./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-2.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_8d52e15a-e9e7-4939-8163-c52e64076bc3/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d52e15a-e9e7-4939-8163-c52e64076bc3/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d52e15a-e9e7-4939-8163-c52e64076bc3/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d52e15a-e9e7-4939-8163-c52e64076bc3/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d52e15a-e9e7-4939-8163-c52e64076bc3/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d52e15a-e9e7-4939-8163-c52e64076bc3/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2dda75b6d46698b5258f612b82d0e93d324481eaa047be7e62672a619c582b4e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:24:20,859 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:24:20,916 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d52e15a-e9e7-4939-8163-c52e64076bc3/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:24:20,921 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:24:20,921 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:24:20,943 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:24:20,944 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:24:20,944 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:24:20,945 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:24:20,945 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:24:20,945 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:24:20,945 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:24:20,945 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:24:20,945 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:24:20,946 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:24:20,946 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:24:20,946 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:24:20,946 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:24:20,946 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:24:20,946 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:24:20,946 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:24:20,946 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:24:20,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:24:20,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:24:20,947 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:24:20,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:24:20,947 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:24:20,947 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:24:20,947 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:24:20,947 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:24:20,947 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:24:20,947 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:24:20,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:24:20,947 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:24:20,948 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:24:20,948 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:24:20,948 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:24:20,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:24:20,948 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:24:20,948 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:24:20,948 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:24:20,948 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:24:20,948 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:24:20,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:24:20,948 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:24:20,949 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:24:20,949 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:24:20,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:24:20,949 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_8d52e15a-e9e7-4939-8163-c52e64076bc3/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2dda75b6d46698b5258f612b82d0e93d324481eaa047be7e62672a619c582b4e [2024-12-02 11:24:21,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:24:21,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:24:21,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:24:21,195 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:24:21,196 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:24:21,197 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d52e15a-e9e7-4939-8163-c52e64076bc3/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-2.c [2024-12-02 11:24:23,825 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d52e15a-e9e7-4939-8163-c52e64076bc3/bin/uautomizer-verify-84ZbGMXZE1/data/2a03269a4/e19d1bc32c4045a8ad5d529eeebf6f2e/FLAG0994b0289 [2024-12-02 11:24:24,353 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:24:24,353 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d52e15a-e9e7-4939-8163-c52e64076bc3/sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-2.c [2024-12-02 11:24:24,403 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d52e15a-e9e7-4939-8163-c52e64076bc3/bin/uautomizer-verify-84ZbGMXZE1/data/2a03269a4/e19d1bc32c4045a8ad5d529eeebf6f2e/FLAG0994b0289 [2024-12-02 11:24:24,888 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d52e15a-e9e7-4939-8163-c52e64076bc3/bin/uautomizer-verify-84ZbGMXZE1/data/2a03269a4/e19d1bc32c4045a8ad5d529eeebf6f2e [2024-12-02 11:24:24,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:24:24,890 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:24:24,891 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:24:24,891 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:24:24,894 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:24:24,895 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:24:24" (1/1) ... [2024-12-02 11:24:24,895 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3934a4e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:24, skipping insertion in model container [2024-12-02 11:24:24,896 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:24:24" (1/1) ... [2024-12-02 11:24:25,046 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:24:26,365 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_8d52e15a-e9e7-4939-8163-c52e64076bc3/sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-2.c[382357,382370] [2024-12-02 11:24:26,393 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_8d52e15a-e9e7-4939-8163-c52e64076bc3/sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-2.c[383339,383352] [2024-12-02 11:24:26,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:24:26,593 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:24:27,318 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_8d52e15a-e9e7-4939-8163-c52e64076bc3/sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-2.c[382357,382370] [2024-12-02 11:24:27,320 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_8d52e15a-e9e7-4939-8163-c52e64076bc3/sv-benchmarks/c/combinations/Problem05_label46+token_ring.06.cil-2.c[383339,383352] [2024-12-02 11:24:27,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:24:27,381 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:24:27,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:27 WrapperNode [2024-12-02 11:24:27,382 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:24:27,382 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:24:27,383 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:24:27,383 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:24:27,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:27" (1/1) ... [2024-12-02 11:24:27,443 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:27" (1/1) ... [2024-12-02 11:24:27,695 INFO L138 Inliner]: procedures = 56, calls = 59, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 12863 [2024-12-02 11:24:27,695 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:24:27,696 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:24:27,696 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:24:27,696 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:24:27,704 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:27" (1/1) ... [2024-12-02 11:24:27,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:27" (1/1) ... [2024-12-02 11:24:27,742 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:27" (1/1) ... [2024-12-02 11:24:27,805 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 11:24:27,805 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:27" (1/1) ... [2024-12-02 11:24:27,805 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:27" (1/1) ... [2024-12-02 11:24:28,026 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:27" (1/1) ... [2024-12-02 11:24:28,035 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:27" (1/1) ... [2024-12-02 11:24:28,130 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:27" (1/1) ... [2024-12-02 11:24:28,151 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:27" (1/1) ... [2024-12-02 11:24:28,167 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:27" (1/1) ... [2024-12-02 11:24:28,209 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:24:28,210 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:24:28,210 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:24:28,210 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:24:28,211 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:27" (1/1) ... [2024-12-02 11:24:28,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:24:28,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d52e15a-e9e7-4939-8163-c52e64076bc3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:24:28,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d52e15a-e9e7-4939-8163-c52e64076bc3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:24:28,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d52e15a-e9e7-4939-8163-c52e64076bc3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:24:28,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:24:28,269 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-12-02 11:24:28,269 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-12-02 11:24:28,269 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-12-02 11:24:28,269 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-12-02 11:24:28,270 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-12-02 11:24:28,270 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-12-02 11:24:28,270 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-12-02 11:24:28,270 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-12-02 11:24:28,270 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-12-02 11:24:28,270 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-12-02 11:24:28,270 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-12-02 11:24:28,270 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-12-02 11:24:28,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:24:28,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:24:28,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:24:28,376 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:24:28,377 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:24:35,977 INFO L? ?]: Removed 1719 outVars from TransFormulas that were not future-live. [2024-12-02 11:24:35,977 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:24:36,020 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:24:36,020 INFO L312 CfgBuilder]: Removed 20 assume(true) statements. [2024-12-02 11:24:36,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:24:36 BoogieIcfgContainer [2024-12-02 11:24:36,021 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:24:36,023 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:24:36,023 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:24:36,026 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:24:36,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:24:24" (1/3) ... [2024-12-02 11:24:36,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34a0fb7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:24:36, skipping insertion in model container [2024-12-02 11:24:36,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:27" (2/3) ... [2024-12-02 11:24:36,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34a0fb7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:24:36, skipping insertion in model container [2024-12-02 11:24:36,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:24:36" (3/3) ... [2024-12-02 11:24:36,029 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.06.cil-2.c [2024-12-02 11:24:36,042 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:24:36,044 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label46+token_ring.06.cil-2.c that has 7 procedures, 2413 locations, 1 initial locations, 10 loop locations, and 2 error locations. [2024-12-02 11:24:36,135 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:24:36,145 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;@467536f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:24:36,146 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 11:24:36,155 INFO L276 IsEmpty]: Start isEmpty. Operand has 2413 states, 2385 states have (on average 1.851153039832285) internal successors, (4415), 2387 states have internal predecessors, (4415), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 11:24:36,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:24:36,168 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:24:36,169 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:36,169 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:24:36,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:36,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1042476488, now seen corresponding path program 1 times [2024-12-02 11:24:36,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:24:36,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724507134] [2024-12-02 11:24:36,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:36,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:36,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:24:36,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:24:36,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724507134] [2024-12-02 11:24:36,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724507134] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:24:36,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:24:36,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:24:36,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260366497] [2024-12-02 11:24:36,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:24:36,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:24:36,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:24:36,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:24:36,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:24:36,514 INFO L87 Difference]: Start difference. First operand has 2413 states, 2385 states have (on average 1.851153039832285) internal successors, (4415), 2387 states have internal predecessors, (4415), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2024-12-02 11:24:36,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:36,685 INFO L93 Difference]: Finished difference Result 4816 states and 8891 transitions. [2024-12-02 11:24:36,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:24:36,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 110 [2024-12-02 11:24:36,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:24:36,709 INFO L225 Difference]: With dead ends: 4816 [2024-12-02 11:24:36,710 INFO L226 Difference]: Without dead ends: 2346 [2024-12-02 11:24:36,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:24:36,720 INFO L435 NwaCegarLoop]: 4372 mSDtfsCounter, 341 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 8394 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 [2024-12-02 11:24:36,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 8394 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:24:36,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2024-12-02 11:24:36,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 2346. [2024-12-02 11:24:36,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2346 states, 2318 states have (on average 1.8395168248490077) internal successors, (4264), 2320 states have internal predecessors, (4264), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 11:24:36,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2346 states to 2346 states and 4304 transitions. [2024-12-02 11:24:36,827 INFO L78 Accepts]: Start accepts. Automaton has 2346 states and 4304 transitions. Word has length 110 [2024-12-02 11:24:36,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:24:36,829 INFO L471 AbstractCegarLoop]: Abstraction has 2346 states and 4304 transitions. [2024-12-02 11:24:36,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2024-12-02 11:24:36,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2346 states and 4304 transitions. [2024-12-02 11:24:36,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:24:36,833 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:24:36,833 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:36,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:24:36,834 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:24:36,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:36,835 INFO L85 PathProgramCache]: Analyzing trace with hash -558594618, now seen corresponding path program 1 times [2024-12-02 11:24:36,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:24:36,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426140850] [2024-12-02 11:24:36,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:36,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:37,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:24:37,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:24:37,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426140850] [2024-12-02 11:24:37,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426140850] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:24:37,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:24:37,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:24:37,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817517446] [2024-12-02 11:24:37,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:24:37,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:24:37,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:24:37,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:24:37,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:24:37,162 INFO L87 Difference]: Start difference. First operand 2346 states and 4304 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-12-02 11:24:38,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:38,003 INFO L93 Difference]: Finished difference Result 2808 states and 5037 transitions. [2024-12-02 11:24:38,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:24:38,003 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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 110 [2024-12-02 11:24:38,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:24:38,017 INFO L225 Difference]: With dead ends: 2808 [2024-12-02 11:24:38,017 INFO L226 Difference]: Without dead ends: 2597 [2024-12-02 11:24:38,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:24:38,020 INFO L435 NwaCegarLoop]: 4406 mSDtfsCounter, 4594 mSDsluCounter, 13294 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4608 SdHoareTripleChecker+Valid, 17700 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:24:38,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4608 Valid, 17700 Invalid, 734 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 11:24:38,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2024-12-02 11:24:38,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 2567. [2024-12-02 11:24:38,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2567 states, 2514 states have (on average 1.819013524264121) internal successors, (4573), 2518 states have internal predecessors, (4573), 37 states have call successors, (37), 12 states have call predecessors, (37), 14 states have return successors, (44), 38 states have call predecessors, (44), 37 states have call successors, (44) [2024-12-02 11:24:38,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2567 states to 2567 states and 4654 transitions. [2024-12-02 11:24:38,102 INFO L78 Accepts]: Start accepts. Automaton has 2567 states and 4654 transitions. Word has length 110 [2024-12-02 11:24:38,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:24:38,102 INFO L471 AbstractCegarLoop]: Abstraction has 2567 states and 4654 transitions. [2024-12-02 11:24:38,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-12-02 11:24:38,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2567 states and 4654 transitions. [2024-12-02 11:24:38,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:24:38,105 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:24:38,105 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:38,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:24:38,105 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:24:38,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:38,106 INFO L85 PathProgramCache]: Analyzing trace with hash -587094908, now seen corresponding path program 1 times [2024-12-02 11:24:38,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:24:38,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678980051] [2024-12-02 11:24:38,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:38,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:38,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:24:38,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:24:38,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678980051] [2024-12-02 11:24:38,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678980051] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:24:38,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:24:38,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:24:38,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510064341] [2024-12-02 11:24:38,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:24:38,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:24:38,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:24:38,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:24:38,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:24:38,298 INFO L87 Difference]: Start difference. First operand 2567 states and 4654 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-12-02 11:24:39,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:39,020 INFO L93 Difference]: Finished difference Result 3470 states and 6086 transitions. [2024-12-02 11:24:39,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:24:39,021 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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 110 [2024-12-02 11:24:39,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:24:39,035 INFO L225 Difference]: With dead ends: 3470 [2024-12-02 11:24:39,035 INFO L226 Difference]: Without dead ends: 3040 [2024-12-02 11:24:39,037 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 [2024-12-02 11:24:39,038 INFO L435 NwaCegarLoop]: 4345 mSDtfsCounter, 4590 mSDsluCounter, 13142 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4604 SdHoareTripleChecker+Valid, 17487 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:24:39,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4604 Valid, 17487 Invalid, 690 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:24:39,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3040 states. [2024-12-02 11:24:39,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3040 to 2999. [2024-12-02 11:24:39,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2999 states, 2900 states have (on average 1.7855172413793103) internal successors, (5178), 2908 states have internal predecessors, (5178), 67 states have call successors, (67), 24 states have call predecessors, (67), 30 states have return successors, (90), 70 states have call predecessors, (90), 67 states have call successors, (90) [2024-12-02 11:24:39,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2999 states to 2999 states and 5335 transitions. [2024-12-02 11:24:39,140 INFO L78 Accepts]: Start accepts. Automaton has 2999 states and 5335 transitions. Word has length 110 [2024-12-02 11:24:39,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:24:39,140 INFO L471 AbstractCegarLoop]: Abstraction has 2999 states and 5335 transitions. [2024-12-02 11:24:39,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-12-02 11:24:39,141 INFO L276 IsEmpty]: Start isEmpty. Operand 2999 states and 5335 transitions. [2024-12-02 11:24:39,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:24:39,143 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:24:39,143 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:39,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:24:39,144 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:24:39,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:39,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1767290374, now seen corresponding path program 1 times [2024-12-02 11:24:39,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:24:39,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549038467] [2024-12-02 11:24:39,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:39,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:39,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:24:39,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:24:39,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549038467] [2024-12-02 11:24:39,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549038467] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:24:39,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:24:39,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:24:39,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569523375] [2024-12-02 11:24:39,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:24:39,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:24:39,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:24:39,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:24:39,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:24:39,358 INFO L87 Difference]: Start difference. First operand 2999 states and 5335 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-12-02 11:24:40,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:40,048 INFO L93 Difference]: Finished difference Result 4855 states and 8313 transitions. [2024-12-02 11:24:40,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:24:40,049 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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 110 [2024-12-02 11:24:40,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:24:40,067 INFO L225 Difference]: With dead ends: 4855 [2024-12-02 11:24:40,068 INFO L226 Difference]: Without dead ends: 3993 [2024-12-02 11:24:40,072 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 [2024-12-02 11:24:40,072 INFO L435 NwaCegarLoop]: 4398 mSDtfsCounter, 4584 mSDsluCounter, 13258 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4598 SdHoareTripleChecker+Valid, 17656 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:24:40,073 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4598 Valid, 17656 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:24:40,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3993 states. [2024-12-02 11:24:40,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3993 to 3931. [2024-12-02 11:24:40,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3931 states, 3734 states have (on average 1.741831815747188) internal successors, (6504), 3756 states have internal predecessors, (6504), 127 states have call successors, (127), 48 states have call predecessors, (127), 68 states have return successors, (206), 134 states have call predecessors, (206), 127 states have call successors, (206) [2024-12-02 11:24:40,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3931 states to 3931 states and 6837 transitions. [2024-12-02 11:24:40,227 INFO L78 Accepts]: Start accepts. Automaton has 3931 states and 6837 transitions. Word has length 110 [2024-12-02 11:24:40,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:24:40,227 INFO L471 AbstractCegarLoop]: Abstraction has 3931 states and 6837 transitions. [2024-12-02 11:24:40,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-12-02 11:24:40,227 INFO L276 IsEmpty]: Start isEmpty. Operand 3931 states and 6837 transitions. [2024-12-02 11:24:40,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:24:40,231 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:24:40,231 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:40,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:24:40,231 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:24:40,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:40,232 INFO L85 PathProgramCache]: Analyzing trace with hash -650613692, now seen corresponding path program 1 times [2024-12-02 11:24:40,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:24:40,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556841785] [2024-12-02 11:24:40,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:40,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:40,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:24:40,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:24:40,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556841785] [2024-12-02 11:24:40,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556841785] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:24:40,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:24:40,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:24:40,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943913579] [2024-12-02 11:24:40,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:24:40,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:24:40,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:24:40,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:24:40,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:24:40,378 INFO L87 Difference]: Start difference. First operand 3931 states and 6837 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-12-02 11:24:41,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:41,015 INFO L93 Difference]: Finished difference Result 7878 states and 13315 transitions. [2024-12-02 11:24:41,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:24:41,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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 110 [2024-12-02 11:24:41,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:24:41,035 INFO L225 Difference]: With dead ends: 7878 [2024-12-02 11:24:41,035 INFO L226 Difference]: Without dead ends: 6084 [2024-12-02 11:24:41,040 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 [2024-12-02 11:24:41,041 INFO L435 NwaCegarLoop]: 4396 mSDtfsCounter, 4579 mSDsluCounter, 13246 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4593 SdHoareTripleChecker+Valid, 17642 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:24:41,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4593 Valid, 17642 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:24:41,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6084 states. [2024-12-02 11:24:41,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6084 to 5983. [2024-12-02 11:24:41,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5983 states, 5572 states have (on average 1.7002871500358938) internal successors, (9474), 5640 states have internal predecessors, (9474), 247 states have call successors, (247), 96 states have call predecessors, (247), 162 states have return successors, (534), 262 states have call predecessors, (534), 247 states have call successors, (534) [2024-12-02 11:24:41,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5983 states to 5983 states and 10255 transitions. [2024-12-02 11:24:41,213 INFO L78 Accepts]: Start accepts. Automaton has 5983 states and 10255 transitions. Word has length 110 [2024-12-02 11:24:41,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:24:41,213 INFO L471 AbstractCegarLoop]: Abstraction has 5983 states and 10255 transitions. [2024-12-02 11:24:41,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-12-02 11:24:41,213 INFO L276 IsEmpty]: Start isEmpty. Operand 5983 states and 10255 transitions. [2024-12-02 11:24:41,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:24:41,216 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:24:41,217 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:41,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:24:41,217 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:24:41,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:41,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1421347258, now seen corresponding path program 1 times [2024-12-02 11:24:41,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:24:41,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930405216] [2024-12-02 11:24:41,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:41,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:41,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:24:41,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:24:41,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930405216] [2024-12-02 11:24:41,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930405216] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:24:41,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:24:41,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:24:41,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54964648] [2024-12-02 11:24:41,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:24:41,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:24:41,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:24:41,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:24:41,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:24:41,360 INFO L87 Difference]: Start difference. First operand 5983 states and 10255 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-12-02 11:24:42,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:42,186 INFO L93 Difference]: Finished difference Result 14617 states and 24957 transitions. [2024-12-02 11:24:42,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:24:42,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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 110 [2024-12-02 11:24:42,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:24:42,244 INFO L225 Difference]: With dead ends: 14617 [2024-12-02 11:24:42,244 INFO L226 Difference]: Without dead ends: 10771 [2024-12-02 11:24:42,262 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 [2024-12-02 11:24:42,262 INFO L435 NwaCegarLoop]: 4393 mSDtfsCounter, 4574 mSDsluCounter, 13233 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4588 SdHoareTripleChecker+Valid, 17626 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:24:42,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4588 Valid, 17626 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:24:42,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10771 states. [2024-12-02 11:24:42,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10771 to 10599. [2024-12-02 11:24:42,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10599 states, 9706 states have (on average 1.6760766536163199) internal successors, (16268), 9920 states have internal predecessors, (16268), 487 states have call successors, (487), 192 states have call predecessors, (487), 404 states have return successors, (1574), 518 states have call predecessors, (1574), 487 states have call successors, (1574) [2024-12-02 11:24:42,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10599 states to 10599 states and 18329 transitions. [2024-12-02 11:24:42,752 INFO L78 Accepts]: Start accepts. Automaton has 10599 states and 18329 transitions. Word has length 110 [2024-12-02 11:24:42,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:24:42,753 INFO L471 AbstractCegarLoop]: Abstraction has 10599 states and 18329 transitions. [2024-12-02 11:24:42,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-12-02 11:24:42,754 INFO L276 IsEmpty]: Start isEmpty. Operand 10599 states and 18329 transitions. [2024-12-02 11:24:42,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:24:42,763 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:24:42,763 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:42,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:24:42,763 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:24:42,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:42,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1878926340, now seen corresponding path program 1 times [2024-12-02 11:24:42,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:24:42,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213316406] [2024-12-02 11:24:42,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:42,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:42,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:42,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:24:42,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:24:42,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213316406] [2024-12-02 11:24:42,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213316406] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:24:42,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:24:42,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:24:42,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995417558] [2024-12-02 11:24:42,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:24:42,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:24:42,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:24:42,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:24:42,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:24:42,892 INFO L87 Difference]: Start difference. First operand 10599 states and 18329 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-12-02 11:24:43,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:43,907 INFO L93 Difference]: Finished difference Result 29968 states and 53235 transitions. [2024-12-02 11:24:43,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:24:43,907 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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 110 [2024-12-02 11:24:43,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:24:44,010 INFO L225 Difference]: With dead ends: 29968 [2024-12-02 11:24:44,010 INFO L226 Difference]: Without dead ends: 21506 [2024-12-02 11:24:44,042 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 [2024-12-02 11:24:44,043 INFO L435 NwaCegarLoop]: 4392 mSDtfsCounter, 4569 mSDsluCounter, 13222 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4583 SdHoareTripleChecker+Valid, 17614 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:24:44,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4583 Valid, 17614 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:24:44,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21506 states. [2024-12-02 11:24:44,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21506 to 21207. [2024-12-02 11:24:44,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21207 states, 19188 states have (on average 1.6732332707942463) internal successors, (32106), 19856 states have internal predecessors, (32106), 967 states have call successors, (967), 384 states have call predecessors, (967), 1050 states have return successors, (5190), 1030 states have call predecessors, (5190), 967 states have call successors, (5190) [2024-12-02 11:24:44,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21207 states to 21207 states and 38263 transitions. [2024-12-02 11:24:44,976 INFO L78 Accepts]: Start accepts. Automaton has 21207 states and 38263 transitions. Word has length 110 [2024-12-02 11:24:44,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:24:44,976 INFO L471 AbstractCegarLoop]: Abstraction has 21207 states and 38263 transitions. [2024-12-02 11:24:44,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-12-02 11:24:44,976 INFO L276 IsEmpty]: Start isEmpty. Operand 21207 states and 38263 transitions. [2024-12-02 11:24:44,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:24:44,992 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:24:44,992 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:44,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:24:44,992 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:24:44,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:44,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1292650118, now seen corresponding path program 1 times [2024-12-02 11:24:44,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:24:44,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592414124] [2024-12-02 11:24:44,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:44,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:45,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:24:45,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:24:45,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592414124] [2024-12-02 11:24:45,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592414124] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:24:45,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:24:45,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:24:45,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682901748] [2024-12-02 11:24:45,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:24:45,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:24:45,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:24:45,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:24:45,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:24:45,121 INFO L87 Difference]: Start difference. First operand 21207 states and 38263 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-12-02 11:24:46,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:46,620 INFO L93 Difference]: Finished difference Result 68667 states and 130002 transitions. [2024-12-02 11:24:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:24:46,620 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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 110 [2024-12-02 11:24:46,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:24:46,785 INFO L225 Difference]: With dead ends: 68667 [2024-12-02 11:24:46,785 INFO L226 Difference]: Without dead ends: 49597 [2024-12-02 11:24:46,837 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 [2024-12-02 11:24:46,838 INFO L435 NwaCegarLoop]: 4387 mSDtfsCounter, 4758 mSDsluCounter, 13198 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4779 SdHoareTripleChecker+Valid, 17585 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:24:46,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4779 Valid, 17585 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:24:46,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49597 states. [2024-12-02 11:24:49,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49597 to 45875. [2024-12-02 11:24:49,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45875 states, 41182 states have (on average 1.6864649604196007) internal successors, (69452), 43244 states have internal predecessors, (69452), 1863 states have call successors, (1863), 768 states have call predecessors, (1863), 2828 states have return successors, (18502), 1990 states have call predecessors, (18502), 1863 states have call successors, (18502) [2024-12-02 11:24:49,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45875 states to 45875 states and 89817 transitions. [2024-12-02 11:24:49,497 INFO L78 Accepts]: Start accepts. Automaton has 45875 states and 89817 transitions. Word has length 110 [2024-12-02 11:24:49,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:24:49,497 INFO L471 AbstractCegarLoop]: Abstraction has 45875 states and 89817 transitions. [2024-12-02 11:24:49,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-12-02 11:24:49,497 INFO L276 IsEmpty]: Start isEmpty. Operand 45875 states and 89817 transitions. [2024-12-02 11:24:49,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:24:49,518 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:24:49,518 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:49,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:24:49,518 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:24:49,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:49,519 INFO L85 PathProgramCache]: Analyzing trace with hash -665924668, now seen corresponding path program 1 times [2024-12-02 11:24:49,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:24:49,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942936052] [2024-12-02 11:24:49,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:49,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:49,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:24:49,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:24:49,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942936052] [2024-12-02 11:24:49,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942936052] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:24:49,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:24:49,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:24:49,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792684069] [2024-12-02 11:24:49,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:24:49,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:24:49,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:24:49,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:24:49,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:24:49,649 INFO L87 Difference]: Start difference. First operand 45875 states and 89817 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-12-02 11:24:53,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:53,090 INFO L93 Difference]: Finished difference Result 151431 states and 321874 transitions. [2024-12-02 11:24:53,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:24:53,091 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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 110 [2024-12-02 11:24:53,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:24:53,705 INFO L225 Difference]: With dead ends: 151431 [2024-12-02 11:24:53,705 INFO L226 Difference]: Without dead ends: 107693 [2024-12-02 11:24:53,881 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 [2024-12-02 11:24:53,882 INFO L435 NwaCegarLoop]: 4381 mSDtfsCounter, 4690 mSDsluCounter, 13172 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4711 SdHoareTripleChecker+Valid, 17553 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:24:53,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4711 Valid, 17553 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:24:53,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107693 states. [2024-12-02 11:24:59,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107693 to 102309. [2024-12-02 11:24:59,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102309 states, 90874 states have (on average 1.6963928076237427) internal successors, (154158), 97182 states have internal predecessors, (154158), 3591 states have call successors, (3591), 1536 states have call predecessors, (3591), 7842 states have return successors, (69638), 3846 states have call predecessors, (69638), 3591 states have call successors, (69638) [2024-12-02 11:24:59,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102309 states to 102309 states and 227387 transitions. [2024-12-02 11:24:59,955 INFO L78 Accepts]: Start accepts. Automaton has 102309 states and 227387 transitions. Word has length 110 [2024-12-02 11:24:59,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:24:59,955 INFO L471 AbstractCegarLoop]: Abstraction has 102309 states and 227387 transitions. [2024-12-02 11:24:59,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-12-02 11:24:59,956 INFO L276 IsEmpty]: Start isEmpty. Operand 102309 states and 227387 transitions. [2024-12-02 11:24:59,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:24:59,983 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:24:59,983 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:59,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:24:59,984 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:24:59,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:59,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1749911682, now seen corresponding path program 1 times [2024-12-02 11:24:59,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:24:59,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974802617] [2024-12-02 11:24:59,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:59,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:00,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:25:00,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:00,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974802617] [2024-12-02 11:25:00,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974802617] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:00,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:00,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:25:00,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535948360] [2024-12-02 11:25:00,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:00,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:25:00,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:00,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:25:00,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:25:00,109 INFO L87 Difference]: Start difference. First operand 102309 states and 227387 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-12-02 11:25:08,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:08,977 INFO L93 Difference]: Finished difference Result 343356 states and 863924 transitions. [2024-12-02 11:25:08,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:25:08,977 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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 110 [2024-12-02 11:25:08,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:10,557 INFO L225 Difference]: With dead ends: 343356 [2024-12-02 11:25:10,557 INFO L226 Difference]: Without dead ends: 243184 [2024-12-02 11:25:10,881 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 [2024-12-02 11:25:10,882 INFO L435 NwaCegarLoop]: 4345 mSDtfsCounter, 4657 mSDsluCounter, 13086 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4678 SdHoareTripleChecker+Valid, 17431 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:10,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4678 Valid, 17431 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 11:25:10,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243184 states. [2024-12-02 11:25:36,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243184 to 234473. [2024-12-02 11:25:37,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234473 states, 205308 states have (on average 1.7019502406141018) internal successors, (349424), 224482 states have internal predecessors, (349424), 6919 states have call successors, (6919), 3072 states have call predecessors, (6919), 22244 states have return successors, (270086), 7430 states have call predecessors, (270086), 6919 states have call successors, (270086) [2024-12-02 11:25:39,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234473 states to 234473 states and 626429 transitions. [2024-12-02 11:25:39,381 INFO L78 Accepts]: Start accepts. Automaton has 234473 states and 626429 transitions. Word has length 110 [2024-12-02 11:25:39,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:39,382 INFO L471 AbstractCegarLoop]: Abstraction has 234473 states and 626429 transitions. [2024-12-02 11:25:39,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-12-02 11:25:39,382 INFO L276 IsEmpty]: Start isEmpty. Operand 234473 states and 626429 transitions. [2024-12-02 11:25:39,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:25:39,432 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:39,432 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:39,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 11:25:39,433 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:39,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:39,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1220199420, now seen corresponding path program 1 times [2024-12-02 11:25:39,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:39,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794732040] [2024-12-02 11:25:39,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:39,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:39,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:25:39,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:39,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794732040] [2024-12-02 11:25:39,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794732040] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:39,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:39,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:25:39,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715683817] [2024-12-02 11:25:39,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:39,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:25:39,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:39,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:25:39,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:25:39,517 INFO L87 Difference]: Start difference. First operand 234473 states and 626429 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-12-02 11:26:02,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:26:02,243 INFO L93 Difference]: Finished difference Result 789613 states and 2513150 transitions. [2024-12-02 11:26:02,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:26:02,243 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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 110 [2024-12-02 11:26:02,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:26:07,356 INFO L225 Difference]: With dead ends: 789613 [2024-12-02 11:26:07,357 INFO L226 Difference]: Without dead ends: 557277 [2024-12-02 11:26:08,469 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 [2024-12-02 11:26:08,470 INFO L435 NwaCegarLoop]: 4379 mSDtfsCounter, 4569 mSDsluCounter, 13153 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4582 SdHoareTripleChecker+Valid, 17532 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:26:08,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4582 Valid, 17532 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:26:08,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557277 states. [2024-12-02 11:28:28,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557277 to 543959. [2024-12-02 11:28:29,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543959 states, 466468 states have (on average 1.6971667938636734) internal successors, (791674), 524496 states have internal predecessors, (791674), 13319 states have call successors, (13319), 6144 states have call predecessors, (13319), 64170 states have return successors, (1063942), 14342 states have call predecessors, (1063942), 13319 states have call successors, (1063942) [2024-12-02 11:28:36,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543959 states to 543959 states and 1868935 transitions. [2024-12-02 11:28:36,731 INFO L78 Accepts]: Start accepts. Automaton has 543959 states and 1868935 transitions. Word has length 110 [2024-12-02 11:28:36,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:28:36,732 INFO L471 AbstractCegarLoop]: Abstraction has 543959 states and 1868935 transitions. [2024-12-02 11:28:36,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-12-02 11:28:36,732 INFO L276 IsEmpty]: Start isEmpty. Operand 543959 states and 1868935 transitions. [2024-12-02 11:28:36,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 11:28:36,835 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:28:36,835 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:28:36,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 11:28:36,835 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:28:36,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:28:36,836 INFO L85 PathProgramCache]: Analyzing trace with hash 346558530, now seen corresponding path program 1 times [2024-12-02 11:28:36,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:28:36,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232706987] [2024-12-02 11:28:36,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:28:36,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:28:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:28:36,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:28:36,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:28:36,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232706987] [2024-12-02 11:28:36,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232706987] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:28:36,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:28:36,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:28:36,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447286731] [2024-12-02 11:28:36,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:28:36,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:28:36,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:28:36,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:28:36,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:28:36,914 INFO L87 Difference]: Start difference. First operand 543959 states and 1868935 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-12-02 11:29:21,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:29:21,674 INFO L93 Difference]: Finished difference Result 1262930 states and 4963710 transitions. [2024-12-02 11:29:21,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:29:21,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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 110 [2024-12-02 11:29:21,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:29:30,688 INFO L225 Difference]: With dead ends: 1262930 [2024-12-02 11:29:30,688 INFO L226 Difference]: Without dead ends: 721106 [2024-12-02 11:29:34,060 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 [2024-12-02 11:29:34,061 INFO L435 NwaCegarLoop]: 4192 mSDtfsCounter, 4401 mSDsluCounter, 8287 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4415 SdHoareTripleChecker+Valid, 12479 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:29:34,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4415 Valid, 12479 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:29:34,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721106 states.