./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-45.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_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-45.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e3c6b69598e12a8964c97c957d1e8ad33abec465af98c95276a8354401884a2e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:33:55,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:33:55,778 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:33:55,784 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:33:55,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:33:55,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:33:55,810 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:33:55,810 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:33:55,811 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:33:55,811 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:33:55,811 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:33:55,811 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:33:55,812 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:33:55,812 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:33:55,812 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:33:55,812 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:33:55,812 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:33:55,812 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:33:55,812 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:33:55,812 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:33:55,813 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:33:55,813 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:33:55,813 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:33:55,813 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:33:55,813 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:33:55,813 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:33:55,813 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:33:55,813 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:33:55,813 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:33:55,813 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:33:55,814 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:33:55,814 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:33:55,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:33:55,814 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:33:55,814 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:33:55,814 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:33:55,814 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:33:55,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:33:55,814 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:33:55,815 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:33:55,815 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:33:55,815 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:33:55,815 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:33:55,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:33:55,815 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:33:55,815 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:33:55,815 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:33:55,815 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:33:55,815 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_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3c6b69598e12a8964c97c957d1e8ad33abec465af98c95276a8354401884a2e [2024-12-02 11:33:56,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:33:56,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:33:56,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:33:56,126 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:33:56,126 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:33:56,128 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-45.i [2024-12-02 11:33:59,470 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/data/52b1ef913/c5ffd0224f9c49d59a0bfddd308b1a86/FLAG0afbcba79 [2024-12-02 11:33:59,719 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:33:59,719 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-45.i [2024-12-02 11:33:59,730 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/data/52b1ef913/c5ffd0224f9c49d59a0bfddd308b1a86/FLAG0afbcba79 [2024-12-02 11:33:59,748 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/data/52b1ef913/c5ffd0224f9c49d59a0bfddd308b1a86 [2024-12-02 11:33:59,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:33:59,753 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:33:59,755 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:33:59,755 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:33:59,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:33:59,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:33:59" (1/1) ... [2024-12-02 11:33:59,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cc8496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:59, skipping insertion in model container [2024-12-02 11:33:59,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:33:59" (1/1) ... [2024-12-02 11:33:59,785 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:33:59,947 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_533d2e15-e123-49f6-a75f-66d9fd996271/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-45.i[915,928] [2024-12-02 11:34:00,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:34:00,044 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:34:00,056 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_533d2e15-e123-49f6-a75f-66d9fd996271/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-45.i[915,928] [2024-12-02 11:34:00,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:34:00,122 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:34:00,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:00 WrapperNode [2024-12-02 11:34:00,123 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:34:00,124 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:34:00,124 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:34:00,124 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:34:00,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:00" (1/1) ... [2024-12-02 11:34:00,144 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:00" (1/1) ... [2024-12-02 11:34:00,182 INFO L138 Inliner]: procedures = 26, calls = 54, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 238 [2024-12-02 11:34:00,183 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:34:00,183 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:34:00,183 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:34:00,184 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:34:00,195 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:00" (1/1) ... [2024-12-02 11:34:00,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:00" (1/1) ... [2024-12-02 11:34:00,199 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:00" (1/1) ... [2024-12-02 11:34:00,219 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 11:34:00,219 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:00" (1/1) ... [2024-12-02 11:34:00,219 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:00" (1/1) ... [2024-12-02 11:34:00,229 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:00" (1/1) ... [2024-12-02 11:34:00,231 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:00" (1/1) ... [2024-12-02 11:34:00,235 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:00" (1/1) ... [2024-12-02 11:34:00,237 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:00" (1/1) ... [2024-12-02 11:34:00,239 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:00" (1/1) ... [2024-12-02 11:34:00,243 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:34:00,244 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:34:00,244 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:34:00,244 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:34:00,245 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:00" (1/1) ... [2024-12-02 11:34:00,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:34:00,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:34:00,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:34:00,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:34:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:34:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:34:00,312 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:34:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:34:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:34:00,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:34:00,414 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:34:00,416 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:34:00,832 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-12-02 11:34:00,832 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:34:00,847 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:34:00,847 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:34:00,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:34:00 BoogieIcfgContainer [2024-12-02 11:34:00,848 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:34:00,851 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:34:00,851 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:34:00,857 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:34:00,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:33:59" (1/3) ... [2024-12-02 11:34:00,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de81cf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:34:00, skipping insertion in model container [2024-12-02 11:34:00,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:34:00" (2/3) ... [2024-12-02 11:34:00,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de81cf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:34:00, skipping insertion in model container [2024-12-02 11:34:00,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:34:00" (3/3) ... [2024-12-02 11:34:00,860 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-45.i [2024-12-02 11:34:00,879 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:34:00,882 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-45.i that has 2 procedures, 107 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:34:00,952 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:34:00,963 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;@5b7a5717, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:34:00,963 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:34:00,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 63 states have (on average 1.380952380952381) internal successors, (87), 64 states have internal predecessors, (87), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-12-02 11:34:00,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-12-02 11:34:00,983 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:34:00,984 INFO L218 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:34:00,985 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:34:00,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:34:00,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1194115112, now seen corresponding path program 1 times [2024-12-02 11:34:00,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:34:00,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043470940] [2024-12-02 11:34:00,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:34:00,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:34:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:34:01,405 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 3200 trivial. 0 not checked. [2024-12-02 11:34:01,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:34:01,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043470940] [2024-12-02 11:34:01,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043470940] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:34:01,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079787732] [2024-12-02 11:34:01,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:34:01,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:34:01,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:34:01,410 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:34:01,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:34:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:34:01,652 INFO L256 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:34:01,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:34:01,706 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 3200 trivial. 0 not checked. [2024-12-02 11:34:01,706 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:34:01,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079787732] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:34:01,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:34:01,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 11:34:01,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141432625] [2024-12-02 11:34:01,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:34:01,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:34:01,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:34:01,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:34:01,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:34:01,735 INFO L87 Difference]: Start difference. First operand has 107 states, 63 states have (on average 1.380952380952381) internal successors, (87), 64 states have internal predecessors, (87), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 2 states have call successors, (41) [2024-12-02 11:34:01,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:34:01,772 INFO L93 Difference]: Finished difference Result 207 states and 373 transitions. [2024-12-02 11:34:01,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:34:01,774 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 2 states have call successors, (41) Word has length 255 [2024-12-02 11:34:01,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:34:01,781 INFO L225 Difference]: With dead ends: 207 [2024-12-02 11:34:01,781 INFO L226 Difference]: Without dead ends: 103 [2024-12-02 11:34:01,804 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:34:01,807 INFO L435 NwaCegarLoop]: 162 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, 162 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:34:01,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:34:01,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-12-02 11:34:01,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-12-02 11:34:01,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 60 states have internal predecessors, (80), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-12-02 11:34:01,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 162 transitions. [2024-12-02 11:34:01,855 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 162 transitions. Word has length 255 [2024-12-02 11:34:01,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:34:01,855 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 162 transitions. [2024-12-02 11:34:01,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 2 states have call successors, (41) [2024-12-02 11:34:01,856 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 162 transitions. [2024-12-02 11:34:01,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-12-02 11:34:01,860 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:34:01,861 INFO L218 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:34:01,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:34:02,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 11:34:02,062 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:34:02,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:34:02,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1199267662, now seen corresponding path program 1 times [2024-12-02 11:34:02,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:34:02,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372110186] [2024-12-02 11:34:02,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:34:02,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:34:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:34:02,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-12-02 11:34:02,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:34:02,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372110186] [2024-12-02 11:34:02,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372110186] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:34:02,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:34:02,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:34:02,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394983049] [2024-12-02 11:34:02,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:34:02,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:34:02,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:34:02,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:34:02,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:34:02,365 INFO L87 Difference]: Start difference. First operand 103 states and 162 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:34:02,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:34:02,427 INFO L93 Difference]: Finished difference Result 260 states and 409 transitions. [2024-12-02 11:34:02,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:34:02,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 255 [2024-12-02 11:34:02,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:34:02,432 INFO L225 Difference]: With dead ends: 260 [2024-12-02 11:34:02,432 INFO L226 Difference]: Without dead ends: 160 [2024-12-02 11:34:02,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:34:02,434 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 91 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:34:02,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 347 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:34:02,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-12-02 11:34:02,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 157. [2024-12-02 11:34:02,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 97 states have (on average 1.3711340206185567) internal successors, (133), 98 states have internal predecessors, (133), 57 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2024-12-02 11:34:02,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 247 transitions. [2024-12-02 11:34:02,466 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 247 transitions. Word has length 255 [2024-12-02 11:34:02,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:34:02,467 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 247 transitions. [2024-12-02 11:34:02,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:34:02,468 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 247 transitions. [2024-12-02 11:34:02,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-12-02 11:34:02,473 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:34:02,473 INFO L218 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:34:02,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:34:02,473 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:34:02,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:34:02,474 INFO L85 PathProgramCache]: Analyzing trace with hash -980412944, now seen corresponding path program 1 times [2024-12-02 11:34:02,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:34:02,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253195577] [2024-12-02 11:34:02,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:34:02,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:34:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:34:02,735 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-12-02 11:34:02,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:34:02,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253195577] [2024-12-02 11:34:02,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253195577] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:34:02,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:34:02,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:34:02,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744280777] [2024-12-02 11:34:02,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:34:02,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:34:02,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:34:02,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:34:02,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:34:02,738 INFO L87 Difference]: Start difference. First operand 157 states and 247 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:34:02,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:34:02,821 INFO L93 Difference]: Finished difference Result 459 states and 723 transitions. [2024-12-02 11:34:02,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:34:02,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 255 [2024-12-02 11:34:02,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:34:02,829 INFO L225 Difference]: With dead ends: 459 [2024-12-02 11:34:02,829 INFO L226 Difference]: Without dead ends: 305 [2024-12-02 11:34:02,831 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:34:02,832 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 151 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:34:02,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 317 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:34:02,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-12-02 11:34:02,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 303. [2024-12-02 11:34:02,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 184 states have (on average 1.326086956521739) internal successors, (244), 186 states have internal predecessors, (244), 114 states have call successors, (114), 4 states have call predecessors, (114), 4 states have return successors, (114), 112 states have call predecessors, (114), 114 states have call successors, (114) [2024-12-02 11:34:02,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 472 transitions. [2024-12-02 11:34:02,917 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 472 transitions. Word has length 255 [2024-12-02 11:34:02,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:34:02,918 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 472 transitions. [2024-12-02 11:34:02,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:34:02,918 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 472 transitions. [2024-12-02 11:34:02,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-12-02 11:34:02,923 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:34:02,923 INFO L218 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:34:02,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:34:02,923 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:34:02,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:34:02,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1014299505, now seen corresponding path program 1 times [2024-12-02 11:34:02,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:34:02,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933089380] [2024-12-02 11:34:02,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:34:02,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:34:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:34:03,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-12-02 11:34:03,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:34:03,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933089380] [2024-12-02 11:34:03,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933089380] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:34:03,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:34:03,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:34:03,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665246600] [2024-12-02 11:34:03,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:34:03,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:34:03,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:34:03,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:34:03,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:34:03,406 INFO L87 Difference]: Start difference. First operand 303 states and 472 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:34:03,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:34:03,488 INFO L93 Difference]: Finished difference Result 903 states and 1410 transitions. [2024-12-02 11:34:03,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:34:03,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 256 [2024-12-02 11:34:03,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:34:03,495 INFO L225 Difference]: With dead ends: 903 [2024-12-02 11:34:03,496 INFO L226 Difference]: Without dead ends: 603 [2024-12-02 11:34:03,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:34:03,498 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 83 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:34:03,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 314 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:34:03,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2024-12-02 11:34:03,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 599. [2024-12-02 11:34:03,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 362 states have (on average 1.3149171270718232) internal successors, (476), 366 states have internal predecessors, (476), 228 states have call successors, (228), 8 states have call predecessors, (228), 8 states have return successors, (228), 224 states have call predecessors, (228), 228 states have call successors, (228) [2024-12-02 11:34:03,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 932 transitions. [2024-12-02 11:34:03,639 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 932 transitions. Word has length 256 [2024-12-02 11:34:03,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:34:03,640 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 932 transitions. [2024-12-02 11:34:03,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:34:03,641 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 932 transitions. [2024-12-02 11:34:03,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-12-02 11:34:03,645 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:34:03,645 INFO L218 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:34:03,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:34:03,646 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:34:03,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:34:03,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1692319889, now seen corresponding path program 1 times [2024-12-02 11:34:03,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:34:03,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465271449] [2024-12-02 11:34:03,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:34:03,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:34:03,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:36:40,437 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-12-02 11:36:40,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:36:40,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465271449] [2024-12-02 11:36:40,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465271449] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:36:40,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:36:40,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 11:36:40,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999363442] [2024-12-02 11:36:40,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:36:40,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 11:36:40,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:36:40,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 11:36:40,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:36:40,440 INFO L87 Difference]: Start difference. First operand 599 states and 932 transitions. Second operand has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:36:45,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:36:45,462 INFO L93 Difference]: Finished difference Result 1818 states and 2660 transitions. [2024-12-02 11:36:45,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 11:36:45,463 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 256 [2024-12-02 11:36:45,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:36:45,470 INFO L225 Difference]: With dead ends: 1818 [2024-12-02 11:36:45,470 INFO L226 Difference]: Without dead ends: 1222 [2024-12-02 11:36:45,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=152, Invalid=354, Unknown=0, NotChecked=0, Total=506 [2024-12-02 11:36:45,474 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 241 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:36:45,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 1141 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 11:36:45,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2024-12-02 11:36:45,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1027. [2024-12-02 11:36:45,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 723 states have (on average 1.301521438450899) internal successors, (941), 744 states have internal predecessors, (941), 278 states have call successors, (278), 25 states have call predecessors, (278), 25 states have return successors, (278), 257 states have call predecessors, (278), 278 states have call successors, (278) [2024-12-02 11:36:45,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1497 transitions. [2024-12-02 11:36:45,652 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1497 transitions. Word has length 256 [2024-12-02 11:36:45,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:36:45,653 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1497 transitions. [2024-12-02 11:36:45,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:36:45,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1497 transitions. [2024-12-02 11:36:45,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-12-02 11:36:45,657 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:36:45,657 INFO L218 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:36:45,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:36:45,657 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:36:45,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:36:45,658 INFO L85 PathProgramCache]: Analyzing trace with hash 82687473, now seen corresponding path program 1 times [2024-12-02 11:36:45,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:36:45,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015358359] [2024-12-02 11:36:45,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:36:45,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:36:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:19,417 WARN L286 SmtUtils]: Spent 8.81s on a formula simplification. DAG size of input: 251 DAG size of output: 216 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 11:40:19,472 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-12-02 11:40:19,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:19,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015358359] [2024-12-02 11:40:19,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015358359] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:19,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:19,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 11:40:19,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240343170] [2024-12-02 11:40:19,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:19,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 11:40:19,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:19,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 11:40:19,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:40:19,474 INFO L87 Difference]: Start difference. First operand 1027 states and 1497 transitions. Second operand has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:40:26,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:26,186 INFO L93 Difference]: Finished difference Result 1222 states and 1715 transitions. [2024-12-02 11:40:26,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 11:40:26,186 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 256 [2024-12-02 11:40:26,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:26,191 INFO L225 Difference]: With dead ends: 1222 [2024-12-02 11:40:26,191 INFO L226 Difference]: Without dead ends: 1220 [2024-12-02 11:40:26,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 19.8s TimeCoverageRelationStatistics Valid=152, Invalid=354, Unknown=0, NotChecked=0, Total=506 [2024-12-02 11:40:26,193 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 254 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:26,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 857 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 11:40:26,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2024-12-02 11:40:26,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1019. [2024-12-02 11:40:26,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 715 states have (on average 1.304895104895105) internal successors, (933), 736 states have internal predecessors, (933), 278 states have call successors, (278), 25 states have call predecessors, (278), 25 states have return successors, (278), 257 states have call predecessors, (278), 278 states have call successors, (278) [2024-12-02 11:40:26,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1489 transitions. [2024-12-02 11:40:26,372 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1489 transitions. Word has length 256 [2024-12-02 11:40:26,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:26,373 INFO L471 AbstractCegarLoop]: Abstraction has 1019 states and 1489 transitions. [2024-12-02 11:40:26,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:40:26,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1489 transitions. [2024-12-02 11:40:26,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-12-02 11:40:26,375 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:26,375 INFO L218 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:26,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:40:26,376 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:26,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:26,376 INFO L85 PathProgramCache]: Analyzing trace with hash 854829671, now seen corresponding path program 1 times [2024-12-02 11:40:26,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:26,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668461389] [2024-12-02 11:40:26,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:26,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:42,672 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-12-02 11:40:42,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:42,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668461389] [2024-12-02 11:40:42,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668461389] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:42,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:42,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:40:42,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425601399] [2024-12-02 11:40:42,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:42,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:40:42,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:42,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:40:42,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:40:42,674 INFO L87 Difference]: Start difference. First operand 1019 states and 1489 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:40:43,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:43,464 INFO L93 Difference]: Finished difference Result 2491 states and 3540 transitions. [2024-12-02 11:40:43,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:40:43,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 256 [2024-12-02 11:40:43,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:43,470 INFO L225 Difference]: With dead ends: 2491 [2024-12-02 11:40:43,470 INFO L226 Difference]: Without dead ends: 1483 [2024-12-02 11:40:43,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:40:43,473 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 92 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:43,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 484 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:40:43,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-12-02 11:40:43,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1139. [2024-12-02 11:40:43,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1139 states, 795 states have (on average 1.2842767295597484) internal successors, (1021), 816 states have internal predecessors, (1021), 310 states have call successors, (310), 33 states have call predecessors, (310), 33 states have return successors, (310), 289 states have call predecessors, (310), 310 states have call successors, (310) [2024-12-02 11:40:43,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 1641 transitions. [2024-12-02 11:40:43,676 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 1641 transitions. Word has length 256 [2024-12-02 11:40:43,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:43,676 INFO L471 AbstractCegarLoop]: Abstraction has 1139 states and 1641 transitions. [2024-12-02 11:40:43,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:40:43,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 1641 transitions. [2024-12-02 11:40:43,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-12-02 11:40:43,685 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:43,685 INFO L218 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:43,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:40:43,686 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:43,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:43,687 INFO L85 PathProgramCache]: Analyzing trace with hash 45483045, now seen corresponding path program 1 times [2024-12-02 11:40:43,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:43,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037462645] [2024-12-02 11:40:43,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:43,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:43,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:45,770 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-12-02 11:40:45,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:45,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037462645] [2024-12-02 11:40:45,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037462645] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:45,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:45,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:40:45,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248904509] [2024-12-02 11:40:45,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:45,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:40:45,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:45,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:40:45,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:40:45,772 INFO L87 Difference]: Start difference. First operand 1139 states and 1641 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:40:46,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:46,497 INFO L93 Difference]: Finished difference Result 2611 states and 3684 transitions. [2024-12-02 11:40:46,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:40:46,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 256 [2024-12-02 11:40:46,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:46,506 INFO L225 Difference]: With dead ends: 2611 [2024-12-02 11:40:46,506 INFO L226 Difference]: Without dead ends: 1483 [2024-12-02 11:40:46,509 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:40:46,510 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 77 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:46,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 535 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:40:46,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-12-02 11:40:46,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1099. [2024-12-02 11:40:46,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 755 states have (on average 1.2781456953642385) internal successors, (965), 776 states have internal predecessors, (965), 310 states have call successors, (310), 33 states have call predecessors, (310), 33 states have return successors, (310), 289 states have call predecessors, (310), 310 states have call successors, (310) [2024-12-02 11:40:46,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1585 transitions. [2024-12-02 11:40:46,723 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1585 transitions. Word has length 256 [2024-12-02 11:40:46,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:46,723 INFO L471 AbstractCegarLoop]: Abstraction has 1099 states and 1585 transitions. [2024-12-02 11:40:46,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:40:46,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1585 transitions. [2024-12-02 11:40:46,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-12-02 11:40:46,726 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:46,726 INFO L218 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:40:46,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:40:46,726 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:46,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:46,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1322783729, now seen corresponding path program 1 times [2024-12-02 11:40:46,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:46,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839219796] [2024-12-02 11:40:46,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:46,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:31,855 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-12-02 11:43:31,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:43:31,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839219796] [2024-12-02 11:43:31,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839219796] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:43:31,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:43:31,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 11:43:31,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780880019] [2024-12-02 11:43:31,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:31,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 11:43:31,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:43:31,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 11:43:31,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:43:31,857 INFO L87 Difference]: Start difference. First operand 1099 states and 1585 transitions. Second operand has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:43:34,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:34,989 INFO L93 Difference]: Finished difference Result 2615 states and 3676 transitions. [2024-12-02 11:43:34,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 11:43:34,990 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 256 [2024-12-02 11:43:34,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:34,997 INFO L225 Difference]: With dead ends: 2615 [2024-12-02 11:43:34,997 INFO L226 Difference]: Without dead ends: 1527 [2024-12-02 11:43:35,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2024-12-02 11:43:35,001 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 237 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:35,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 1240 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 11:43:35,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2024-12-02 11:43:35,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1342. [2024-12-02 11:43:35,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 964 states have (on average 1.2676348547717842) internal successors, (1222), 993 states have internal predecessors, (1222), 328 states have call successors, (328), 49 states have call predecessors, (328), 49 states have return successors, (328), 299 states have call predecessors, (328), 328 states have call successors, (328) [2024-12-02 11:43:35,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1878 transitions. [2024-12-02 11:43:35,356 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1878 transitions. Word has length 256 [2024-12-02 11:43:35,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:35,357 INFO L471 AbstractCegarLoop]: Abstraction has 1342 states and 1878 transitions. [2024-12-02 11:43:35,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:43:35,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1878 transitions. [2024-12-02 11:43:35,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-12-02 11:43:35,359 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:35,359 INFO L218 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:43:35,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:43:35,359 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:35,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:35,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1197176205, now seen corresponding path program 1 times [2024-12-02 11:43:35,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:43:35,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922052515] [2024-12-02 11:43:35,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:35,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:43:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:45:29,293 WARN L286 SmtUtils]: Spent 7.25s on a formula simplification. DAG size of input: 246 DAG size of output: 191 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 11:47:36,437 WARN L286 SmtUtils]: Spent 13.15s on a formula simplification. DAG size of input: 250 DAG size of output: 193 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 11:47:36,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-12-02 11:47:36,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:47:36,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922052515] [2024-12-02 11:47:36,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922052515] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:47:36,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:47:36,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 11:47:36,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73877814] [2024-12-02 11:47:36,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:47:36,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 11:47:36,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:47:36,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 11:47:36,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:47:36,495 INFO L87 Difference]: Start difference. First operand 1342 states and 1878 transitions. Second operand has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:47:42,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:47:42,853 INFO L93 Difference]: Finished difference Result 1451 states and 1995 transitions. [2024-12-02 11:47:42,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 11:47:42,853 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 256 [2024-12-02 11:47:42,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:47:42,862 INFO L225 Difference]: With dead ends: 1451 [2024-12-02 11:47:42,862 INFO L226 Difference]: Without dead ends: 1449 [2024-12-02 11:47:42,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-12-02 11:47:42,864 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 165 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:47:42,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1067 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 11:47:42,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2024-12-02 11:47:43,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1334. [2024-12-02 11:47:43,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 956 states have (on average 1.2698744769874477) internal successors, (1214), 985 states have internal predecessors, (1214), 328 states have call successors, (328), 49 states have call predecessors, (328), 49 states have return successors, (328), 299 states have call predecessors, (328), 328 states have call successors, (328) [2024-12-02 11:47:43,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 1870 transitions. [2024-12-02 11:47:43,185 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 1870 transitions. Word has length 256 [2024-12-02 11:47:43,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:47:43,186 INFO L471 AbstractCegarLoop]: Abstraction has 1334 states and 1870 transitions. [2024-12-02 11:47:43,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:47:43,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 1870 transitions. [2024-12-02 11:47:43,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-12-02 11:47:43,187 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:47:43,188 INFO L218 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:47:43,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 11:47:43,188 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:47:43,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:43,188 INFO L85 PathProgramCache]: Analyzing trace with hash -425034007, now seen corresponding path program 1 times [2024-12-02 11:47:43,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:47:43,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865400027] [2024-12-02 11:47:43,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:43,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:47:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:50,111 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-12-02 11:47:50,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2024-12-02 11:47:50,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 11:47:50,113 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.postprocessInterpolant(NestedInterpolantsBuilder.java:472) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.buildPredicates(NestedInterpolantsBuilder.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:292) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:227) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 58 more [2024-12-02 11:47:50,118 INFO L158 Benchmark]: Toolchain (without parser) took 830365.52ms. Allocated memory was 117.4MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 92.0MB in the beginning and 694.1MB in the end (delta: -602.1MB). Peak memory consumption was 822.1MB. Max. memory is 16.1GB. [2024-12-02 11:47:50,119 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:47:50,119 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.52ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 75.9MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 11:47:50,119 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.09ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 72.6MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:47:50,119 INFO L158 Benchmark]: Boogie Preprocessor took 59.98ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 68.1MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:47:50,120 INFO L158 Benchmark]: RCFGBuilder took 603.96ms. Allocated memory is still 117.4MB. Free memory was 68.1MB in the beginning and 42.4MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 11:47:50,120 INFO L158 Benchmark]: TraceAbstraction took 829266.78ms. Allocated memory was 117.4MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 41.9MB in the beginning and 694.1MB in the end (delta: -652.2MB). Peak memory consumption was 771.8MB. Max. memory is 16.1GB. [2024-12-02 11:47:50,121 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 368.52ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 75.9MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.09ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 72.6MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.98ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 68.1MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 603.96ms. Allocated memory is still 117.4MB. Free memory was 68.1MB in the beginning and 42.4MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 829266.78ms. Allocated memory was 117.4MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 41.9MB in the beginning and 694.1MB in the end (delta: -652.2MB). Peak memory consumption was 771.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-45.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e3c6b69598e12a8964c97c957d1e8ad33abec465af98c95276a8354401884a2e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:47:52,281 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:47:52,380 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 11:47:52,387 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:47:52,388 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:47:52,416 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:47:52,417 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:47:52,417 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:47:52,418 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:47:52,418 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:47:52,418 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:47:52,418 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:47:52,419 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:47:52,419 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:47:52,419 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:47:52,419 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:47:52,419 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:47:52,420 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:47:52,420 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:47:52,420 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:47:52,420 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:47:52,420 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:47:52,420 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:47:52,420 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 11:47:52,420 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 11:47:52,420 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 11:47:52,421 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:47:52,421 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:47:52,421 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:47:52,421 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:47:52,421 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:47:52,421 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:47:52,421 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:47:52,421 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:47:52,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:47:52,422 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:47:52,422 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:47:52,422 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:47:52,422 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:47:52,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:47:52,422 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:47:52,422 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:47:52,422 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:47:52,422 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:47:52,423 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 11:47:52,423 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 11:47:52,423 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:47:52,423 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:47:52,423 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:47:52,423 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:47:52,423 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_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3c6b69598e12a8964c97c957d1e8ad33abec465af98c95276a8354401884a2e [2024-12-02 11:47:52,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:47:52,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:47:52,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:47:52,698 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:47:52,699 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:47:52,700 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-45.i [2024-12-02 11:47:56,031 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/data/20ffd70ef/0892e1cf3f00451fa43038a8eabb1f66/FLAG9bd30f577 [2024-12-02 11:47:56,253 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:47:56,254 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-45.i [2024-12-02 11:47:56,265 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/data/20ffd70ef/0892e1cf3f00451fa43038a8eabb1f66/FLAG9bd30f577 [2024-12-02 11:47:56,592 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/data/20ffd70ef/0892e1cf3f00451fa43038a8eabb1f66 [2024-12-02 11:47:56,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:47:56,595 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:47:56,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:47:56,597 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:47:56,602 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:47:56,603 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:47:56" (1/1) ... [2024-12-02 11:47:56,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d37eaf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:56, skipping insertion in model container [2024-12-02 11:47:56,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:47:56" (1/1) ... [2024-12-02 11:47:56,625 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:47:56,773 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_533d2e15-e123-49f6-a75f-66d9fd996271/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-45.i[915,928] [2024-12-02 11:47:56,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:47:56,857 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:47:56,866 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_533d2e15-e123-49f6-a75f-66d9fd996271/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-45.i[915,928] [2024-12-02 11:47:56,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:47:56,931 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:47:56,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:56 WrapperNode [2024-12-02 11:47:56,932 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:47:56,933 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:47:56,933 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:47:56,933 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:47:56,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:56" (1/1) ... [2024-12-02 11:47:56,954 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:56" (1/1) ... [2024-12-02 11:47:56,980 INFO L138 Inliner]: procedures = 27, calls = 54, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 229 [2024-12-02 11:47:56,980 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:47:56,981 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:47:56,981 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:47:56,981 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:47:56,989 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:56" (1/1) ... [2024-12-02 11:47:56,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:56" (1/1) ... [2024-12-02 11:47:56,993 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:56" (1/1) ... [2024-12-02 11:47:57,005 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 11:47:57,005 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:56" (1/1) ... [2024-12-02 11:47:57,005 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:56" (1/1) ... [2024-12-02 11:47:57,017 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:56" (1/1) ... [2024-12-02 11:47:57,019 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:56" (1/1) ... [2024-12-02 11:47:57,023 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:56" (1/1) ... [2024-12-02 11:47:57,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:56" (1/1) ... [2024-12-02 11:47:57,028 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:56" (1/1) ... [2024-12-02 11:47:57,032 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:47:57,033 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:47:57,034 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:47:57,034 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:47:57,035 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:56" (1/1) ... [2024-12-02 11:47:57,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:47:57,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:47:57,067 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:47:57,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:47:57,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:47:57,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 11:47:57,097 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:47:57,097 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:47:57,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:47:57,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:47:57,203 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:47:57,206 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:47:58,594 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-12-02 11:47:58,594 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:47:58,606 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:47:58,607 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:47:58,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:47:58 BoogieIcfgContainer [2024-12-02 11:47:58,607 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:47:58,609 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:47:58,610 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:47:58,615 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:47:58,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:47:56" (1/3) ... [2024-12-02 11:47:58,616 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32501094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:47:58, skipping insertion in model container [2024-12-02 11:47:58,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:56" (2/3) ... [2024-12-02 11:47:58,616 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32501094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:47:58, skipping insertion in model container [2024-12-02 11:47:58,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:47:58" (3/3) ... [2024-12-02 11:47:58,617 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-45.i [2024-12-02 11:47:58,634 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:47:58,637 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-45.i that has 2 procedures, 107 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:47:58,692 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:47:58,705 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;@42dec5eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:47:58,706 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:47:58,710 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 63 states have (on average 1.380952380952381) internal successors, (87), 64 states have internal predecessors, (87), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-12-02 11:47:58,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-12-02 11:47:58,724 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:47:58,725 INFO L218 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:47:58,725 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:47:58,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:58,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1194115112, now seen corresponding path program 1 times [2024-12-02 11:47:58,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:47:58,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [69390077] [2024-12-02 11:47:58,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:58,742 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:47:58,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:47:58,744 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:47:58,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-12-02 11:47:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:59,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:47:59,191 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:47:59,252 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 1004 proven. 0 refuted. 0 times theorem prover too weak. 2276 trivial. 0 not checked. [2024-12-02 11:47:59,252 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:47:59,253 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:47:59,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [69390077] [2024-12-02 11:47:59,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [69390077] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:47:59,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:47:59,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:47:59,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296013010] [2024-12-02 11:47:59,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:47:59,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:47:59,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:47:59,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:47:59,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:47:59,283 INFO L87 Difference]: Start difference. First operand has 107 states, 63 states have (on average 1.380952380952381) internal successors, (87), 64 states have internal predecessors, (87), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2024-12-02 11:47:59,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:47:59,324 INFO L93 Difference]: Finished difference Result 207 states and 373 transitions. [2024-12-02 11:47:59,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:47:59,326 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 255 [2024-12-02 11:47:59,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:47:59,335 INFO L225 Difference]: With dead ends: 207 [2024-12-02 11:47:59,335 INFO L226 Difference]: Without dead ends: 103 [2024-12-02 11:47:59,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:47:59,342 INFO L435 NwaCegarLoop]: 162 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, 162 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:47:59,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:47:59,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-12-02 11:47:59,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-12-02 11:47:59,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 60 states have internal predecessors, (80), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-12-02 11:47:59,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 162 transitions. [2024-12-02 11:47:59,389 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 162 transitions. Word has length 255 [2024-12-02 11:47:59,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:47:59,389 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 162 transitions. [2024-12-02 11:47:59,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2024-12-02 11:47:59,390 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 162 transitions. [2024-12-02 11:47:59,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-12-02 11:47:59,395 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:47:59,395 INFO L218 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:47:59,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 11:47:59,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:47:59,596 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:47:59,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:59,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1199267662, now seen corresponding path program 1 times [2024-12-02 11:47:59,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:47:59,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975706001] [2024-12-02 11:47:59,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:59,599 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:47:59,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:47:59,601 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:47:59,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-12-02 11:47:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:59,979 INFO L256 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:47:59,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:48:00,038 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-12-02 11:48:00,038 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:48:00,038 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:48:00,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1975706001] [2024-12-02 11:48:00,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1975706001] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:48:00,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:48:00,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:48:00,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948155736] [2024-12-02 11:48:00,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:48:00,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:48:00,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:48:00,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:48:00,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:48:00,043 INFO L87 Difference]: Start difference. First operand 103 states and 162 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:48:00,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:48:00,116 INFO L93 Difference]: Finished difference Result 260 states and 409 transitions. [2024-12-02 11:48:00,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:48:00,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 255 [2024-12-02 11:48:00,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:48:00,120 INFO L225 Difference]: With dead ends: 260 [2024-12-02 11:48:00,120 INFO L226 Difference]: Without dead ends: 160 [2024-12-02 11:48:00,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:48:00,122 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 91 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:48:00,123 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 346 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:48:00,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-12-02 11:48:00,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 157. [2024-12-02 11:48:00,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 97 states have (on average 1.3711340206185567) internal successors, (133), 98 states have internal predecessors, (133), 57 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2024-12-02 11:48:00,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 247 transitions. [2024-12-02 11:48:00,151 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 247 transitions. Word has length 255 [2024-12-02 11:48:00,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:48:00,153 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 247 transitions. [2024-12-02 11:48:00,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:48:00,153 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 247 transitions. [2024-12-02 11:48:00,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-12-02 11:48:00,158 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:48:00,158 INFO L218 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:48:00,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 11:48:00,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:48:00,359 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:48:00,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:48:00,359 INFO L85 PathProgramCache]: Analyzing trace with hash -980412944, now seen corresponding path program 1 times [2024-12-02 11:48:00,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:48:00,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [510032661] [2024-12-02 11:48:00,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:48:00,360 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:48:00,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:48:00,362 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:48:00,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-12-02 11:48:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:48:00,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 11:48:00,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:48:01,350 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 1524 proven. 78 refuted. 0 times theorem prover too weak. 1678 trivial. 0 not checked. [2024-12-02 11:48:01,351 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:48:01,931 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 42 proven. 78 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2024-12-02 11:48:01,932 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:48:01,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [510032661] [2024-12-02 11:48:01,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [510032661] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:48:01,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 11:48:01,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2024-12-02 11:48:01,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870695054] [2024-12-02 11:48:01,932 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 11:48:01,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:48:01,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:48:01,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:48:01,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:48:01,936 INFO L87 Difference]: Start difference. First operand 157 states and 247 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 2 states have call successors, (67), 2 states have call predecessors, (67), 4 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2024-12-02 11:48:02,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:48:02,807 INFO L93 Difference]: Finished difference Result 321 states and 497 transitions. [2024-12-02 11:48:02,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:48:02,808 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 2 states have call successors, (67), 2 states have call predecessors, (67), 4 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 255 [2024-12-02 11:48:02,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:48:02,813 INFO L225 Difference]: With dead ends: 321 [2024-12-02 11:48:02,813 INFO L226 Difference]: Without dead ends: 167 [2024-12-02 11:48:02,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 501 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:48:02,815 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 234 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:48:02,816 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 244 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 11:48:02,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-12-02 11:48:02,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 163. [2024-12-02 11:48:02,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 101 states have (on average 1.2772277227722773) internal successors, (129), 102 states have internal predecessors, (129), 57 states have call successors, (57), 4 states have call predecessors, (57), 4 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2024-12-02 11:48:02,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 243 transitions. [2024-12-02 11:48:02,856 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 243 transitions. Word has length 255 [2024-12-02 11:48:02,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:48:02,857 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 243 transitions. [2024-12-02 11:48:02,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 2 states have call successors, (67), 2 states have call predecessors, (67), 4 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2024-12-02 11:48:02,857 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 243 transitions. [2024-12-02 11:48:02,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-12-02 11:48:02,860 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:48:02,860 INFO L218 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:48:02,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-12-02 11:48:03,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:48:03,061 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:48:03,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:48:03,061 INFO L85 PathProgramCache]: Analyzing trace with hash -733518231, now seen corresponding path program 1 times [2024-12-02 11:48:03,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:48:03,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030931857] [2024-12-02 11:48:03,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:48:03,063 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:48:03,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:48:03,065 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:48:03,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-12-02 11:48:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:48:03,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:48:03,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:48:03,471 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-12-02 11:48:03,472 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:48:03,472 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:48:03,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030931857] [2024-12-02 11:48:03,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1030931857] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:48:03,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:48:03,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:48:03,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395823137] [2024-12-02 11:48:03,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:48:03,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:48:03,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:48:03,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:48:03,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:48:03,474 INFO L87 Difference]: Start difference. First operand 163 states and 243 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:48:03,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:48:03,567 INFO L93 Difference]: Finished difference Result 323 states and 483 transitions. [2024-12-02 11:48:03,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:48:03,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 256 [2024-12-02 11:48:03,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:48:03,577 INFO L225 Difference]: With dead ends: 323 [2024-12-02 11:48:03,577 INFO L226 Difference]: Without dead ends: 163 [2024-12-02 11:48:03,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:48:03,579 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:48:03,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 306 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:48:03,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-12-02 11:48:03,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2024-12-02 11:48:03,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 101 states have (on average 1.2574257425742574) internal successors, (127), 102 states have internal predecessors, (127), 57 states have call successors, (57), 4 states have call predecessors, (57), 4 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2024-12-02 11:48:03,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 241 transitions. [2024-12-02 11:48:03,614 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 241 transitions. Word has length 256 [2024-12-02 11:48:03,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:48:03,615 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 241 transitions. [2024-12-02 11:48:03,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-12-02 11:48:03,616 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 241 transitions. [2024-12-02 11:48:03,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-12-02 11:48:03,617 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:48:03,617 INFO L218 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:48:03,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-12-02 11:48:03,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:48:03,818 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:48:03,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:48:03,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1500712377, now seen corresponding path program 1 times [2024-12-02 11:48:03,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:48:03,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [419502476] [2024-12-02 11:48:03,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:48:03,819 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:48:03,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:48:03,821 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:48:03,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_533d2e15-e123-49f6-a75f-66d9fd996271/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-12-02 11:48:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:48:04,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 11:48:04,316 INFO L279 TraceCheckSpWp]: Computing forward predicates...