./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-19.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_741068c0-ae68-477c-83ae-f194e965b735/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_741068c0-ae68-477c-83ae-f194e965b735/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_741068c0-ae68-477c-83ae-f194e965b735/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_741068c0-ae68-477c-83ae-f194e965b735/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-19.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_741068c0-ae68-477c-83ae-f194e965b735/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_741068c0-ae68-477c-83ae-f194e965b735/bin/uautomizer-verify-aQ6SnzHsRB --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 5de4c46c7cdadd96e091f691a19e362de9991e387636643426a8b01f7f6942d0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:49:33,494 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:49:33,625 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_741068c0-ae68-477c-83ae-f194e965b735/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:49:33,633 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:49:33,633 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:49:33,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:49:33,665 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:49:33,665 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:49:33,665 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:49:33,666 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:49:33,666 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:49:33,666 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:49:33,667 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:49:33,667 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:49:33,667 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:49:33,667 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:49:33,668 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:49:33,668 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:49:33,668 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:49:33,668 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:49:33,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:49:33,669 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:49:33,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:49:33,669 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:49:33,669 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:49:33,669 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:49:33,670 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:49:33,670 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:49:33,670 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:49:33,670 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:49:33,670 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:49:33,671 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:49:33,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:49:33,671 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:49:33,671 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:49:33,671 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:49:33,672 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:49:33,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:49:33,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:49:33,672 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:49:33,672 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:49:33,672 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:49:33,673 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:49:33,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:49:33,673 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:49:33,673 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:49:33,673 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:49:33,673 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:49:33,674 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_741068c0-ae68-477c-83ae-f194e965b735/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 5de4c46c7cdadd96e091f691a19e362de9991e387636643426a8b01f7f6942d0 [2024-11-28 04:49:34,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:49:34,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:49:34,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:49:34,171 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:49:34,172 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:49:34,174 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_741068c0-ae68-477c-83ae-f194e965b735/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-19.i [2024-11-28 04:49:38,344 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_741068c0-ae68-477c-83ae-f194e965b735/bin/uautomizer-verify-aQ6SnzHsRB/data/430c76540/44b274b65a1a4645a36503183b70d531/FLAG495e381cc [2024-11-28 04:49:38,944 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:49:38,945 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_741068c0-ae68-477c-83ae-f194e965b735/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-19.i [2024-11-28 04:49:38,982 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_741068c0-ae68-477c-83ae-f194e965b735/bin/uautomizer-verify-aQ6SnzHsRB/data/430c76540/44b274b65a1a4645a36503183b70d531/FLAG495e381cc [2024-11-28 04:49:39,022 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_741068c0-ae68-477c-83ae-f194e965b735/bin/uautomizer-verify-aQ6SnzHsRB/data/430c76540/44b274b65a1a4645a36503183b70d531 [2024-11-28 04:49:39,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:49:39,029 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:49:39,034 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:49:39,035 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:49:39,043 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:49:39,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:39" (1/1) ... [2024-11-28 04:49:39,046 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f4df9af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:39, skipping insertion in model container [2024-11-28 04:49:39,049 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:39" (1/1) ... [2024-11-28 04:49:39,150 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:49:39,449 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_741068c0-ae68-477c-83ae-f194e965b735/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-19.i[916,929] [2024-11-28 04:49:39,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:49:39,780 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:49:39,809 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_741068c0-ae68-477c-83ae-f194e965b735/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-19.i[916,929] [2024-11-28 04:49:40,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:49:40,051 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:49:40,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:40 WrapperNode [2024-11-28 04:49:40,052 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:49:40,054 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:49:40,054 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:49:40,054 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:49:40,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:40" (1/1) ... [2024-11-28 04:49:40,112 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:40" (1/1) ... [2024-11-28 04:49:40,251 INFO L138 Inliner]: procedures = 26, calls = 103, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 742 [2024-11-28 04:49:40,251 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:49:40,252 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:49:40,253 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:49:40,253 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:49:40,267 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:40" (1/1) ... [2024-11-28 04:49:40,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:40" (1/1) ... [2024-11-28 04:49:40,287 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:40" (1/1) ... [2024-11-28 04:49:40,441 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]. [2024-11-28 04:49:40,441 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:40" (1/1) ... [2024-11-28 04:49:40,441 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:40" (1/1) ... [2024-11-28 04:49:40,497 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:40" (1/1) ... [2024-11-28 04:49:40,504 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:40" (1/1) ... [2024-11-28 04:49:40,524 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:40" (1/1) ... [2024-11-28 04:49:40,540 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:40" (1/1) ... [2024-11-28 04:49:40,556 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:40" (1/1) ... [2024-11-28 04:49:40,584 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:49:40,586 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:49:40,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:49:40,587 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:49:40,588 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:40" (1/1) ... [2024-11-28 04:49:40,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:49:40,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_741068c0-ae68-477c-83ae-f194e965b735/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:40,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_741068c0-ae68-477c-83ae-f194e965b735/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:49:40,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_741068c0-ae68-477c-83ae-f194e965b735/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:49:40,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:49:40,701 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:49:40,701 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:49:40,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:49:40,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:49:40,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:49:41,036 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:49:41,039 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:49:43,504 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-28 04:49:43,504 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:49:43,546 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:49:43,547 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:49:43,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:43 BoogieIcfgContainer [2024-11-28 04:49:43,552 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:49:43,555 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:49:43,558 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:49:43,571 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:49:43,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:49:39" (1/3) ... [2024-11-28 04:49:43,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62a388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:43, skipping insertion in model container [2024-11-28 04:49:43,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:40" (2/3) ... [2024-11-28 04:49:43,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62a388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:43, skipping insertion in model container [2024-11-28 04:49:43,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:43" (3/3) ... [2024-11-28 04:49:43,577 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-19.i [2024-11-28 04:49:43,606 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:49:43,611 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-19.i that has 2 procedures, 303 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:49:43,770 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:49:43,795 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;@72a98552, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:49:43,796 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:49:43,806 INFO L276 IsEmpty]: Start isEmpty. Operand has 303 states, 210 states have (on average 1.6142857142857143) internal successors, (339), 211 states have internal predecessors, (339), 90 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-28 04:49:43,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-28 04:49:43,897 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:43,899 INFO L218 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:49:43,900 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:49:43,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:43,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1421711827, now seen corresponding path program 1 times [2024-11-28 04:49:43,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:49:43,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487388128] [2024-11-28 04:49:43,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:49:43,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:49:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:49:45,359 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 178 refuted. 0 times theorem prover too weak. 15842 trivial. 0 not checked. [2024-11-28 04:49:45,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:49:45,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487388128] [2024-11-28 04:49:45,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487388128] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:49:45,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784533757] [2024-11-28 04:49:45,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:49:45,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:45,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_741068c0-ae68-477c-83ae-f194e965b735/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:45,373 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_741068c0-ae68-477c-83ae-f194e965b735/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:49:45,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_741068c0-ae68-477c-83ae-f194e965b735/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:49:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:49:46,250 INFO L256 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:49:46,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:49:46,454 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 15842 trivial. 0 not checked. [2024-11-28 04:49:46,454 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:49:46,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784533757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:49:46,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:49:46,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:49:46,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238538918] [2024-11-28 04:49:46,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:49:46,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:49:46,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:49:46,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:49:46,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:49:46,517 INFO L87 Difference]: Start difference. First operand has 303 states, 210 states have (on average 1.6142857142857143) internal successors, (339), 211 states have internal predecessors, (339), 90 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) Second operand has 2 states, 2 states have (on average 74.5) internal successors, (149), 2 states have internal predecessors, (149), 2 states have call successors, (90), 2 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 2 states have call successors, (90) [2024-11-28 04:49:46,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:46,683 INFO L93 Difference]: Finished difference Result 594 states and 1112 transitions. [2024-11-28 04:49:46,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:49:46,689 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 74.5) internal successors, (149), 2 states have internal predecessors, (149), 2 states have call successors, (90), 2 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 2 states have call successors, (90) Word has length 594 [2024-11-28 04:49:46,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:46,708 INFO L225 Difference]: With dead ends: 594 [2024-11-28 04:49:46,709 INFO L226 Difference]: Without dead ends: 294 [2024-11-28 04:49:46,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 595 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:49:46,734 INFO L435 NwaCegarLoop]: 498 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, 498 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 [2024-11-28 04:49:46,736 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:49:46,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-11-28 04:49:46,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2024-11-28 04:49:46,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 202 states have (on average 1.5742574257425743) internal successors, (318), 202 states have internal predecessors, (318), 90 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-28 04:49:46,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 498 transitions. [2024-11-28 04:49:46,946 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 498 transitions. Word has length 594 [2024-11-28 04:49:46,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:46,947 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 498 transitions. [2024-11-28 04:49:46,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 74.5) internal successors, (149), 2 states have internal predecessors, (149), 2 states have call successors, (90), 2 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 2 states have call successors, (90) [2024-11-28 04:49:46,948 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 498 transitions. [2024-11-28 04:49:47,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-28 04:49:47,012 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:47,013 INFO L218 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:49:47,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_741068c0-ae68-477c-83ae-f194e965b735/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:49:47,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_741068c0-ae68-477c-83ae-f194e965b735/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:49:47,225 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:49:47,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:47,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1787454339, now seen corresponding path program 1 times [2024-11-28 04:49:47,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:49:47,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090894749] [2024-11-28 04:49:47,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:49:47,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:49:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:49:48,604 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-28 04:49:48,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:49:48,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090894749] [2024-11-28 04:49:48,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090894749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:49:48,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:49:48,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:49:48,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909579457] [2024-11-28 04:49:48,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:49:48,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:49:48,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:49:48,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:49:48,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:49:48,615 INFO L87 Difference]: Start difference. First operand 294 states and 498 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-28 04:49:48,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:48,861 INFO L93 Difference]: Finished difference Result 774 states and 1321 transitions. [2024-11-28 04:49:48,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:49:48,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 594 [2024-11-28 04:49:48,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:48,882 INFO L225 Difference]: With dead ends: 774 [2024-11-28 04:49:48,883 INFO L226 Difference]: Without dead ends: 483 [2024-11-28 04:49:48,885 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 [2024-11-28 04:49:48,886 INFO L435 NwaCegarLoop]: 570 mSDtfsCounter, 305 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:48,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 1049 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:49:48,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-28 04:49:49,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 480. [2024-11-28 04:49:49,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 358 states have (on average 1.6229050279329609) internal successors, (581), 359 states have internal predecessors, (581), 119 states have call successors, (119), 2 states have call predecessors, (119), 2 states have return successors, (119), 118 states have call predecessors, (119), 119 states have call successors, (119) [2024-11-28 04:49:49,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 819 transitions. [2024-11-28 04:49:49,039 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 819 transitions. Word has length 594 [2024-11-28 04:49:49,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:49,046 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 819 transitions. [2024-11-28 04:49:49,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-28 04:49:49,048 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 819 transitions. [2024-11-28 04:49:49,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-28 04:49:49,075 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:49,076 INFO L218 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:49:49,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:49:49,077 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:49:49,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:49,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1291359231, now seen corresponding path program 1 times [2024-11-28 04:49:49,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:49:49,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630633239] [2024-11-28 04:49:49,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:49:49,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:49:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:49:50,167 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-28 04:49:50,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:49:50,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630633239] [2024-11-28 04:49:50,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630633239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:49:50,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:49:50,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:49:50,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519576984] [2024-11-28 04:49:50,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:49:50,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:49:50,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:49:50,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:49:50,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:49:50,177 INFO L87 Difference]: Start difference. First operand 480 states and 819 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-28 04:49:50,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:50,390 INFO L93 Difference]: Finished difference Result 1301 states and 2215 transitions. [2024-11-28 04:49:50,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:49:50,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 594 [2024-11-28 04:49:50,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:50,406 INFO L225 Difference]: With dead ends: 1301 [2024-11-28 04:49:50,406 INFO L226 Difference]: Without dead ends: 824 [2024-11-28 04:49:50,409 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 [2024-11-28 04:49:50,411 INFO L435 NwaCegarLoop]: 647 mSDtfsCounter, 291 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:50,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 1134 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:49:50,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2024-11-28 04:49:50,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 821. [2024-11-28 04:49:50,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 612 states have (on average 1.6094771241830066) internal successors, (985), 615 states have internal predecessors, (985), 204 states have call successors, (204), 4 states have call predecessors, (204), 4 states have return successors, (204), 201 states have call predecessors, (204), 204 states have call successors, (204) [2024-11-28 04:49:50,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1393 transitions. [2024-11-28 04:49:50,631 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1393 transitions. Word has length 594 [2024-11-28 04:49:50,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:50,638 INFO L471 AbstractCegarLoop]: Abstraction has 821 states and 1393 transitions. [2024-11-28 04:49:50,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-28 04:49:50,640 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1393 transitions. [2024-11-28 04:49:50,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-28 04:49:50,675 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:50,675 INFO L218 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:49:50,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:49:50,676 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:49:50,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:50,678 INFO L85 PathProgramCache]: Analyzing trace with hash 94844163, now seen corresponding path program 1 times [2024-11-28 04:49:50,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:49:50,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852432052] [2024-11-28 04:49:50,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:49:50,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:49:50,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:49:51,727 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-28 04:49:51,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:49:51,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852432052] [2024-11-28 04:49:51,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852432052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:49:51,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:49:51,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:49:51,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666824930] [2024-11-28 04:49:51,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:49:51,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:49:51,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:49:51,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:49:51,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:49:51,735 INFO L87 Difference]: Start difference. First operand 821 states and 1393 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-28 04:49:52,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:52,046 INFO L93 Difference]: Finished difference Result 2219 states and 3748 transitions. [2024-11-28 04:49:52,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:49:52,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 594 [2024-11-28 04:49:52,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:52,071 INFO L225 Difference]: With dead ends: 2219 [2024-11-28 04:49:52,072 INFO L226 Difference]: Without dead ends: 1401 [2024-11-28 04:49:52,076 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 [2024-11-28 04:49:52,078 INFO L435 NwaCegarLoop]: 684 mSDtfsCounter, 265 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:52,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 1166 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:49:52,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2024-11-28 04:49:52,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1398. [2024-11-28 04:49:52,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1398 states, 1013 states have (on average 1.5715695952615991) internal successors, (1592), 1020 states have internal predecessors, (1592), 376 states have call successors, (376), 8 states have call predecessors, (376), 8 states have return successors, (376), 369 states have call predecessors, (376), 376 states have call successors, (376) [2024-11-28 04:49:52,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 2344 transitions. [2024-11-28 04:49:52,434 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 2344 transitions. Word has length 594 [2024-11-28 04:49:52,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:52,439 INFO L471 AbstractCegarLoop]: Abstraction has 1398 states and 2344 transitions. [2024-11-28 04:49:52,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-28 04:49:52,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 2344 transitions. [2024-11-28 04:49:52,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-28 04:49:52,468 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:52,469 INFO L218 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:49:52,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:49:52,470 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:49:52,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:52,471 INFO L85 PathProgramCache]: Analyzing trace with hash 454247491, now seen corresponding path program 1 times [2024-11-28 04:49:52,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:49:52,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093338903] [2024-11-28 04:49:52,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:49:52,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:49:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:49:54,779 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-28 04:49:54,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:49:54,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093338903] [2024-11-28 04:49:54,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093338903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:49:54,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:49:54,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:49:54,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334207395] [2024-11-28 04:49:54,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:49:54,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:49:54,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:49:54,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:49:54,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:49:54,788 INFO L87 Difference]: Start difference. First operand 1398 states and 2344 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-28 04:49:56,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:56,485 INFO L93 Difference]: Finished difference Result 5344 states and 8932 transitions. [2024-11-28 04:49:56,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:49:56,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 594 [2024-11-28 04:49:56,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:56,537 INFO L225 Difference]: With dead ends: 5344 [2024-11-28 04:49:56,537 INFO L226 Difference]: Without dead ends: 3949 [2024-11-28 04:49:56,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:49:56,548 INFO L435 NwaCegarLoop]: 837 mSDtfsCounter, 687 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:56,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 1573 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:49:56,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3949 states. [2024-11-28 04:49:57,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3949 to 3084. [2024-11-28 04:49:57,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3084 states, 2359 states have (on average 1.5968630775752437) internal successors, (3767), 2374 states have internal predecessors, (3767), 708 states have call successors, (708), 16 states have call predecessors, (708), 16 states have return successors, (708), 693 states have call predecessors, (708), 708 states have call successors, (708) [2024-11-28 04:49:57,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3084 states to 3084 states and 5183 transitions. [2024-11-28 04:49:57,125 INFO L78 Accepts]: Start accepts. Automaton has 3084 states and 5183 transitions. Word has length 594 [2024-11-28 04:49:57,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:57,129 INFO L471 AbstractCegarLoop]: Abstraction has 3084 states and 5183 transitions. [2024-11-28 04:49:57,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-28 04:49:57,130 INFO L276 IsEmpty]: Start isEmpty. Operand 3084 states and 5183 transitions. [2024-11-28 04:49:57,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-28 04:49:57,146 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:57,146 INFO L218 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:49:57,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:49:57,147 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:49:57,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:57,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1841032901, now seen corresponding path program 1 times [2024-11-28 04:49:57,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:49:57,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856682170] [2024-11-28 04:49:57,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:49:57,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:49:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:49:58,501 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-28 04:49:58,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:49:58,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856682170] [2024-11-28 04:49:58,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856682170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:49:58,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:49:58,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:49:58,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916201217] [2024-11-28 04:49:58,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:49:58,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:49:58,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:49:58,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:49:58,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:49:58,515 INFO L87 Difference]: Start difference. First operand 3084 states and 5183 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-28 04:49:59,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:59,515 INFO L93 Difference]: Finished difference Result 8822 states and 14811 transitions. [2024-11-28 04:49:59,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:49:59,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 594 [2024-11-28 04:49:59,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:59,580 INFO L225 Difference]: With dead ends: 8822 [2024-11-28 04:49:59,580 INFO L226 Difference]: Without dead ends: 5741 [2024-11-28 04:49:59,598 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 [2024-11-28 04:49:59,600 INFO L435 NwaCegarLoop]: 640 mSDtfsCounter, 291 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:59,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 1126 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:49:59,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5741 states. [2024-11-28 04:50:00,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5741 to 5739. [2024-11-28 04:50:00,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5739 states, 4290 states have (on average 1.5715617715617716) internal successors, (6742), 4320 states have internal predecessors, (6742), 1416 states have call successors, (1416), 32 states have call predecessors, (1416), 32 states have return successors, (1416), 1386 states have call predecessors, (1416), 1416 states have call successors, (1416) [2024-11-28 04:50:00,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5739 states to 5739 states and 9574 transitions. [2024-11-28 04:50:00,853 INFO L78 Accepts]: Start accepts. Automaton has 5739 states and 9574 transitions. Word has length 594 [2024-11-28 04:50:00,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:50:00,857 INFO L471 AbstractCegarLoop]: Abstraction has 5739 states and 9574 transitions. [2024-11-28 04:50:00,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-28 04:50:00,858 INFO L276 IsEmpty]: Start isEmpty. Operand 5739 states and 9574 transitions. [2024-11-28 04:50:00,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-28 04:50:00,875 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:00,875 INFO L218 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:50:00,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:50:00,876 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:50:00,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:00,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1932262015, now seen corresponding path program 1 times [2024-11-28 04:50:00,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:50:00,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122702497] [2024-11-28 04:50:00,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:00,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:02,857 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-28 04:50:02,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:50:02,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122702497] [2024-11-28 04:50:02,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122702497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:50:02,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:50:02,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:50:02,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883182242] [2024-11-28 04:50:02,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:50:02,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:50:02,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:50:02,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:50:02,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:50:02,864 INFO L87 Difference]: Start difference. First operand 5739 states and 9574 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-28 04:50:06,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:50:06,191 INFO L93 Difference]: Finished difference Result 11239 states and 18715 transitions. [2024-11-28 04:50:06,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:50:06,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 594 [2024-11-28 04:50:06,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:50:06,308 INFO L225 Difference]: With dead ends: 11239 [2024-11-28 04:50:06,308 INFO L226 Difference]: Without dead ends: 8158 [2024-11-28 04:50:06,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:50:06,335 INFO L435 NwaCegarLoop]: 543 mSDtfsCounter, 960 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:50:06,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [960 Valid, 1443 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 04:50:06,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8158 states. [2024-11-28 04:50:07,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8158 to 5067. [2024-11-28 04:50:07,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5067 states, 4290 states have (on average 1.6564102564102565) internal successors, (7106), 4304 states have internal predecessors, (7106), 752 states have call successors, (752), 24 states have call predecessors, (752), 24 states have return successors, (752), 738 states have call predecessors, (752), 752 states have call successors, (752) [2024-11-28 04:50:07,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5067 states to 5067 states and 8610 transitions. [2024-11-28 04:50:07,393 INFO L78 Accepts]: Start accepts. Automaton has 5067 states and 8610 transitions. Word has length 594 [2024-11-28 04:50:07,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:50:07,395 INFO L471 AbstractCegarLoop]: Abstraction has 5067 states and 8610 transitions. [2024-11-28 04:50:07,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-28 04:50:07,396 INFO L276 IsEmpty]: Start isEmpty. Operand 5067 states and 8610 transitions. [2024-11-28 04:50:07,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-28 04:50:07,425 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:07,425 INFO L218 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:50:07,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:50:07,426 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:50:07,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:07,427 INFO L85 PathProgramCache]: Analyzing trace with hash 673761539, now seen corresponding path program 1 times [2024-11-28 04:50:07,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:50:07,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851580458] [2024-11-28 04:50:07,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:07,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:08,739 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-28 04:50:08,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:50:08,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851580458] [2024-11-28 04:50:08,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851580458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:50:08,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:50:08,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:50:08,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106166617] [2024-11-28 04:50:08,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:50:08,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:50:08,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:50:08,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:50:08,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:50:08,744 INFO L87 Difference]: Start difference. First operand 5067 states and 8610 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-28 04:50:09,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:50:09,645 INFO L93 Difference]: Finished difference Result 15195 states and 25824 transitions. [2024-11-28 04:50:09,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:50:09,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 594 [2024-11-28 04:50:09,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:50:09,761 INFO L225 Difference]: With dead ends: 15195 [2024-11-28 04:50:09,762 INFO L226 Difference]: Without dead ends: 10131 [2024-11-28 04:50:09,783 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 [2024-11-28 04:50:09,784 INFO L435 NwaCegarLoop]: 495 mSDtfsCounter, 274 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:50:09,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 984 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:50:09,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10131 states. [2024-11-28 04:50:10,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10131 to 10129. [2024-11-28 04:50:10,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10129 states, 8576 states have (on average 1.6529850746268657) internal successors, (14176), 8604 states have internal predecessors, (14176), 1504 states have call successors, (1504), 48 states have call predecessors, (1504), 48 states have return successors, (1504), 1476 states have call predecessors, (1504), 1504 states have call successors, (1504) [2024-11-28 04:50:11,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10129 states to 10129 states and 17184 transitions. [2024-11-28 04:50:11,024 INFO L78 Accepts]: Start accepts. Automaton has 10129 states and 17184 transitions. Word has length 594 [2024-11-28 04:50:11,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:50:11,026 INFO L471 AbstractCegarLoop]: Abstraction has 10129 states and 17184 transitions. [2024-11-28 04:50:11,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-28 04:50:11,027 INFO L276 IsEmpty]: Start isEmpty. Operand 10129 states and 17184 transitions. [2024-11-28 04:50:11,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-28 04:50:11,042 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:11,043 INFO L218 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:50:11,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:50:11,045 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:50:11,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:11,050 INFO L85 PathProgramCache]: Analyzing trace with hash 86955525, now seen corresponding path program 1 times [2024-11-28 04:50:11,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:50:11,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612300156] [2024-11-28 04:50:11,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:11,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:11,924 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-28 04:50:11,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:50:11,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612300156] [2024-11-28 04:50:11,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612300156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:50:11,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:50:11,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:50:11,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156976096] [2024-11-28 04:50:11,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:50:11,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:50:11,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:50:11,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:50:11,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:50:11,935 INFO L87 Difference]: Start difference. First operand 10129 states and 17184 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-28 04:50:13,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:50:13,697 INFO L93 Difference]: Finished difference Result 30381 states and 51546 transitions. [2024-11-28 04:50:13,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:50:13,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 594 [2024-11-28 04:50:13,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:50:13,812 INFO L225 Difference]: With dead ends: 30381 [2024-11-28 04:50:13,812 INFO L226 Difference]: Without dead ends: 20255 [2024-11-28 04:50:13,850 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 [2024-11-28 04:50:13,851 INFO L435 NwaCegarLoop]: 647 mSDtfsCounter, 317 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:50:13,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 1136 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:50:13,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20255 states. [2024-11-28 04:50:15,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20255 to 20253. [2024-11-28 04:50:16,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20253 states, 17148 states have (on average 1.6512712852810822) internal successors, (28316), 17204 states have internal predecessors, (28316), 3008 states have call successors, (3008), 96 states have call predecessors, (3008), 96 states have return successors, (3008), 2952 states have call predecessors, (3008), 3008 states have call successors, (3008) [2024-11-28 04:50:16,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20253 states to 20253 states and 34332 transitions. [2024-11-28 04:50:16,140 INFO L78 Accepts]: Start accepts. Automaton has 20253 states and 34332 transitions. Word has length 594 [2024-11-28 04:50:16,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:50:16,142 INFO L471 AbstractCegarLoop]: Abstraction has 20253 states and 34332 transitions. [2024-11-28 04:50:16,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-28 04:50:16,142 INFO L276 IsEmpty]: Start isEmpty. Operand 20253 states and 34332 transitions. [2024-11-28 04:50:16,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2024-11-28 04:50:16,164 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:16,165 INFO L218 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:50:16,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:50:16,165 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:50:16,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:16,166 INFO L85 PathProgramCache]: Analyzing trace with hash -553815874, now seen corresponding path program 1 times [2024-11-28 04:50:16,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:50:16,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455771497] [2024-11-28 04:50:16,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:16,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:17,251 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-28 04:50:17,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:50:17,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455771497] [2024-11-28 04:50:17,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455771497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:50:17,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:50:17,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:50:17,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811251053] [2024-11-28 04:50:17,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:50:17,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:50:17,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:50:17,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:50:17,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:50:17,255 INFO L87 Difference]: Start difference. First operand 20253 states and 34332 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-28 04:50:20,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:50:20,065 INFO L93 Difference]: Finished difference Result 51424 states and 87100 transitions. [2024-11-28 04:50:20,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:50:20,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 595 [2024-11-28 04:50:20,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:50:20,224 INFO L225 Difference]: With dead ends: 51424 [2024-11-28 04:50:20,224 INFO L226 Difference]: Without dead ends: 31174 [2024-11-28 04:50:20,290 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 [2024-11-28 04:50:20,291 INFO L435 NwaCegarLoop]: 562 mSDtfsCounter, 289 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:50:20,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 1036 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:50:20,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31174 states. [2024-11-28 04:50:24,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31174 to 31060. [2024-11-28 04:50:24,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31060 states, 26186 states have (on average 1.6382036202550982) internal successors, (42898), 26267 states have internal predecessors, (42898), 4712 states have call successors, (4712), 161 states have call predecessors, (4712), 161 states have return successors, (4712), 4631 states have call predecessors, (4712), 4712 states have call successors, (4712) [2024-11-28 04:50:24,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31060 states to 31060 states and 52322 transitions. [2024-11-28 04:50:24,470 INFO L78 Accepts]: Start accepts. Automaton has 31060 states and 52322 transitions. Word has length 595 [2024-11-28 04:50:24,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:50:24,472 INFO L471 AbstractCegarLoop]: Abstraction has 31060 states and 52322 transitions. [2024-11-28 04:50:24,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-28 04:50:24,473 INFO L276 IsEmpty]: Start isEmpty. Operand 31060 states and 52322 transitions. [2024-11-28 04:50:24,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2024-11-28 04:50:24,518 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:24,519 INFO L218 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:50:24,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:50:24,519 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:50:24,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:24,521 INFO L85 PathProgramCache]: Analyzing trace with hash 23776324, now seen corresponding path program 1 times [2024-11-28 04:50:24,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:50:24,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263435049] [2024-11-28 04:50:24,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:24,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:24,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:28,093 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-28 04:50:28,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:50:28,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263435049] [2024-11-28 04:50:28,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263435049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:50:28,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:50:28,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:50:28,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784886332] [2024-11-28 04:50:28,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:50:28,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:50:28,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:50:28,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:50:28,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:50:28,098 INFO L87 Difference]: Start difference. First operand 31060 states and 52322 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-28 04:50:34,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:50:34,978 INFO L93 Difference]: Finished difference Result 90200 states and 152260 transitions. [2024-11-28 04:50:34,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:50:34,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 596 [2024-11-28 04:50:34,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:50:35,246 INFO L225 Difference]: With dead ends: 90200 [2024-11-28 04:50:35,247 INFO L226 Difference]: Without dead ends: 59238 [2024-11-28 04:50:35,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:50:35,319 INFO L435 NwaCegarLoop]: 537 mSDtfsCounter, 328 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:50:35,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 960 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:50:35,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59238 states. [2024-11-28 04:50:44,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59238 to 59188. [2024-11-28 04:50:44,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59188 states, 51146 states have (on average 1.6509991006139288) internal successors, (84442), 51323 states have internal predecessors, (84442), 7784 states have call successors, (7784), 257 states have call predecessors, (7784), 257 states have return successors, (7784), 7607 states have call predecessors, (7784), 7784 states have call successors, (7784) [2024-11-28 04:50:44,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59188 states to 59188 states and 100010 transitions. [2024-11-28 04:50:44,587 INFO L78 Accepts]: Start accepts. Automaton has 59188 states and 100010 transitions. Word has length 596 [2024-11-28 04:50:44,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:50:44,589 INFO L471 AbstractCegarLoop]: Abstraction has 59188 states and 100010 transitions. [2024-11-28 04:50:44,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-28 04:50:44,590 INFO L276 IsEmpty]: Start isEmpty. Operand 59188 states and 100010 transitions. [2024-11-28 04:50:44,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2024-11-28 04:50:44,637 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:44,637 INFO L218 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:50:44,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:50:44,638 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:50:44,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:44,639 INFO L85 PathProgramCache]: Analyzing trace with hash 100677122, now seen corresponding path program 1 times [2024-11-28 04:50:44,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:50:44,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341054029] [2024-11-28 04:50:44,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:44,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:44,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:48,053 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-28 04:50:48,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:50:48,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341054029] [2024-11-28 04:50:48,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341054029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:50:48,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:50:48,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:50:48,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790956748] [2024-11-28 04:50:48,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:50:48,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:50:48,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:50:48,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:50:48,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:50:48,059 INFO L87 Difference]: Start difference. First operand 59188 states and 100010 transitions. Second operand has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-28 04:50:58,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:50:58,247 INFO L93 Difference]: Finished difference Result 145472 states and 245956 transitions. [2024-11-28 04:50:58,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:50:58,248 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 596 [2024-11-28 04:50:58,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:50:58,633 INFO L225 Difference]: With dead ends: 145472 [2024-11-28 04:50:58,634 INFO L226 Difference]: Without dead ends: 86382 [2024-11-28 04:50:58,754 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:50:58,755 INFO L435 NwaCegarLoop]: 607 mSDtfsCounter, 968 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 445 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:50:58,756 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 1236 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [445 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:50:58,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86382 states.