./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.11.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc3a4ee-7313-4956-9e79-062788dcb1b4/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc3a4ee-7313-4956-9e79-062788dcb1b4/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc3a4ee-7313-4956-9e79-062788dcb1b4/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc3a4ee-7313-4956-9e79-062788dcb1b4/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.11.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc3a4ee-7313-4956-9e79-062788dcb1b4/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc3a4ee-7313-4956-9e79-062788dcb1b4/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c748b455b85e8e0d3f42bb7ec9994b8706853b8413212fc1d08f459460f9e58b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:59:47,544 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:59:47,662 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc3a4ee-7313-4956-9e79-062788dcb1b4/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:59:47,671 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:59:47,672 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:59:47,717 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:59:47,719 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:59:47,719 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:59:47,720 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:59:47,720 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:59:47,721 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:59:47,721 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:59:47,722 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:59:47,722 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:59:47,722 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:59:47,722 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:59:47,722 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:59:47,722 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:59:47,722 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:59:47,722 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:59:47,722 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:59:47,723 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:59:47,723 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:59:47,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:59:47,725 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:59:47,725 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:59:47,725 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:59:47,725 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:59:47,726 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:59:47,726 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:59:47,727 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:59:47,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:59:47,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:59:47,727 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:59:47,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:59:47,727 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:59:47,728 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:59:47,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:59:47,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:59:47,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:59:47,728 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:59:47,728 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:59:47,728 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:59:47,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:59:47,729 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:59:47,729 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:59:47,729 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:59:47,729 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:59:47,729 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_cdc3a4ee-7313-4956-9e79-062788dcb1b4/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c748b455b85e8e0d3f42bb7ec9994b8706853b8413212fc1d08f459460f9e58b [2024-11-24 01:59:48,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:59:48,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:59:48,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:59:48,087 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:59:48,087 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:59:48,089 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc3a4ee-7313-4956-9e79-062788dcb1b4/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.11.cil-2.c [2024-11-24 01:59:51,739 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc3a4ee-7313-4956-9e79-062788dcb1b4/bin/uautomizer-verify-LYvppIcaGC/data/f9f4ba7b1/32ede69ab0554be9be9566e17d157037/FLAG1d1d0b2c6 [2024-11-24 01:59:52,553 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:59:52,555 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc3a4ee-7313-4956-9e79-062788dcb1b4/sv-benchmarks/c/combinations/Problem05_label46+token_ring.11.cil-2.c [2024-11-24 01:59:52,607 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc3a4ee-7313-4956-9e79-062788dcb1b4/bin/uautomizer-verify-LYvppIcaGC/data/f9f4ba7b1/32ede69ab0554be9be9566e17d157037/FLAG1d1d0b2c6 [2024-11-24 01:59:52,630 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc3a4ee-7313-4956-9e79-062788dcb1b4/bin/uautomizer-verify-LYvppIcaGC/data/f9f4ba7b1/32ede69ab0554be9be9566e17d157037 [2024-11-24 01:59:52,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:59:52,635 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:59:52,636 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:59:52,637 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:59:52,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:59:52,646 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:59:52" (1/1) ... [2024-11-24 01:59:52,648 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b9fa36f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:52, skipping insertion in model container [2024-11-24 01:59:52,649 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:59:52" (1/1) ... [2024-11-24 01:59:52,857 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:59:55,154 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_cdc3a4ee-7313-4956-9e79-062788dcb1b4/sv-benchmarks/c/combinations/Problem05_label46+token_ring.11.cil-2.c[382357,382370] [2024-11-24 01:59:55,222 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_cdc3a4ee-7313-4956-9e79-062788dcb1b4/sv-benchmarks/c/combinations/Problem05_label46+token_ring.11.cil-2.c[383339,383352] [2024-11-24 01:59:55,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:59:55,744 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:59:57,041 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_cdc3a4ee-7313-4956-9e79-062788dcb1b4/sv-benchmarks/c/combinations/Problem05_label46+token_ring.11.cil-2.c[382357,382370] [2024-11-24 01:59:57,045 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_cdc3a4ee-7313-4956-9e79-062788dcb1b4/sv-benchmarks/c/combinations/Problem05_label46+token_ring.11.cil-2.c[383339,383352] [2024-11-24 01:59:57,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:59:57,162 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:59:57,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:57 WrapperNode [2024-11-24 01:59:57,163 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:59:57,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:59:57,165 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:59:57,165 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:59:57,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:57" (1/1) ... [2024-11-24 01:59:57,268 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:57" (1/1) ... [2024-11-24 01:59:57,807 INFO L138 Inliner]: procedures = 66, calls = 74, calls flagged for inlining = 44, calls inlined = 44, statements flattened = 13158 [2024-11-24 01:59:57,808 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:59:57,809 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:59:57,809 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:59:57,810 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:59:57,823 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:57" (1/1) ... [2024-11-24 01:59:57,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:57" (1/1) ... [2024-11-24 01:59:57,878 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:57" (1/1) ... [2024-11-24 01:59:58,016 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 01:59:58,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:57" (1/1) ... [2024-11-24 01:59:58,017 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:57" (1/1) ... [2024-11-24 01:59:58,326 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:57" (1/1) ... [2024-11-24 01:59:58,342 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:57" (1/1) ... [2024-11-24 01:59:58,419 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:57" (1/1) ... [2024-11-24 01:59:58,448 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:57" (1/1) ... [2024-11-24 01:59:58,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:57" (1/1) ... [2024-11-24 01:59:58,566 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:59:58,569 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:59:58,570 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:59:58,570 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:59:58,571 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:57" (1/1) ... [2024-11-24 01:59:58,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:59:58,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc3a4ee-7313-4956-9e79-062788dcb1b4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:59:58,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc3a4ee-7313-4956-9e79-062788dcb1b4/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:59:58,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc3a4ee-7313-4956-9e79-062788dcb1b4/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:59:58,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:59:58,664 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-24 01:59:58,664 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-24 01:59:58,664 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-24 01:59:58,664 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-24 01:59:58,664 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-24 01:59:58,664 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-24 01:59:58,664 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-24 01:59:58,665 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-24 01:59:58,665 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-24 01:59:58,665 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-24 01:59:58,666 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-24 01:59:58,666 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-24 01:59:58,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:59:58,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:59:58,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:59:58,929 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:59:58,932 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:00:13,880 INFO L? ?]: Removed 1749 outVars from TransFormulas that were not future-live. [2024-11-24 02:00:13,881 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:00:13,995 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:00:13,996 INFO L312 CfgBuilder]: Removed 30 assume(true) statements. [2024-11-24 02:00:13,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:00:13 BoogieIcfgContainer [2024-11-24 02:00:13,997 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:00:14,001 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 02:00:14,001 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 02:00:14,012 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 02:00:14,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:59:52" (1/3) ... [2024-11-24 02:00:14,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6090cf72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:00:14, skipping insertion in model container [2024-11-24 02:00:14,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:57" (2/3) ... [2024-11-24 02:00:14,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6090cf72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:00:14, skipping insertion in model container [2024-11-24 02:00:14,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:00:13" (3/3) ... [2024-11-24 02:00:14,016 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.11.cil-2.c [2024-11-24 02:00:14,045 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 02:00:14,050 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label46+token_ring.11.cil-2.c that has 7 procedures, 2538 locations, 1 initial locations, 15 loop locations, and 2 error locations. [2024-11-24 02:00:14,375 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:00:14,397 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;@75fef23e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:00:14,398 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 02:00:14,420 INFO L276 IsEmpty]: Start isEmpty. Operand has 2538 states, 2505 states have (on average 1.844311377245509) internal successors, (4620), 2507 states have internal predecessors, (4620), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 02:00:14,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 02:00:14,454 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:14,456 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:14,457 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:14,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:14,467 INFO L85 PathProgramCache]: Analyzing trace with hash -21151577, now seen corresponding path program 1 times [2024-11-24 02:00:14,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:14,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75289508] [2024-11-24 02:00:14,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:14,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:15,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:15,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:15,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75289508] [2024-11-24 02:00:15,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75289508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:15,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:15,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:00:15,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960497329] [2024-11-24 02:00:15,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:15,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:00:15,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:15,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:00:15,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:15,371 INFO L87 Difference]: Start difference. First operand has 2538 states, 2505 states have (on average 1.844311377245509) internal successors, (4620), 2507 states have internal predecessors, (4620), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:00:15,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:15,750 INFO L93 Difference]: Finished difference Result 5064 states and 9317 transitions. [2024-11-24 02:00:15,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:00:15,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 165 [2024-11-24 02:00:15,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:15,807 INFO L225 Difference]: With dead ends: 5064 [2024-11-24 02:00:15,807 INFO L226 Difference]: Without dead ends: 2471 [2024-11-24 02:00:15,826 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:15,831 INFO L435 NwaCegarLoop]: 4577 mSDtfsCounter, 544 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 8599 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:15,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 8599 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:00:15,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2024-11-24 02:00:16,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2471. [2024-11-24 02:00:16,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2471 states, 2438 states have (on average 1.8289581624282198) internal successors, (4459), 2440 states have internal predecessors, (4459), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 02:00:16,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2471 states to 2471 states and 4509 transitions. [2024-11-24 02:00:16,060 INFO L78 Accepts]: Start accepts. Automaton has 2471 states and 4509 transitions. Word has length 165 [2024-11-24 02:00:16,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:16,062 INFO L471 AbstractCegarLoop]: Abstraction has 2471 states and 4509 transitions. [2024-11-24 02:00:16,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:00:16,063 INFO L276 IsEmpty]: Start isEmpty. Operand 2471 states and 4509 transitions. [2024-11-24 02:00:16,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 02:00:16,069 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:16,069 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:16,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 02:00:16,070 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:16,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:16,071 INFO L85 PathProgramCache]: Analyzing trace with hash 902015849, now seen corresponding path program 1 times [2024-11-24 02:00:16,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:16,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204943648] [2024-11-24 02:00:16,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:16,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:16,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:16,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:16,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204943648] [2024-11-24 02:00:16,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204943648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:16,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:16,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:00:16,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059574661] [2024-11-24 02:00:16,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:16,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:00:16,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:16,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:00:16,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:00:16,707 INFO L87 Difference]: Start difference. First operand 2471 states and 4509 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:00:18,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:18,147 INFO L93 Difference]: Finished difference Result 3177 states and 5637 transitions. [2024-11-24 02:00:18,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 02:00:18,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 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 165 [2024-11-24 02:00:18,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:18,173 INFO L225 Difference]: With dead ends: 3177 [2024-11-24 02:00:18,173 INFO L226 Difference]: Without dead ends: 2846 [2024-11-24 02:00:18,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:00:18,179 INFO L435 NwaCegarLoop]: 4385 mSDtfsCounter, 5021 mSDsluCounter, 9004 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5040 SdHoareTripleChecker+Valid, 13389 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:18,179 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5040 Valid, 13389 Invalid, 645 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [54 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 02:00:18,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2024-11-24 02:00:18,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2819. [2024-11-24 02:00:18,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 2759 states have (on average 1.802102210945995) internal successors, (4972), 2762 states have internal predecessors, (4972), 45 states have call successors, (45), 12 states have call predecessors, (45), 13 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2024-11-24 02:00:18,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 5063 transitions. [2024-11-24 02:00:18,352 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 5063 transitions. Word has length 165 [2024-11-24 02:00:18,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:18,353 INFO L471 AbstractCegarLoop]: Abstraction has 2819 states and 5063 transitions. [2024-11-24 02:00:18,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:00:18,354 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 5063 transitions. [2024-11-24 02:00:18,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 02:00:18,361 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:18,361 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:18,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 02:00:18,362 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:18,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:18,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1752217069, now seen corresponding path program 1 times [2024-11-24 02:00:18,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:18,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861845262] [2024-11-24 02:00:18,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:18,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:18,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:18,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:18,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861845262] [2024-11-24 02:00:18,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861845262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:18,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:18,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 02:00:18,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155878884] [2024-11-24 02:00:18,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:18,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 02:00:18,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:18,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 02:00:18,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:00:18,984 INFO L87 Difference]: Start difference. First operand 2819 states and 5063 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:00:20,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:20,657 INFO L93 Difference]: Finished difference Result 3944 states and 6878 transitions. [2024-11-24 02:00:20,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 02:00:20,660 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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 165 [2024-11-24 02:00:20,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:20,680 INFO L225 Difference]: With dead ends: 3944 [2024-11-24 02:00:20,680 INFO L226 Difference]: Without dead ends: 3265 [2024-11-24 02:00:20,684 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 [2024-11-24 02:00:20,684 INFO L435 NwaCegarLoop]: 4677 mSDtfsCounter, 5029 mSDsluCounter, 14076 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5048 SdHoareTripleChecker+Valid, 18753 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:20,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5048 Valid, 18753 Invalid, 1047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 02:00:20,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3265 states. [2024-11-24 02:00:20,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3265 to 3142. [2024-11-24 02:00:20,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3142 states, 3055 states have (on average 1.779050736497545) internal successors, (5435), 3059 states have internal predecessors, (5435), 65 states have call successors, (65), 18 states have call predecessors, (65), 20 states have return successors, (69), 66 states have call predecessors, (69), 65 states have call successors, (69) [2024-11-24 02:00:20,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3142 states to 3142 states and 5569 transitions. [2024-11-24 02:00:20,816 INFO L78 Accepts]: Start accepts. Automaton has 3142 states and 5569 transitions. Word has length 165 [2024-11-24 02:00:20,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:20,817 INFO L471 AbstractCegarLoop]: Abstraction has 3142 states and 5569 transitions. [2024-11-24 02:00:20,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:00:20,817 INFO L276 IsEmpty]: Start isEmpty. Operand 3142 states and 5569 transitions. [2024-11-24 02:00:20,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 02:00:20,820 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:20,820 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:20,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 02:00:20,821 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:20,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:20,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1211787563, now seen corresponding path program 1 times [2024-11-24 02:00:20,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:20,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629936103] [2024-11-24 02:00:20,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:20,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:20,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:21,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:21,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:21,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629936103] [2024-11-24 02:00:21,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629936103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:21,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:21,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 02:00:21,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630014565] [2024-11-24 02:00:21,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:21,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 02:00:21,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:21,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 02:00:21,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:00:21,162 INFO L87 Difference]: Start difference. First operand 3142 states and 5569 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:00:22,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:22,808 INFO L93 Difference]: Finished difference Result 4977 states and 8523 transitions. [2024-11-24 02:00:22,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 02:00:22,810 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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 165 [2024-11-24 02:00:22,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:22,846 INFO L225 Difference]: With dead ends: 4977 [2024-11-24 02:00:22,847 INFO L226 Difference]: Without dead ends: 3975 [2024-11-24 02:00:22,855 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 [2024-11-24 02:00:22,857 INFO L435 NwaCegarLoop]: 4673 mSDtfsCounter, 5024 mSDsluCounter, 14064 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5043 SdHoareTripleChecker+Valid, 18737 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:22,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5043 Valid, 18737 Invalid, 1047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 02:00:22,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3975 states. [2024-11-24 02:00:23,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3975 to 3833. [2024-11-24 02:00:23,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3833 states, 3690 states have (on average 1.7463414634146341) internal successors, (6444), 3698 states have internal predecessors, (6444), 105 states have call successors, (105), 30 states have call predecessors, (105), 36 states have return successors, (121), 108 states have call predecessors, (121), 105 states have call successors, (121) [2024-11-24 02:00:23,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3833 states to 3833 states and 6670 transitions. [2024-11-24 02:00:23,090 INFO L78 Accepts]: Start accepts. Automaton has 3833 states and 6670 transitions. Word has length 165 [2024-11-24 02:00:23,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:23,091 INFO L471 AbstractCegarLoop]: Abstraction has 3833 states and 6670 transitions. [2024-11-24 02:00:23,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:00:23,092 INFO L276 IsEmpty]: Start isEmpty. Operand 3833 states and 6670 transitions. [2024-11-24 02:00:23,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 02:00:23,097 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:23,097 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:23,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 02:00:23,102 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:23,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:23,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1055807021, now seen corresponding path program 1 times [2024-11-24 02:00:23,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:23,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653114801] [2024-11-24 02:00:23,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:23,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:23,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:23,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:23,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653114801] [2024-11-24 02:00:23,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653114801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:23,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:23,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 02:00:23,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982211933] [2024-11-24 02:00:23,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:23,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 02:00:23,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:23,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 02:00:23,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:00:23,451 INFO L87 Difference]: Start difference. First operand 3833 states and 6670 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:00:25,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:25,184 INFO L93 Difference]: Finished difference Result 7218 states and 12166 transitions. [2024-11-24 02:00:25,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 02:00:25,185 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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 165 [2024-11-24 02:00:25,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:25,217 INFO L225 Difference]: With dead ends: 7218 [2024-11-24 02:00:25,217 INFO L226 Difference]: Without dead ends: 5525 [2024-11-24 02:00:25,224 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 [2024-11-24 02:00:25,226 INFO L435 NwaCegarLoop]: 4670 mSDtfsCounter, 5019 mSDsluCounter, 14055 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5038 SdHoareTripleChecker+Valid, 18725 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:25,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5038 Valid, 18725 Invalid, 1047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 02:00:25,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5525 states. [2024-11-24 02:00:25,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5525 to 5344. [2024-11-24 02:00:25,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5083 states have (on average 1.7115876450914813) internal successors, (8700), 5105 states have internal predecessors, (8700), 185 states have call successors, (185), 54 states have call predecessors, (185), 74 states have return successors, (249), 192 states have call predecessors, (249), 185 states have call successors, (249) [2024-11-24 02:00:25,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 9134 transitions. [2024-11-24 02:00:25,536 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 9134 transitions. Word has length 165 [2024-11-24 02:00:25,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:25,536 INFO L471 AbstractCegarLoop]: Abstraction has 5344 states and 9134 transitions. [2024-11-24 02:00:25,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:00:25,541 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 9134 transitions. [2024-11-24 02:00:25,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 02:00:25,553 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:25,553 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:25,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 02:00:25,554 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:25,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:25,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1466417387, now seen corresponding path program 1 times [2024-11-24 02:00:25,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:25,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849121459] [2024-11-24 02:00:25,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:25,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:25,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:25,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:25,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849121459] [2024-11-24 02:00:25,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849121459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:25,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:25,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 02:00:25,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265713908] [2024-11-24 02:00:25,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:25,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 02:00:25,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:25,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 02:00:25,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:00:25,854 INFO L87 Difference]: Start difference. First operand 5344 states and 9134 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:00:27,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:27,385 INFO L93 Difference]: Finished difference Result 12197 states and 20488 transitions. [2024-11-24 02:00:27,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 02:00:27,386 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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 165 [2024-11-24 02:00:27,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:27,444 INFO L225 Difference]: With dead ends: 12197 [2024-11-24 02:00:27,444 INFO L226 Difference]: Without dead ends: 8993 [2024-11-24 02:00:27,460 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 [2024-11-24 02:00:27,461 INFO L435 NwaCegarLoop]: 4667 mSDtfsCounter, 5014 mSDsluCounter, 14046 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5033 SdHoareTripleChecker+Valid, 18713 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:27,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5033 Valid, 18713 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 02:00:27,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8993 states. [2024-11-24 02:00:27,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8993 to 8735. [2024-11-24 02:00:27,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8735 states, 8220 states have (on average 1.6900243309002434) internal successors, (13892), 8288 states have internal predecessors, (13892), 345 states have call successors, (345), 102 states have call predecessors, (345), 168 states have return successors, (601), 360 states have call predecessors, (601), 345 states have call successors, (601) [2024-11-24 02:00:27,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8735 states to 8735 states and 14838 transitions. [2024-11-24 02:00:27,947 INFO L78 Accepts]: Start accepts. Automaton has 8735 states and 14838 transitions. Word has length 165 [2024-11-24 02:00:27,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:27,949 INFO L471 AbstractCegarLoop]: Abstraction has 8735 states and 14838 transitions. [2024-11-24 02:00:27,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:00:27,951 INFO L276 IsEmpty]: Start isEmpty. Operand 8735 states and 14838 transitions. [2024-11-24 02:00:27,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 02:00:27,959 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:27,959 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:27,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 02:00:27,960 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:27,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:27,960 INFO L85 PathProgramCache]: Analyzing trace with hash -321452435, now seen corresponding path program 1 times [2024-11-24 02:00:27,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:27,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455433931] [2024-11-24 02:00:27,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:27,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:28,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:28,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:28,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455433931] [2024-11-24 02:00:28,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455433931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:28,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:28,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 02:00:28,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905050338] [2024-11-24 02:00:28,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:28,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 02:00:28,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:28,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 02:00:28,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:00:28,378 INFO L87 Difference]: Start difference. First operand 8735 states and 14838 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:00:30,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:30,204 INFO L93 Difference]: Finished difference Result 23572 states and 40218 transitions. [2024-11-24 02:00:30,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 02:00:30,205 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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 165 [2024-11-24 02:00:30,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:30,324 INFO L225 Difference]: With dead ends: 23572 [2024-11-24 02:00:30,324 INFO L226 Difference]: Without dead ends: 16977 [2024-11-24 02:00:30,359 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 [2024-11-24 02:00:30,360 INFO L435 NwaCegarLoop]: 4664 mSDtfsCounter, 5009 mSDsluCounter, 14037 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5028 SdHoareTripleChecker+Valid, 18701 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:30,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5028 Valid, 18701 Invalid, 1047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 02:00:30,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16977 states. [2024-11-24 02:00:31,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16977 to 16570. [2024-11-24 02:00:31,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16570 states, 15493 states have (on average 1.6918608403795263) internal successors, (26212), 15707 states have internal predecessors, (26212), 665 states have call successors, (665), 198 states have call predecessors, (665), 410 states have return successors, (1689), 696 states have call predecessors, (1689), 665 states have call successors, (1689) [2024-11-24 02:00:31,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16570 states to 16570 states and 28566 transitions. [2024-11-24 02:00:31,578 INFO L78 Accepts]: Start accepts. Automaton has 16570 states and 28566 transitions. Word has length 165 [2024-11-24 02:00:31,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:31,579 INFO L471 AbstractCegarLoop]: Abstraction has 16570 states and 28566 transitions. [2024-11-24 02:00:31,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:00:31,580 INFO L276 IsEmpty]: Start isEmpty. Operand 16570 states and 28566 transitions. [2024-11-24 02:00:31,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 02:00:31,597 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:31,598 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:31,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 02:00:31,598 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:31,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:31,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1837631659, now seen corresponding path program 1 times [2024-11-24 02:00:31,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:31,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694928940] [2024-11-24 02:00:31,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:31,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:31,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:31,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:31,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:31,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694928940] [2024-11-24 02:00:31,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694928940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:31,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:31,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:00:31,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784866800] [2024-11-24 02:00:31,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:31,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:00:31,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:31,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:00:31,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:00:31,983 INFO L87 Difference]: Start difference. First operand 16570 states and 28566 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:00:33,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:33,580 INFO L93 Difference]: Finished difference Result 35410 states and 62319 transitions. [2024-11-24 02:00:33,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:00:33,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 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 165 [2024-11-24 02:00:33,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:33,700 INFO L225 Difference]: With dead ends: 35410 [2024-11-24 02:00:33,700 INFO L226 Difference]: Without dead ends: 20980 [2024-11-24 02:00:33,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:00:33,761 INFO L435 NwaCegarLoop]: 4362 mSDtfsCounter, 4703 mSDsluCounter, 8579 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4722 SdHoareTripleChecker+Valid, 12941 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:33,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4722 Valid, 12941 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 02:00:33,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20980 states. [2024-11-24 02:00:34,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20980 to 16570. [2024-11-24 02:00:34,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16570 states, 15493 states have (on average 1.6897308461886014) internal successors, (26179), 15707 states have internal predecessors, (26179), 665 states have call successors, (665), 198 states have call predecessors, (665), 410 states have return successors, (1689), 696 states have call predecessors, (1689), 665 states have call successors, (1689) [2024-11-24 02:00:34,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16570 states to 16570 states and 28533 transitions. [2024-11-24 02:00:34,813 INFO L78 Accepts]: Start accepts. Automaton has 16570 states and 28533 transitions. Word has length 165 [2024-11-24 02:00:34,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:34,814 INFO L471 AbstractCegarLoop]: Abstraction has 16570 states and 28533 transitions. [2024-11-24 02:00:34,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:00:34,815 INFO L276 IsEmpty]: Start isEmpty. Operand 16570 states and 28533 transitions. [2024-11-24 02:00:34,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 02:00:34,828 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:34,828 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:34,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 02:00:34,829 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:34,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:34,832 INFO L85 PathProgramCache]: Analyzing trace with hash -2039446935, now seen corresponding path program 1 times [2024-11-24 02:00:34,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:34,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329590617] [2024-11-24 02:00:34,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:34,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:35,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:35,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:35,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329590617] [2024-11-24 02:00:35,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329590617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:35,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:35,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 02:00:35,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284115541] [2024-11-24 02:00:35,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:35,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 02:00:35,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:35,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 02:00:35,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:00:35,181 INFO L87 Difference]: Start difference. First operand 16570 states and 28533 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:00:37,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:37,874 INFO L93 Difference]: Finished difference Result 49803 states and 87789 transitions. [2024-11-24 02:00:37,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 02:00:37,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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 165 [2024-11-24 02:00:37,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:38,034 INFO L225 Difference]: With dead ends: 49803 [2024-11-24 02:00:38,034 INFO L226 Difference]: Without dead ends: 35373 [2024-11-24 02:00:38,083 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 [2024-11-24 02:00:38,086 INFO L435 NwaCegarLoop]: 4652 mSDtfsCounter, 4993 mSDsluCounter, 14004 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5012 SdHoareTripleChecker+Valid, 18656 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:38,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5012 Valid, 18656 Invalid, 1047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 02:00:38,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35373 states. [2024-11-24 02:00:40,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35373 to 34751. [2024-11-24 02:00:40,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34751 states, 32388 states have (on average 1.7076386315919476) internal successors, (55307), 33056 states have internal predecessors, (55307), 1305 states have call successors, (1305), 390 states have call predecessors, (1305), 1056 states have return successors, (5401), 1368 states have call predecessors, (5401), 1305 states have call successors, (5401) [2024-11-24 02:00:40,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34751 states to 34751 states and 62013 transitions. [2024-11-24 02:00:40,665 INFO L78 Accepts]: Start accepts. Automaton has 34751 states and 62013 transitions. Word has length 165 [2024-11-24 02:00:40,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:40,666 INFO L471 AbstractCegarLoop]: Abstraction has 34751 states and 62013 transitions. [2024-11-24 02:00:40,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:00:40,666 INFO L276 IsEmpty]: Start isEmpty. Operand 34751 states and 62013 transitions. [2024-11-24 02:00:40,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 02:00:40,691 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:40,691 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:40,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 02:00:40,691 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:40,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:40,692 INFO L85 PathProgramCache]: Analyzing trace with hash -640493333, now seen corresponding path program 1 times [2024-11-24 02:00:40,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:40,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475813492] [2024-11-24 02:00:40,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:40,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:41,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:41,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:41,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475813492] [2024-11-24 02:00:41,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475813492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:41,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:41,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 02:00:41,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736339424] [2024-11-24 02:00:41,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:41,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 02:00:41,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:41,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 02:00:41,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:00:41,012 INFO L87 Difference]: Start difference. First operand 34751 states and 62013 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:00:45,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:45,437 INFO L93 Difference]: Finished difference Result 112356 states and 208903 transitions. [2024-11-24 02:00:45,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 02:00:45,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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 165 [2024-11-24 02:00:45,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:45,809 INFO L225 Difference]: With dead ends: 112356 [2024-11-24 02:00:45,810 INFO L226 Difference]: Without dead ends: 79745 [2024-11-24 02:00:45,918 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 [2024-11-24 02:00:45,920 INFO L435 NwaCegarLoop]: 4649 mSDtfsCounter, 4988 mSDsluCounter, 13995 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5007 SdHoareTripleChecker+Valid, 18644 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:45,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5007 Valid, 18644 Invalid, 1047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 02:00:45,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79745 states. [2024-11-24 02:00:50,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79745 to 78646. [2024-11-24 02:00:50,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78646 states, 73225 states have (on average 1.736278593376579) internal successors, (127139), 75287 states have internal predecessors, (127139), 2585 states have call successors, (2585), 774 states have call predecessors, (2585), 2834 states have return successors, (18969), 2712 states have call predecessors, (18969), 2585 states have call successors, (18969) [2024-11-24 02:00:51,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78646 states to 78646 states and 148693 transitions. [2024-11-24 02:00:51,026 INFO L78 Accepts]: Start accepts. Automaton has 78646 states and 148693 transitions. Word has length 165 [2024-11-24 02:00:51,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:51,026 INFO L471 AbstractCegarLoop]: Abstraction has 78646 states and 148693 transitions. [2024-11-24 02:00:51,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:00:51,027 INFO L276 IsEmpty]: Start isEmpty. Operand 78646 states and 148693 transitions. [2024-11-24 02:00:51,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 02:00:51,057 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:51,057 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:51,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 02:00:51,058 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:51,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:51,059 INFO L85 PathProgramCache]: Analyzing trace with hash 2037033513, now seen corresponding path program 1 times [2024-11-24 02:00:51,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:51,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618756247] [2024-11-24 02:00:51,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:51,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:51,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:51,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:51,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618756247] [2024-11-24 02:00:51,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618756247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:51,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:51,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 02:00:51,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329939422] [2024-11-24 02:00:51,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:51,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 02:00:51,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:51,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 02:00:51,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:00:51,320 INFO L87 Difference]: Start difference. First operand 78646 states and 148693 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:01:00,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:00,234 INFO L93 Difference]: Finished difference Result 266075 states and 533149 transitions. [2024-11-24 02:01:00,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 02:01:00,235 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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 165 [2024-11-24 02:01:00,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:01,789 INFO L225 Difference]: With dead ends: 266075 [2024-11-24 02:01:01,790 INFO L226 Difference]: Without dead ends: 189569 [2024-11-24 02:01:02,126 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 [2024-11-24 02:01:02,126 INFO L435 NwaCegarLoop]: 4646 mSDtfsCounter, 4983 mSDsluCounter, 13986 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5002 SdHoareTripleChecker+Valid, 18632 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:02,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5002 Valid, 18632 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 02:01:02,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189569 states. [2024-11-24 02:01:16,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189569 to 187577. [2024-11-24 02:01:16,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187577 states, 174582 states have (on average 1.767919945927988) internal successors, (308647), 180890 states have internal predecessors, (308647), 5145 states have call successors, (5145), 1542 states have call predecessors, (5145), 7848 states have return successors, (70681), 5400 states have call predecessors, (70681), 5145 states have call successors, (70681) [2024-11-24 02:01:18,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187577 states to 187577 states and 384473 transitions. [2024-11-24 02:01:18,421 INFO L78 Accepts]: Start accepts. Automaton has 187577 states and 384473 transitions. Word has length 165 [2024-11-24 02:01:18,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:18,425 INFO L471 AbstractCegarLoop]: Abstraction has 187577 states and 384473 transitions. [2024-11-24 02:01:18,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-24 02:01:18,427 INFO L276 IsEmpty]: Start isEmpty. Operand 187577 states and 384473 transitions. [2024-11-24 02:01:18,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 02:01:18,492 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:18,492 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:18,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 02:01:18,493 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:18,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:18,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1894467285, now seen corresponding path program 1 times [2024-11-24 02:01:18,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:18,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51938] [2024-11-24 02:01:18,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:18,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:18,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:01:18,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:18,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51938] [2024-11-24 02:01:18,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:18,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:18,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:01:18,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139037260] [2024-11-24 02:01:18,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:18,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:01:18,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:18,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:01:18,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:01:18,727 INFO L87 Difference]: Start difference. First operand 187577 states and 384473 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 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)