./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label44+token_ring.04.cil-1.c --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_bf9aaaca-070c-405d-8c05-f06df9c91cf2/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9aaaca-070c-405d-8c05-f06df9c91cf2/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9aaaca-070c-405d-8c05-f06df9c91cf2/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9aaaca-070c-405d-8c05-f06df9c91cf2/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label44+token_ring.04.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9aaaca-070c-405d-8c05-f06df9c91cf2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9aaaca-070c-405d-8c05-f06df9c91cf2/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a41685cf358ec0b2e96e6f7dd9c345adfadc94b6fab0c764984a2fa5efe36e67 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:36:17,475 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:36:17,566 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9aaaca-070c-405d-8c05-f06df9c91cf2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:36:17,574 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:36:17,575 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:36:17,604 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:36:17,604 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:36:17,604 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:36:17,605 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:36:17,605 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:36:17,605 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:36:17,605 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:36:17,605 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:36:17,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:36:17,605 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:36:17,606 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:36:17,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:36:17,606 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:36:17,606 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:36:17,606 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:36:17,606 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:36:17,606 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:36:17,606 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:36:17,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:36:17,607 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:36:17,607 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:36:17,607 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:36:17,607 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:36:17,607 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:36:17,607 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:36:17,607 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:36:17,607 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:36:17,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:36:17,607 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:36:17,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:36:17,608 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:36:17,608 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:36:17,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:36:17,608 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:36:17,608 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:36:17,608 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:36:17,608 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:36:17,608 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:36:17,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:36:17,609 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:36:17,609 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:36:17,609 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:36:17,609 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:36:17,609 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_bf9aaaca-070c-405d-8c05-f06df9c91cf2/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a41685cf358ec0b2e96e6f7dd9c345adfadc94b6fab0c764984a2fa5efe36e67 [2024-11-28 04:36:17,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:36:17,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:36:17,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:36:17,921 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:36:17,921 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:36:17,923 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9aaaca-070c-405d-8c05-f06df9c91cf2/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/Problem05_label44+token_ring.04.cil-1.c [2024-11-28 04:36:20,943 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9aaaca-070c-405d-8c05-f06df9c91cf2/bin/uautomizer-verify-aQ6SnzHsRB/data/ca87fd713/b1032c2f0a6d410b825ccd40b9306716/FLAG66722ce1b [2024-11-28 04:36:21,814 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:36:21,815 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9aaaca-070c-405d-8c05-f06df9c91cf2/sv-benchmarks/c/combinations/Problem05_label44+token_ring.04.cil-1.c [2024-11-28 04:36:21,860 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9aaaca-070c-405d-8c05-f06df9c91cf2/bin/uautomizer-verify-aQ6SnzHsRB/data/ca87fd713/b1032c2f0a6d410b825ccd40b9306716/FLAG66722ce1b [2024-11-28 04:36:22,028 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9aaaca-070c-405d-8c05-f06df9c91cf2/bin/uautomizer-verify-aQ6SnzHsRB/data/ca87fd713/b1032c2f0a6d410b825ccd40b9306716 [2024-11-28 04:36:22,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:36:22,032 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:36:22,033 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:36:22,033 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:36:22,039 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:36:22,042 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:36:22" (1/1) ... [2024-11-28 04:36:22,043 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21fb54b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:22, skipping insertion in model container [2024-11-28 04:36:22,043 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:36:22" (1/1) ... [2024-11-28 04:36:22,249 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:36:24,234 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_bf9aaaca-070c-405d-8c05-f06df9c91cf2/sv-benchmarks/c/combinations/Problem05_label44+token_ring.04.cil-1.c[377340,377353] [2024-11-28 04:36:24,291 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_bf9aaaca-070c-405d-8c05-f06df9c91cf2/sv-benchmarks/c/combinations/Problem05_label44+token_ring.04.cil-1.c[383339,383352] [2024-11-28 04:36:24,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:36:24,544 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:36:25,715 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_bf9aaaca-070c-405d-8c05-f06df9c91cf2/sv-benchmarks/c/combinations/Problem05_label44+token_ring.04.cil-1.c[377340,377353] [2024-11-28 04:36:25,723 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_bf9aaaca-070c-405d-8c05-f06df9c91cf2/sv-benchmarks/c/combinations/Problem05_label44+token_ring.04.cil-1.c[383339,383352] [2024-11-28 04:36:25,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:36:25,795 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:36:25,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:25 WrapperNode [2024-11-28 04:36:25,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:36:25,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:36:25,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:36:25,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:36:25,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:25" (1/1) ... [2024-11-28 04:36:25,879 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:25" (1/1) ... [2024-11-28 04:36:26,293 INFO L138 Inliner]: procedures = 52, calls = 53, calls flagged for inlining = 30, calls inlined = 30, statements flattened = 12745 [2024-11-28 04:36:26,294 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:36:26,295 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:36:26,295 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:36:26,295 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:36:26,305 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:25" (1/1) ... [2024-11-28 04:36:26,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:25" (1/1) ... [2024-11-28 04:36:26,342 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:25" (1/1) ... [2024-11-28 04:36:26,516 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:36:26,516 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:25" (1/1) ... [2024-11-28 04:36:26,516 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:25" (1/1) ... [2024-11-28 04:36:26,713 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:25" (1/1) ... [2024-11-28 04:36:26,731 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:25" (1/1) ... [2024-11-28 04:36:26,822 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:25" (1/1) ... [2024-11-28 04:36:26,850 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:25" (1/1) ... [2024-11-28 04:36:26,931 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:25" (1/1) ... [2024-11-28 04:36:26,976 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:36:26,978 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:36:26,979 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:36:26,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:36:26,980 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:25" (1/1) ... [2024-11-28 04:36:26,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:36:27,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9aaaca-070c-405d-8c05-f06df9c91cf2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:27,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9aaaca-070c-405d-8c05-f06df9c91cf2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:36:27,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9aaaca-070c-405d-8c05-f06df9c91cf2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:36:27,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:36:27,046 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-28 04:36:27,046 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-28 04:36:27,046 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-28 04:36:27,046 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-28 04:36:27,047 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-28 04:36:27,047 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-28 04:36:27,047 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-28 04:36:27,047 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-28 04:36:27,047 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-28 04:36:27,047 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-28 04:36:27,047 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-28 04:36:27,047 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-28 04:36:27,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:36:27,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:36:27,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:36:27,189 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:36:27,191 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:36:38,225 INFO L? ?]: Removed 1707 outVars from TransFormulas that were not future-live. [2024-11-28 04:36:38,226 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:36:38,305 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:36:38,306 INFO L312 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-28 04:36:38,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:36:38 BoogieIcfgContainer [2024-11-28 04:36:38,306 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:36:38,309 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:36:38,309 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:36:38,314 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:36:38,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:36:22" (1/3) ... [2024-11-28 04:36:38,315 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d8d3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:36:38, skipping insertion in model container [2024-11-28 04:36:38,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:25" (2/3) ... [2024-11-28 04:36:38,315 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d8d3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:36:38, skipping insertion in model container [2024-11-28 04:36:38,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:36:38" (3/3) ... [2024-11-28 04:36:38,316 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label44+token_ring.04.cil-1.c [2024-11-28 04:36:38,332 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:36:38,336 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label44+token_ring.04.cil-1.c that has 7 procedures, 2363 locations, 1 initial locations, 8 loop locations, and 2 error locations. [2024-11-28 04:36:38,449 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:36:38,463 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;@4c5f3d05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:36:38,464 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 04:36:38,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 2363 states, 2337 states have (on average 1.8540864356011981) internal successors, (4333), 2339 states have internal predecessors, (4333), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:36:38,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 04:36:38,490 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:38,490 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:38,491 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:38,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:38,498 INFO L85 PathProgramCache]: Analyzing trace with hash -998948813, now seen corresponding path program 1 times [2024-11-28 04:36:38,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:38,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989415687] [2024-11-28 04:36:38,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:38,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:38,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:36:38,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:38,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989415687] [2024-11-28 04:36:38,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989415687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:38,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:38,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:36:38,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862452231] [2024-11-28 04:36:38,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:38,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:36:38,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:38,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:36:38,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:36:38,957 INFO L87 Difference]: Start difference. First operand has 2363 states, 2337 states have (on average 1.8540864356011981) internal successors, (4333), 2339 states have internal predecessors, (4333), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:36:39,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:39,212 INFO L93 Difference]: Finished difference Result 4720 states and 8727 transitions. [2024-11-28 04:36:39,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:36:39,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-28 04:36:39,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:39,244 INFO L225 Difference]: With dead ends: 4720 [2024-11-28 04:36:39,244 INFO L226 Difference]: Without dead ends: 2296 [2024-11-28 04:36:39,254 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:36:39,262 INFO L435 NwaCegarLoop]: 4290 mSDtfsCounter, 263 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 8312 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:39,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 8312 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:36:39,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2296 states. [2024-11-28 04:36:39,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2296 to 2296. [2024-11-28 04:36:39,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2296 states, 2270 states have (on average 1.8440528634361233) internal successors, (4186), 2272 states have internal predecessors, (4186), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:36:39,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2296 states to 2296 states and 4222 transitions. [2024-11-28 04:36:39,439 INFO L78 Accepts]: Start accepts. Automaton has 2296 states and 4222 transitions. Word has length 88 [2024-11-28 04:36:39,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:39,441 INFO L471 AbstractCegarLoop]: Abstraction has 2296 states and 4222 transitions. [2024-11-28 04:36:39,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:36:39,442 INFO L276 IsEmpty]: Start isEmpty. Operand 2296 states and 4222 transitions. [2024-11-28 04:36:39,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 04:36:39,450 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:39,450 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:39,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:36:39,451 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:39,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:39,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1239188559, now seen corresponding path program 1 times [2024-11-28 04:36:39,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:39,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849495932] [2024-11-28 04:36:39,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:39,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:39,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:36:39,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:39,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849495932] [2024-11-28 04:36:39,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849495932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:39,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:39,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:36:39,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174745067] [2024-11-28 04:36:39,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:39,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:36:39,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:39,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:36:39,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:36:39,774 INFO L87 Difference]: Start difference. First operand 2296 states and 4222 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:36:40,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:40,348 INFO L93 Difference]: Finished difference Result 2638 states and 4748 transitions. [2024-11-28 04:36:40,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:36:40,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-28 04:36:40,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:40,364 INFO L225 Difference]: With dead ends: 2638 [2024-11-28 04:36:40,364 INFO L226 Difference]: Without dead ends: 2475 [2024-11-28 04:36:40,367 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:36:40,368 INFO L435 NwaCegarLoop]: 4180 mSDtfsCounter, 4426 mSDsluCounter, 8454 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4438 SdHoareTripleChecker+Valid, 12634 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:40,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4438 Valid, 12634 Invalid, 344 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [40 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:36:40,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2475 states. [2024-11-28 04:36:40,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2475 to 2462. [2024-11-28 04:36:40,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2462 states, 2416 states have (on average 1.826158940397351) internal successors, (4412), 2419 states have internal predecessors, (4412), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-28 04:36:40,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2462 states to 2462 states and 4475 transitions. [2024-11-28 04:36:40,483 INFO L78 Accepts]: Start accepts. Automaton has 2462 states and 4475 transitions. Word has length 88 [2024-11-28 04:36:40,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:40,483 INFO L471 AbstractCegarLoop]: Abstraction has 2462 states and 4475 transitions. [2024-11-28 04:36:40,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:36:40,484 INFO L276 IsEmpty]: Start isEmpty. Operand 2462 states and 4475 transitions. [2024-11-28 04:36:40,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 04:36:40,489 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:40,489 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:40,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:36:40,489 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:40,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:40,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1227003083, now seen corresponding path program 1 times [2024-11-28 04:36:40,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:40,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464497131] [2024-11-28 04:36:40,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:40,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:40,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:36:40,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:40,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464497131] [2024-11-28 04:36:40,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464497131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:40,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:40,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:36:40,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936880910] [2024-11-28 04:36:40,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:40,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:36:40,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:40,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:36:40,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:36:40,738 INFO L87 Difference]: Start difference. First operand 2462 states and 4475 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:36:41,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:41,469 INFO L93 Difference]: Finished difference Result 2999 states and 5303 transitions. [2024-11-28 04:36:41,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:36:41,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-28 04:36:41,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:41,485 INFO L225 Difference]: With dead ends: 2999 [2024-11-28 04:36:41,485 INFO L226 Difference]: Without dead ends: 2670 [2024-11-28 04:36:41,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:36:41,489 INFO L435 NwaCegarLoop]: 4292 mSDtfsCounter, 4420 mSDsluCounter, 12858 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4432 SdHoareTripleChecker+Valid, 17150 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:41,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4432 Valid, 17150 Invalid, 578 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:36:41,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2670 states. [2024-11-28 04:36:41,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2670 to 2617. [2024-11-28 04:36:41,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2617 states, 2551 states have (on average 1.8094864758918072) internal successors, (4616), 2555 states have internal predecessors, (4616), 44 states have call successors, (44), 18 states have call predecessors, (44), 20 states have return successors, (48), 45 states have call predecessors, (48), 44 states have call successors, (48) [2024-11-28 04:36:41,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2617 states to 2617 states and 4708 transitions. [2024-11-28 04:36:41,600 INFO L78 Accepts]: Start accepts. Automaton has 2617 states and 4708 transitions. Word has length 88 [2024-11-28 04:36:41,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:41,600 INFO L471 AbstractCegarLoop]: Abstraction has 2617 states and 4708 transitions. [2024-11-28 04:36:41,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:36:41,601 INFO L276 IsEmpty]: Start isEmpty. Operand 2617 states and 4708 transitions. [2024-11-28 04:36:41,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 04:36:41,602 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:41,603 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:41,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:36:41,603 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:41,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:41,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1150102285, now seen corresponding path program 1 times [2024-11-28 04:36:41,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:41,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267350561] [2024-11-28 04:36:41,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:41,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:42,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:36:42,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:42,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267350561] [2024-11-28 04:36:42,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267350561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:42,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:42,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:36:42,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841522386] [2024-11-28 04:36:42,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:42,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:36:42,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:42,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:36:42,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:36:42,006 INFO L87 Difference]: Start difference. First operand 2617 states and 4708 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:36:42,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:42,677 INFO L93 Difference]: Finished difference Result 3486 states and 6045 transitions. [2024-11-28 04:36:42,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:36:42,678 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-28 04:36:42,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:42,696 INFO L225 Difference]: With dead ends: 3486 [2024-11-28 04:36:42,697 INFO L226 Difference]: Without dead ends: 3002 [2024-11-28 04:36:42,701 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:36:42,702 INFO L435 NwaCegarLoop]: 4171 mSDtfsCounter, 4431 mSDsluCounter, 12580 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4443 SdHoareTripleChecker+Valid, 16751 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:42,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4443 Valid, 16751 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:36:42,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3002 states. [2024-11-28 04:36:42,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3002 to 2944. [2024-11-28 04:36:42,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2944 states, 2836 states have (on average 1.7810296191819464) internal successors, (5051), 2844 states have internal predecessors, (5051), 70 states have call successors, (70), 30 states have call predecessors, (70), 36 states have return successors, (86), 73 states have call predecessors, (86), 70 states have call successors, (86) [2024-11-28 04:36:42,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 5207 transitions. [2024-11-28 04:36:42,830 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 5207 transitions. Word has length 88 [2024-11-28 04:36:42,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:42,830 INFO L471 AbstractCegarLoop]: Abstraction has 2944 states and 5207 transitions. [2024-11-28 04:36:42,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:36:42,830 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 5207 transitions. [2024-11-28 04:36:42,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 04:36:42,834 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:42,835 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:42,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:36:42,835 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:42,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:42,836 INFO L85 PathProgramCache]: Analyzing trace with hash -2117452939, now seen corresponding path program 1 times [2024-11-28 04:36:42,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:42,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867288745] [2024-11-28 04:36:42,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:42,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:43,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:36:43,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:43,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867288745] [2024-11-28 04:36:43,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867288745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:43,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:43,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:36:43,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786899684] [2024-11-28 04:36:43,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:43,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:36:43,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:43,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:36:43,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:36:43,050 INFO L87 Difference]: Start difference. First operand 2944 states and 5207 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:36:43,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:43,752 INFO L93 Difference]: Finished difference Result 4523 states and 7658 transitions. [2024-11-28 04:36:43,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:36:43,752 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-28 04:36:43,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:43,777 INFO L225 Difference]: With dead ends: 4523 [2024-11-28 04:36:43,777 INFO L226 Difference]: Without dead ends: 3712 [2024-11-28 04:36:43,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:36:43,782 INFO L435 NwaCegarLoop]: 4285 mSDtfsCounter, 4410 mSDsluCounter, 12837 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4422 SdHoareTripleChecker+Valid, 17122 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:43,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4422 Valid, 17122 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:36:43,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3712 states. [2024-11-28 04:36:43,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3712 to 3643. [2024-11-28 04:36:43,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3643 states, 3445 states have (on average 1.7390420899854862) internal successors, (5991), 3467 states have internal predecessors, (5991), 122 states have call successors, (122), 54 states have call predecessors, (122), 74 states have return successors, (186), 129 states have call predecessors, (186), 122 states have call successors, (186) [2024-11-28 04:36:43,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3643 states to 3643 states and 6299 transitions. [2024-11-28 04:36:43,953 INFO L78 Accepts]: Start accepts. Automaton has 3643 states and 6299 transitions. Word has length 88 [2024-11-28 04:36:43,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:43,953 INFO L471 AbstractCegarLoop]: Abstraction has 3643 states and 6299 transitions. [2024-11-28 04:36:43,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:36:43,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3643 states and 6299 transitions. [2024-11-28 04:36:43,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 04:36:43,956 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:43,956 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:43,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:36:43,956 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:43,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:43,957 INFO L85 PathProgramCache]: Analyzing trace with hash -208995149, now seen corresponding path program 1 times [2024-11-28 04:36:43,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:43,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68598391] [2024-11-28 04:36:43,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:43,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:44,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:36:44,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:44,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68598391] [2024-11-28 04:36:44,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68598391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:44,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:44,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:36:44,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935204358] [2024-11-28 04:36:44,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:44,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:36:44,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:44,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:36:44,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:36:44,117 INFO L87 Difference]: Start difference. First operand 3643 states and 6299 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:36:45,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:45,087 INFO L93 Difference]: Finished difference Result 6984 states and 11565 transitions. [2024-11-28 04:36:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:36:45,092 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-28 04:36:45,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:45,124 INFO L225 Difference]: With dead ends: 6984 [2024-11-28 04:36:45,124 INFO L226 Difference]: Without dead ends: 5474 [2024-11-28 04:36:45,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:36:45,130 INFO L435 NwaCegarLoop]: 4276 mSDtfsCounter, 4536 mSDsluCounter, 12807 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4553 SdHoareTripleChecker+Valid, 17083 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:45,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4553 Valid, 17083 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:36:45,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5474 states. [2024-11-28 04:36:45,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5474 to 5107. [2024-11-28 04:36:45,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 4719 states have (on average 1.6904005085823268) internal successors, (7977), 4787 states have internal predecessors, (7977), 218 states have call successors, (218), 102 states have call predecessors, (218), 168 states have return successors, (474), 233 states have call predecessors, (474), 218 states have call successors, (474) [2024-11-28 04:36:45,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 8669 transitions. [2024-11-28 04:36:45,401 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 8669 transitions. Word has length 88 [2024-11-28 04:36:45,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:45,402 INFO L471 AbstractCegarLoop]: Abstraction has 5107 states and 8669 transitions. [2024-11-28 04:36:45,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:36:45,403 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 8669 transitions. [2024-11-28 04:36:45,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 04:36:45,408 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:45,409 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:45,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:36:45,410 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:45,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:45,410 INFO L85 PathProgramCache]: Analyzing trace with hash 744945009, now seen corresponding path program 1 times [2024-11-28 04:36:45,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:45,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747877857] [2024-11-28 04:36:45,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:45,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:45,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:36:45,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:45,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747877857] [2024-11-28 04:36:45,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747877857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:45,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:45,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:36:45,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817577364] [2024-11-28 04:36:45,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:45,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:36:45,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:45,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:36:45,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:36:45,572 INFO L87 Difference]: Start difference. First operand 5107 states and 8669 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:36:46,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:46,563 INFO L93 Difference]: Finished difference Result 11784 states and 19641 transitions. [2024-11-28 04:36:46,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:36:46,563 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-28 04:36:46,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:46,644 INFO L225 Difference]: With dead ends: 11784 [2024-11-28 04:36:46,645 INFO L226 Difference]: Without dead ends: 8810 [2024-11-28 04:36:46,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:36:46,660 INFO L435 NwaCegarLoop]: 4272 mSDtfsCounter, 4429 mSDsluCounter, 12795 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4440 SdHoareTripleChecker+Valid, 17067 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:46,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4440 Valid, 17067 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:36:46,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8810 states. [2024-11-28 04:36:47,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8810 to 8190. [2024-11-28 04:36:47,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8190 states, 7376 states have (on average 1.6454718004338396) internal successors, (12137), 7590 states have internal predecessors, (12137), 402 states have call successors, (402), 198 states have call predecessors, (402), 410 states have return successors, (1426), 433 states have call predecessors, (1426), 402 states have call successors, (1426) [2024-11-28 04:36:47,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8190 states to 8190 states and 13965 transitions. [2024-11-28 04:36:47,209 INFO L78 Accepts]: Start accepts. Automaton has 8190 states and 13965 transitions. Word has length 88 [2024-11-28 04:36:47,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:47,209 INFO L471 AbstractCegarLoop]: Abstraction has 8190 states and 13965 transitions. [2024-11-28 04:36:47,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:36:47,211 INFO L276 IsEmpty]: Start isEmpty. Operand 8190 states and 13965 transitions. [2024-11-28 04:36:47,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 04:36:47,218 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:47,218 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:47,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:36:47,218 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:47,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:47,219 INFO L85 PathProgramCache]: Analyzing trace with hash -471208717, now seen corresponding path program 1 times [2024-11-28 04:36:47,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:47,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477213608] [2024-11-28 04:36:47,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:47,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:47,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:36:47,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:47,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477213608] [2024-11-28 04:36:47,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477213608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:47,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:47,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:36:47,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910541964] [2024-11-28 04:36:47,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:47,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:36:47,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:47,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:36:47,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:36:47,373 INFO L87 Difference]: Start difference. First operand 8190 states and 13965 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:36:48,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:48,882 INFO L93 Difference]: Finished difference Result 21853 states and 38083 transitions. [2024-11-28 04:36:48,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:36:48,883 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-28 04:36:48,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:48,985 INFO L225 Difference]: With dead ends: 21853 [2024-11-28 04:36:48,986 INFO L226 Difference]: Without dead ends: 15796 [2024-11-28 04:36:49,017 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:36:49,018 INFO L435 NwaCegarLoop]: 4270 mSDtfsCounter, 4466 mSDsluCounter, 12789 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4483 SdHoareTripleChecker+Valid, 17059 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:49,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4483 Valid, 17059 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:36:49,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15796 states. [2024-11-28 04:36:50,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15796 to 14939. [2024-11-28 04:36:50,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14939 states, 13127 states have (on average 1.612630456311419) internal successors, (21169), 13795 states have internal predecessors, (21169), 754 states have call successors, (754), 390 states have call predecessors, (754), 1056 states have return successors, (4850), 817 states have call predecessors, (4850), 754 states have call successors, (4850) [2024-11-28 04:36:50,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14939 states to 14939 states and 26773 transitions. [2024-11-28 04:36:50,120 INFO L78 Accepts]: Start accepts. Automaton has 14939 states and 26773 transitions. Word has length 88 [2024-11-28 04:36:50,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:50,121 INFO L471 AbstractCegarLoop]: Abstraction has 14939 states and 26773 transitions. [2024-11-28 04:36:50,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:36:50,121 INFO L276 IsEmpty]: Start isEmpty. Operand 14939 states and 26773 transitions. [2024-11-28 04:36:50,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 04:36:50,131 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:50,131 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:50,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:36:50,131 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:50,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:50,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1203176143, now seen corresponding path program 1 times [2024-11-28 04:36:50,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:50,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411247563] [2024-11-28 04:36:50,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:50,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:50,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:36:50,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:50,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411247563] [2024-11-28 04:36:50,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411247563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:50,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:50,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:36:50,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599711271] [2024-11-28 04:36:50,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:50,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:36:50,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:50,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:36:50,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:36:50,268 INFO L87 Difference]: Start difference. First operand 14939 states and 26773 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:36:52,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:52,016 INFO L93 Difference]: Finished difference Result 43536 states and 83937 transitions. [2024-11-28 04:36:52,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:36:52,017 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-28 04:36:52,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:52,218 INFO L225 Difference]: With dead ends: 43536 [2024-11-28 04:36:52,218 INFO L226 Difference]: Without dead ends: 30730 [2024-11-28 04:36:52,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:36:52,286 INFO L435 NwaCegarLoop]: 4267 mSDtfsCounter, 4431 mSDsluCounter, 12780 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4448 SdHoareTripleChecker+Valid, 17047 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:52,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4448 Valid, 17047 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:36:52,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30730 states. [2024-11-28 04:36:55,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30730 to 29556. [2024-11-28 04:36:55,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29556 states, 25294 states have (on average 1.5857120265675655) internal successors, (40109), 27356 states have internal predecessors, (40109), 1426 states have call successors, (1426), 774 states have call predecessors, (1426), 2834 states have return successors, (17810), 1553 states have call predecessors, (17810), 1426 states have call successors, (17810) [2024-11-28 04:36:55,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29556 states to 29556 states and 59345 transitions. [2024-11-28 04:36:55,268 INFO L78 Accepts]: Start accepts. Automaton has 29556 states and 59345 transitions. Word has length 88 [2024-11-28 04:36:55,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:55,268 INFO L471 AbstractCegarLoop]: Abstraction has 29556 states and 59345 transitions. [2024-11-28 04:36:55,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:36:55,271 INFO L276 IsEmpty]: Start isEmpty. Operand 29556 states and 59345 transitions. [2024-11-28 04:36:55,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 04:36:55,296 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:55,296 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:55,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:36:55,296 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:55,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:55,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1405611315, now seen corresponding path program 1 times [2024-11-28 04:36:55,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:55,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200384022] [2024-11-28 04:36:55,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:55,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:55,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:36:55,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:55,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200384022] [2024-11-28 04:36:55,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200384022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:55,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:55,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:36:55,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124319150] [2024-11-28 04:36:55,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:55,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:36:55,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:55,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:36:55,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:36:55,468 INFO L87 Difference]: Start difference. First operand 29556 states and 59345 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:36:59,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:59,396 INFO L93 Difference]: Finished difference Result 89467 states and 206023 transitions. [2024-11-28 04:36:59,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:36:59,397 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-28 04:36:59,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:59,959 INFO L225 Difference]: With dead ends: 89467 [2024-11-28 04:36:59,959 INFO L226 Difference]: Without dead ends: 62044 [2024-11-28 04:37:00,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:37:00,069 INFO L435 NwaCegarLoop]: 4262 mSDtfsCounter, 4385 mSDsluCounter, 12773 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4396 SdHoareTripleChecker+Valid, 17035 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:37:00,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4396 Valid, 17035 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:37:00,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62044 states. [2024-11-28 04:37:06,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62044 to 60761. [2024-11-28 04:37:06,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60761 states, 50221 states have (on average 1.5489337129885905) internal successors, (77789), 56529 states have internal predecessors, (77789), 2698 states have call successors, (2698), 1534 states have call predecessors, (2698), 7840 states have return successors, (68234), 2953 states have call predecessors, (68234), 2698 states have call successors, (68234) [2024-11-28 04:37:06,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60761 states to 60761 states and 148721 transitions. [2024-11-28 04:37:06,760 INFO L78 Accepts]: Start accepts. Automaton has 60761 states and 148721 transitions. Word has length 88 [2024-11-28 04:37:06,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:37:06,762 INFO L471 AbstractCegarLoop]: Abstraction has 60761 states and 148721 transitions. [2024-11-28 04:37:06,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:37:06,762 INFO L276 IsEmpty]: Start isEmpty. Operand 60761 states and 148721 transitions. [2024-11-28 04:37:06,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 04:37:06,800 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:06,800 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:06,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:37:06,801 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:37:06,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:06,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1351218417, now seen corresponding path program 1 times [2024-11-28 04:37:06,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:06,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281053493] [2024-11-28 04:37:06,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:06,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:06,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:37:06,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:06,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281053493] [2024-11-28 04:37:06,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281053493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:06,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:06,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:37:06,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100205244] [2024-11-28 04:37:06,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:06,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:37:06,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:06,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:37:06,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:37:06,881 INFO L87 Difference]: Start difference. First operand 60761 states and 148721 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)