 1719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-24 02:02:51,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143903 states. [2024-11-24 02:02:58,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143903 to 59117. [2024-11-24 02:02:58,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59117 states, 52244 states have (on average 1.6420641604777582) internal successors, (85788), 52492 states have internal predecessors, (85788), 6616 states have call successors, (6616), 256 states have call predecessors, (6616), 256 states have return successors, (6616), 6368 states have call predecessors, (6616), 6616 states have call successors, (6616) [2024-11-24 02:02:58,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59117 states to 59117 states and 99020 transitions. [2024-11-24 02:02:58,602 INFO L78 Accepts]: Start accepts. Automaton has 59117 states and 99020 transitions. Word has length 695 [2024-11-24 02:02:58,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:58,603 INFO L471 AbstractCegarLoop]: Abstraction has 59117 states and 99020 transitions. [2024-11-24 02:02:58,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:02:58,603 INFO L276 IsEmpty]: Start isEmpty. Operand 59117 states and 99020 transitions. [2024-11-24 02:02:58,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2024-11-24 02:02:58,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:58,635 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:58,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 02:02:58,635 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:58,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:58,636 INFO L85 PathProgramCache]: Analyzing trace with hash -91828724, now seen corresponding path program 1 times [2024-11-24 02:02:58,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:58,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008996807] [2024-11-24 02:02:58,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:58,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:58,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:00,348 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-24 02:03:00,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:00,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008996807] [2024-11-24 02:03:00,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008996807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:00,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:00,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 02:03:00,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154034856] [2024-11-24 02:03:00,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:00,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 02:03:00,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:03:00,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 02:03:00,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:03:00,352 INFO L87 Difference]: Start difference. First operand 59117 states and 99020 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:03:22,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:03:22,067 INFO L93 Difference]: Finished difference Result 296439 states and 496055 transitions. [2024-11-24 02:03:22,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 02:03:22,068 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 695 [2024-11-24 02:03:22,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:03:22,778 INFO L225 Difference]: With dead ends: 296439 [2024-11-24 02:03:22,778 INFO L226 Difference]: Without dead ends: 237325 [2024-11-24 02:03:22,883 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-24 02:03:22,884 INFO L435 NwaCegarLoop]: 1089 mSDtfsCounter, 3228 mSDsluCounter, 2968 mSDsCounter, 0 mSdLazyCounter, 1877 mSolverCounterSat, 491 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3228 SdHoareTripleChecker+Valid, 4057 SdHoareTripleChecker+Invalid, 2368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 491 IncrementalHoareTripleChecker+Valid, 1877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:03:22,884 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3228 Valid, 4057 Invalid, 2368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [491 Valid, 1877 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-24 02:03:23,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237325 states. [2024-11-24 02:03:37,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237325 to 177825. [2024-11-24 02:03:37,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177825 states, 160644 states have (on average 1.6578023455591244) internal successors, (266316), 161264 states have internal predecessors, (266316), 16540 states have call successors, (16540), 640 states have call predecessors, (16540), 640 states have return successors, (16540), 15920 states have call predecessors, (16540), 16540 states have call successors, (16540) [2024-11-24 02:03:38,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177825 states to 177825 states and 299396 transitions. [2024-11-24 02:03:38,460 INFO L78 Accepts]: Start accepts. Automaton has 177825 states and 299396 transitions. Word has length 695 [2024-11-24 02:03:38,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:03:38,461 INFO L471 AbstractCegarLoop]: Abstraction has 177825 states and 299396 transitions. [2024-11-24 02:03:38,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-24 02:03:38,461 INFO L276 IsEmpty]: Start isEmpty. Operand 177825 states and 299396 transitions. [2024-11-24 02:03:38,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2024-11-24 02:03:38,515 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:38,516 INFO L218 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:38,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 02:03:38,516 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:38,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:38,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1408036070, now seen corresponding path program 1 times [2024-11-24 02:03:38,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:03:38,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452084087] [2024-11-24 02:03:38,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:38,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:03:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:40,043 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-24 02:03:40,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:40,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452084087] [2024-11-24 02:03:40,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452084087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:40,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:40,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:03:40,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519453240] [2024-11-24 02:03:40,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:40,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:03:40,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:03:40,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:03:40,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:03:40,053 INFO L87 Difference]: Start difference. First operand 177825 states and 299396 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107)