./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label49+token_ring.12.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcf3cd7-7217-4df4-9949-e6f6cb915aba/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcf3cd7-7217-4df4-9949-e6f6cb915aba/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcf3cd7-7217-4df4-9949-e6f6cb915aba/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcf3cd7-7217-4df4-9949-e6f6cb915aba/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label49+token_ring.12.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcf3cd7-7217-4df4-9949-e6f6cb915aba/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcf3cd7-7217-4df4-9949-e6f6cb915aba/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad834a4fb5f4154353fe834bdf1b25d8394c06509e997c3a1b1b485e0c0b77f0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:41:06,999 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:41:07,061 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcf3cd7-7217-4df4-9949-e6f6cb915aba/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:41:07,066 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:41:07,066 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:41:07,092 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:41:07,093 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:41:07,093 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:41:07,093 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:41:07,093 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:41:07,093 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:41:07,093 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:41:07,094 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:41:07,094 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:41:07,094 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:41:07,094 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:41:07,094 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:41:07,094 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:41:07,094 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:41:07,094 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:41:07,095 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:41:07,095 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:41:07,095 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:41:07,095 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:41:07,095 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:41:07,095 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:41:07,095 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:41:07,095 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:41:07,098 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:41:07,098 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:41:07,099 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:41:07,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:41:07,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:41:07,099 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:41:07,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:41:07,100 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:41:07,100 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:41:07,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:41:07,100 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:41:07,100 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:41:07,100 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:41:07,100 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:41:07,100 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:41:07,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:41:07,101 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:41:07,101 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:41:07,101 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:41:07,101 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:41:07,101 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_4dcf3cd7-7217-4df4-9949-e6f6cb915aba/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad834a4fb5f4154353fe834bdf1b25d8394c06509e997c3a1b1b485e0c0b77f0 [2024-11-28 03:41:07,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:41:07,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:41:07,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:41:07,372 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:41:07,372 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:41:07,374 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcf3cd7-7217-4df4-9949-e6f6cb915aba/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/Problem05_label49+token_ring.12.cil-1.c [2024-11-28 03:41:10,388 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcf3cd7-7217-4df4-9949-e6f6cb915aba/bin/uautomizer-verify-aQ6SnzHsRB/data/ebda6d06d/18af7b1442924230a8992480d65bf3da/FLAG2d107750a [2024-11-28 03:41:11,129 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:41:11,129 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcf3cd7-7217-4df4-9949-e6f6cb915aba/sv-benchmarks/c/combinations/Problem05_label49+token_ring.12.cil-1.c [2024-11-28 03:41:11,193 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcf3cd7-7217-4df4-9949-e6f6cb915aba/bin/uautomizer-verify-aQ6SnzHsRB/data/ebda6d06d/18af7b1442924230a8992480d65bf3da/FLAG2d107750a [2024-11-28 03:41:11,443 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcf3cd7-7217-4df4-9949-e6f6cb915aba/bin/uautomizer-verify-aQ6SnzHsRB/data/ebda6d06d/18af7b1442924230a8992480d65bf3da [2024-11-28 03:41:11,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:41:11,447 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:41:11,449 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:41:11,449 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:41:11,454 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:41:11,455 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:41:11" (1/1) ... [2024-11-28 03:41:11,456 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a2dba92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:11, skipping insertion in model container [2024-11-28 03:41:11,456 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:41:11" (1/1) ... [2024-11-28 03:41:11,673 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:41:13,639 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_4dcf3cd7-7217-4df4-9949-e6f6cb915aba/sv-benchmarks/c/combinations/Problem05_label49+token_ring.12.cil-1.c[380593,380606] [2024-11-28 03:41:13,677 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_4dcf3cd7-7217-4df4-9949-e6f6cb915aba/sv-benchmarks/c/combinations/Problem05_label49+token_ring.12.cil-1.c[383339,383352] [2024-11-28 03:41:14,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:41:14,012 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:41:15,116 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_4dcf3cd7-7217-4df4-9949-e6f6cb915aba/sv-benchmarks/c/combinations/Problem05_label49+token_ring.12.cil-1.c[380593,380606] [2024-11-28 03:41:15,121 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_4dcf3cd7-7217-4df4-9949-e6f6cb915aba/sv-benchmarks/c/combinations/Problem05_label49+token_ring.12.cil-1.c[383339,383352] [2024-11-28 03:41:15,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:41:15,244 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:41:15,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:15 WrapperNode [2024-11-28 03:41:15,245 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:41:15,246 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:41:15,247 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:41:15,247 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:41:15,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:15" (1/1) ... [2024-11-28 03:41:15,367 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:15" (1/1) ... [2024-11-28 03:41:16,028 INFO L138 Inliner]: procedures = 68, calls = 78, calls flagged for inlining = 45, calls inlined = 45, statements flattened = 13223 [2024-11-28 03:41:16,029 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:41:16,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:41:16,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:41:16,030 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:41:16,040 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:15" (1/1) ... [2024-11-28 03:41:16,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:15" (1/1) ... [2024-11-28 03:41:16,152 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:15" (1/1) ... [2024-11-28 03:41:16,269 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:41:16,269 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:15" (1/1) ... [2024-11-28 03:41:16,270 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:15" (1/1) ... [2024-11-28 03:41:16,506 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:15" (1/1) ... [2024-11-28 03:41:16,526 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:15" (1/1) ... [2024-11-28 03:41:16,607 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:15" (1/1) ... [2024-11-28 03:41:16,659 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:15" (1/1) ... [2024-11-28 03:41:16,682 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:15" (1/1) ... [2024-11-28 03:41:16,747 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:41:16,750 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:41:16,751 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:41:16,752 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:41:16,753 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:15" (1/1) ... [2024-11-28 03:41:16,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:41:16,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcf3cd7-7217-4df4-9949-e6f6cb915aba/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:41:16,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcf3cd7-7217-4df4-9949-e6f6cb915aba/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:41:16,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcf3cd7-7217-4df4-9949-e6f6cb915aba/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:41:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:41:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-28 03:41:16,824 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-28 03:41:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-28 03:41:16,824 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-28 03:41:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-28 03:41:16,824 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-28 03:41:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-28 03:41:16,824 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-28 03:41:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-28 03:41:16,824 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-28 03:41:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-28 03:41:16,825 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-28 03:41:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-28 03:41:16,825 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-28 03:41:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:41:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:41:16,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:41:17,024 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:41:17,026 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:41:29,327 INFO L? ?]: Removed 1759 outVars from TransFormulas that were not future-live. [2024-11-28 03:41:29,328 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:41:29,414 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:41:29,417 INFO L312 CfgBuilder]: Removed 32 assume(true) statements. [2024-11-28 03:41:29,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:41:29 BoogieIcfgContainer [2024-11-28 03:41:29,418 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:41:29,423 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:41:29,423 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:41:29,432 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:41:29,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:41:11" (1/3) ... [2024-11-28 03:41:29,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e65a3af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:41:29, skipping insertion in model container [2024-11-28 03:41:29,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:15" (2/3) ... [2024-11-28 03:41:29,437 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e65a3af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:41:29, skipping insertion in model container [2024-11-28 03:41:29,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:41:29" (3/3) ... [2024-11-28 03:41:29,439 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.12.cil-1.c [2024-11-28 03:41:29,458 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:41:29,463 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label49+token_ring.12.cil-1.c that has 8 procedures, 2571 locations, 1 initial locations, 16 loop locations, and 2 error locations. [2024-11-28 03:41:29,624 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:41:29,641 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;@4bf83f55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:41:29,643 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 03:41:29,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 2571 states, 2534 states have (on average 1.8433307024467245) internal successors, (4671), 2538 states have internal predecessors, (4671), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-28 03:41:29,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 03:41:29,675 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:41:29,675 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:41:29,676 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:41:29,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:29,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1787690955, now seen corresponding path program 1 times [2024-11-28 03:41:29,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:41:29,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888189433] [2024-11-28 03:41:29,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:41:29,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:41:30,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:41:30,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:41:30,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888189433] [2024-11-28 03:41:30,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888189433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:30,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:41:30,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:41:30,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200208483] [2024-11-28 03:41:30,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:30,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:41:30,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:41:30,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:41:30,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:41:30,319 INFO L87 Difference]: Start difference. First operand has 2571 states, 2534 states have (on average 1.8433307024467245) internal successors, (4671), 2538 states have internal predecessors, (4671), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:41:30,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:41:30,622 INFO L93 Difference]: Finished difference Result 5135 states and 9443 transitions. [2024-11-28 03:41:30,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:41:30,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2024-11-28 03:41:30,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:41:30,662 INFO L225 Difference]: With dead ends: 5135 [2024-11-28 03:41:30,663 INFO L226 Difference]: Without dead ends: 2503 [2024-11-28 03:41:30,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:41:30,680 INFO L435 NwaCegarLoop]: 4630 mSDtfsCounter, 603 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 8652 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 [2024-11-28 03:41:30,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 8652 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:41:30,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2024-11-28 03:41:30,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 2503. [2024-11-28 03:41:30,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2503 states, 2467 states have (on average 1.8273206323469802) internal successors, (4508), 2470 states have internal predecessors, (4508), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 03:41:30,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2503 states to 2503 states and 4562 transitions. [2024-11-28 03:41:30,870 INFO L78 Accepts]: Start accepts. Automaton has 2503 states and 4562 transitions. Word has length 177 [2024-11-28 03:41:30,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:41:30,873 INFO L471 AbstractCegarLoop]: Abstraction has 2503 states and 4562 transitions. [2024-11-28 03:41:30,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:41:30,873 INFO L276 IsEmpty]: Start isEmpty. Operand 2503 states and 4562 transitions. [2024-11-28 03:41:30,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 03:41:30,889 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:41:30,890 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:41:30,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:41:30,890 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:41:30,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:30,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1097859465, now seen corresponding path program 1 times [2024-11-28 03:41:30,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:41:30,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612728379] [2024-11-28 03:41:30,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:41:30,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:41:31,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:41:31,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:41:31,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612728379] [2024-11-28 03:41:31,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612728379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:31,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:41:31,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:41:31,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251828397] [2024-11-28 03:41:31,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:31,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:41:31,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:41:31,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:41:31,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:41:31,159 INFO L87 Difference]: Start difference. First operand 2503 states and 4562 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:41:31,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:41:31,270 INFO L93 Difference]: Finished difference Result 2870 states and 5141 transitions. [2024-11-28 03:41:31,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:41:31,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2024-11-28 03:41:31,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:41:31,282 INFO L225 Difference]: With dead ends: 2870 [2024-11-28 03:41:31,282 INFO L226 Difference]: Without dead ends: 2503 [2024-11-28 03:41:31,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:41:31,287 INFO L435 NwaCegarLoop]: 4560 mSDtfsCounter, 589 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 8518 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:41:31,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 8518 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:41:31,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2024-11-28 03:41:31,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 2503. [2024-11-28 03:41:31,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2503 states, 2467 states have (on average 1.8269152817186867) internal successors, (4507), 2470 states have internal predecessors, (4507), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 03:41:31,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2503 states to 2503 states and 4561 transitions. [2024-11-28 03:41:31,375 INFO L78 Accepts]: Start accepts. Automaton has 2503 states and 4561 transitions. Word has length 177 [2024-11-28 03:41:31,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:41:31,375 INFO L471 AbstractCegarLoop]: Abstraction has 2503 states and 4561 transitions. [2024-11-28 03:41:31,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:41:31,376 INFO L276 IsEmpty]: Start isEmpty. Operand 2503 states and 4561 transitions. [2024-11-28 03:41:31,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 03:41:31,381 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:41:31,381 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:41:31,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:41:31,382 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:41:31,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:31,387 INFO L85 PathProgramCache]: Analyzing trace with hash -311861575, now seen corresponding path program 1 times [2024-11-28 03:41:31,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:41:31,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141049170] [2024-11-28 03:41:31,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:41:31,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:41:31,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:41:31,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:41:31,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141049170] [2024-11-28 03:41:31,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141049170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:31,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:41:31,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:41:31,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001036170] [2024-11-28 03:41:31,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:31,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:41:31,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:41:31,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:41:31,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:41:31,795 INFO L87 Difference]: Start difference. First operand 2503 states and 4561 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:41:32,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:41:32,821 INFO L93 Difference]: Finished difference Result 3275 states and 5799 transitions. [2024-11-28 03:41:32,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:41:32,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2024-11-28 03:41:32,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:41:32,837 INFO L225 Difference]: With dead ends: 3275 [2024-11-28 03:41:32,837 INFO L226 Difference]: Without dead ends: 2913 [2024-11-28 03:41:32,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:41:32,841 INFO L435 NwaCegarLoop]: 4427 mSDtfsCounter, 5119 mSDsluCounter, 9115 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5139 SdHoareTripleChecker+Valid, 13542 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:41:32,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5139 Valid, 13542 Invalid, 697 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:41:32,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2024-11-28 03:41:32,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 2882. [2024-11-28 03:41:32,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2882 states, 2818 states have (on average 1.7995031937544357) internal successors, (5071), 2822 states have internal predecessors, (5071), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2024-11-28 03:41:32,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2882 states to 2882 states and 5168 transitions. [2024-11-28 03:41:32,932 INFO L78 Accepts]: Start accepts. Automaton has 2882 states and 5168 transitions. Word has length 177 [2024-11-28 03:41:32,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:41:32,934 INFO L471 AbstractCegarLoop]: Abstraction has 2882 states and 5168 transitions. [2024-11-28 03:41:32,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:41:32,934 INFO L276 IsEmpty]: Start isEmpty. Operand 2882 states and 5168 transitions. [2024-11-28 03:41:32,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 03:41:32,937 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:41:32,937 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:41:32,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:41:32,937 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:41:32,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:32,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1322448821, now seen corresponding path program 1 times [2024-11-28 03:41:32,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:41:32,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43598093] [2024-11-28 03:41:32,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:41:32,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:41:33,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:41:33,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:41:33,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43598093] [2024-11-28 03:41:33,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43598093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:33,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:41:33,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:41:33,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114066554] [2024-11-28 03:41:33,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:33,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:41:33,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:41:33,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:41:33,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:41:33,337 INFO L87 Difference]: Start difference. First operand 2882 states and 5168 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:41:34,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:41:34,692 INFO L93 Difference]: Finished difference Result 4110 states and 7158 transitions. [2024-11-28 03:41:34,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:41:34,693 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2024-11-28 03:41:34,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:41:34,714 INFO L225 Difference]: With dead ends: 4110 [2024-11-28 03:41:34,714 INFO L226 Difference]: Without dead ends: 3369 [2024-11-28 03:41:34,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:41:34,720 INFO L435 NwaCegarLoop]: 4753 mSDtfsCounter, 5128 mSDsluCounter, 14312 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5148 SdHoareTripleChecker+Valid, 19065 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:41:34,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5148 Valid, 19065 Invalid, 1131 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:41:34,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3369 states. [2024-11-28 03:41:34,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3369 to 3234. [2024-11-28 03:41:34,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3234 states, 3142 states have (on average 1.776257161043921) internal successors, (5581), 3147 states have internal predecessors, (5581), 70 states have call successors, (70), 19 states have call predecessors, (70), 20 states have return successors, (72), 69 states have call predecessors, (72), 68 states have call successors, (72) [2024-11-28 03:41:34,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3234 states to 3234 states and 5723 transitions. [2024-11-28 03:41:34,843 INFO L78 Accepts]: Start accepts. Automaton has 3234 states and 5723 transitions. Word has length 177 [2024-11-28 03:41:34,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:41:34,844 INFO L471 AbstractCegarLoop]: Abstraction has 3234 states and 5723 transitions. [2024-11-28 03:41:34,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:41:34,844 INFO L276 IsEmpty]: Start isEmpty. Operand 3234 states and 5723 transitions. [2024-11-28 03:41:34,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 03:41:34,848 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:41:34,848 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:41:34,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:41:34,848 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:41:34,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:34,849 INFO L85 PathProgramCache]: Analyzing trace with hash -82742857, now seen corresponding path program 1 times [2024-11-28 03:41:34,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:41:34,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634387706] [2024-11-28 03:41:34,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:41:34,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:41:35,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:41:35,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:41:35,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634387706] [2024-11-28 03:41:35,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634387706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:35,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:41:35,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:41:35,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919506254] [2024-11-28 03:41:35,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:35,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:41:35,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:41:35,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:41:35,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:41:35,140 INFO L87 Difference]: Start difference. First operand 3234 states and 5723 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:41:36,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:41:36,362 INFO L93 Difference]: Finished difference Result 5236 states and 8962 transitions. [2024-11-28 03:41:36,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:41:36,363 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2024-11-28 03:41:36,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:41:36,382 INFO L225 Difference]: With dead ends: 5236 [2024-11-28 03:41:36,383 INFO L226 Difference]: Without dead ends: 4143 [2024-11-28 03:41:36,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:41:36,388 INFO L435 NwaCegarLoop]: 4469 mSDtfsCounter, 5156 mSDsluCounter, 13631 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5176 SdHoareTripleChecker+Valid, 18100 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:41:36,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5176 Valid, 18100 Invalid, 955 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:41:36,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4143 states. [2024-11-28 03:41:36,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4143 to 3987. [2024-11-28 03:41:36,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3987 states, 3837 states have (on average 1.744070888715142) internal successors, (6692), 3846 states have internal predecessors, (6692), 112 states have call successors, (112), 31 states have call predecessors, (112), 36 states have return successors, (126), 113 states have call predecessors, (126), 110 states have call successors, (126) [2024-11-28 03:41:36,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3987 states to 3987 states and 6930 transitions. [2024-11-28 03:41:36,534 INFO L78 Accepts]: Start accepts. Automaton has 3987 states and 6930 transitions. Word has length 177 [2024-11-28 03:41:36,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:41:36,534 INFO L471 AbstractCegarLoop]: Abstraction has 3987 states and 6930 transitions. [2024-11-28 03:41:36,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:41:36,535 INFO L276 IsEmpty]: Start isEmpty. Operand 3987 states and 6930 transitions. [2024-11-28 03:41:36,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 03:41:36,538 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:41:36,538 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:41:36,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:41:36,539 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:41:36,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:36,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1811591029, now seen corresponding path program 1 times [2024-11-28 03:41:36,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:41:36,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031582251] [2024-11-28 03:41:36,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:41:36,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:41:36,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:41:36,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:41:36,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031582251] [2024-11-28 03:41:36,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031582251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:36,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:41:36,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:41:36,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626367028] [2024-11-28 03:41:36,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:36,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:41:36,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:41:36,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:41:36,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:41:36,789 INFO L87 Difference]: Start difference. First operand 3987 states and 6930 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:41:38,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:41:38,084 INFO L93 Difference]: Finished difference Result 7679 states and 12955 transitions. [2024-11-28 03:41:38,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:41:38,085 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2024-11-28 03:41:38,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:41:38,114 INFO L225 Difference]: With dead ends: 7679 [2024-11-28 03:41:38,114 INFO L226 Difference]: Without dead ends: 5833 [2024-11-28 03:41:38,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:41:38,123 INFO L435 NwaCegarLoop]: 4746 mSDtfsCounter, 5118 mSDsluCounter, 14291 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5138 SdHoareTripleChecker+Valid, 19037 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:41:38,123 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5138 Valid, 19037 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:41:38,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5833 states. [2024-11-28 03:41:38,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5833 to 5634. [2024-11-28 03:41:38,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5634 states, 5362 states have (on average 1.7113017530772099) internal successors, (9176), 5385 states have internal predecessors, (9176), 196 states have call successors, (196), 55 states have call predecessors, (196), 74 states have return successors, (258), 201 states have call predecessors, (258), 194 states have call successors, (258) [2024-11-28 03:41:38,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5634 states to 5634 states and 9630 transitions. [2024-11-28 03:41:38,406 INFO L78 Accepts]: Start accepts. Automaton has 5634 states and 9630 transitions. Word has length 177 [2024-11-28 03:41:38,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:41:38,407 INFO L471 AbstractCegarLoop]: Abstraction has 5634 states and 9630 transitions. [2024-11-28 03:41:38,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:41:38,408 INFO L276 IsEmpty]: Start isEmpty. Operand 5634 states and 9630 transitions. [2024-11-28 03:41:38,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 03:41:38,412 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:41:38,412 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:41:38,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:41:38,413 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:41:38,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:38,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1036795401, now seen corresponding path program 1 times [2024-11-28 03:41:38,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:41:38,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578937080] [2024-11-28 03:41:38,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:41:38,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:41:38,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:41:38,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:41:38,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578937080] [2024-11-28 03:41:38,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578937080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:38,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:41:38,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:41:38,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609199849] [2024-11-28 03:41:38,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:38,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:41:38,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:41:38,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:41:38,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:41:38,674 INFO L87 Difference]: Start difference. First operand 5634 states and 9630 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:41:40,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:41:40,094 INFO L93 Difference]: Finished difference Result 13072 states and 21997 transitions. [2024-11-28 03:41:40,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:41:40,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2024-11-28 03:41:40,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:41:40,168 INFO L225 Difference]: With dead ends: 13072 [2024-11-28 03:41:40,168 INFO L226 Difference]: Without dead ends: 9579 [2024-11-28 03:41:40,181 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 [2024-11-28 03:41:40,182 INFO L435 NwaCegarLoop]: 4739 mSDtfsCounter, 5110 mSDsluCounter, 14272 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5130 SdHoareTripleChecker+Valid, 19011 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:41:40,183 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5130 Valid, 19011 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:41:40,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9579 states. [2024-11-28 03:41:40,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9579 to 9306. [2024-11-28 03:41:40,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9306 states, 8772 states have (on average 1.6919744642042864) internal successors, (14842), 8841 states have internal predecessors, (14842), 364 states have call successors, (364), 103 states have call predecessors, (364), 168 states have return successors, (618), 377 states have call predecessors, (618), 362 states have call successors, (618) [2024-11-28 03:41:40,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9306 states to 9306 states and 15824 transitions. [2024-11-28 03:41:40,693 INFO L78 Accepts]: Start accepts. Automaton has 9306 states and 15824 transitions. Word has length 177 [2024-11-28 03:41:40,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:41:40,694 INFO L471 AbstractCegarLoop]: Abstraction has 9306 states and 15824 transitions. [2024-11-28 03:41:40,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:41:40,695 INFO L276 IsEmpty]: Start isEmpty. Operand 9306 states and 15824 transitions. [2024-11-28 03:41:40,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 03:41:40,702 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:41:40,702 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:41:40,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:41:40,703 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:41:40,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:40,703 INFO L85 PathProgramCache]: Analyzing trace with hash -650932999, now seen corresponding path program 1 times [2024-11-28 03:41:40,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:41:40,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459331684] [2024-11-28 03:41:40,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:41:40,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:40,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:41:40,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:41:40,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:41:40,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459331684] [2024-11-28 03:41:40,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459331684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:40,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:41:40,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:41:40,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736796271] [2024-11-28 03:41:40,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:40,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:41:40,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:41:40,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:41:40,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:41:40,958 INFO L87 Difference]: Start difference. First operand 9306 states and 15824 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:41:42,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:41:42,509 INFO L93 Difference]: Finished difference Result 25352 states and 43321 transitions. [2024-11-28 03:41:42,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:41:42,510 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2024-11-28 03:41:42,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:41:42,597 INFO L225 Difference]: With dead ends: 25352 [2024-11-28 03:41:42,597 INFO L226 Difference]: Without dead ends: 18187 [2024-11-28 03:41:42,628 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 [2024-11-28 03:41:42,629 INFO L435 NwaCegarLoop]: 4736 mSDtfsCounter, 5105 mSDsluCounter, 14263 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5125 SdHoareTripleChecker+Valid, 18999 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:41:42,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5125 Valid, 18999 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:41:42,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18187 states. [2024-11-28 03:41:43,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18187 to 17757. [2024-11-28 03:41:43,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17757 states, 16645 states have (on average 1.6952838690297387) internal successors, (28218), 16860 states have internal predecessors, (28218), 700 states have call successors, (700), 199 states have call predecessors, (700), 410 states have return successors, (1722), 729 states have call predecessors, (1722), 698 states have call successors, (1722) [2024-11-28 03:41:43,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17757 states to 17757 states and 30640 transitions. [2024-11-28 03:41:43,472 INFO L78 Accepts]: Start accepts. Automaton has 17757 states and 30640 transitions. Word has length 177 [2024-11-28 03:41:43,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:41:43,473 INFO L471 AbstractCegarLoop]: Abstraction has 17757 states and 30640 transitions. [2024-11-28 03:41:43,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:41:43,473 INFO L276 IsEmpty]: Start isEmpty. Operand 17757 states and 30640 transitions. [2024-11-28 03:41:43,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 03:41:43,483 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:41:43,483 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:41:43,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:41:43,483 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:41:43,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:43,484 INFO L85 PathProgramCache]: Analyzing trace with hash -915580489, now seen corresponding path program 1 times [2024-11-28 03:41:43,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:41:43,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347867561] [2024-11-28 03:41:43,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:41:43,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:41:43,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:41:43,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:41:43,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347867561] [2024-11-28 03:41:43,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347867561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:43,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:41:43,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:41:43,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354638392] [2024-11-28 03:41:43,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:43,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:41:43,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:41:43,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:41:43,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:41:43,691 INFO L87 Difference]: Start difference. First operand 17757 states and 30640 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:41:44,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:41:44,888 INFO L93 Difference]: Finished difference Result 38273 states and 67446 transitions. [2024-11-28 03:41:44,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:41:44,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2024-11-28 03:41:44,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:41:44,976 INFO L225 Difference]: With dead ends: 38273 [2024-11-28 03:41:44,976 INFO L226 Difference]: Without dead ends: 22657 [2024-11-28 03:41:45,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:41:45,015 INFO L435 NwaCegarLoop]: 4404 mSDtfsCounter, 4774 mSDsluCounter, 8649 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4794 SdHoareTripleChecker+Valid, 13053 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:41:45,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4794 Valid, 13053 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:41:45,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22657 states. [2024-11-28 03:41:45,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22657 to 17757. [2024-11-28 03:41:45,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17757 states, 16645 states have (on average 1.693301291679183) internal successors, (28185), 16860 states have internal predecessors, (28185), 700 states have call successors, (700), 199 states have call predecessors, (700), 410 states have return successors, (1722), 729 states have call predecessors, (1722), 698 states have call successors, (1722) [2024-11-28 03:41:45,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17757 states to 17757 states and 30607 transitions. [2024-11-28 03:41:45,791 INFO L78 Accepts]: Start accepts. Automaton has 17757 states and 30607 transitions. Word has length 177 [2024-11-28 03:41:45,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:41:45,791 INFO L471 AbstractCegarLoop]: Abstraction has 17757 states and 30607 transitions. [2024-11-28 03:41:45,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:41:45,792 INFO L276 IsEmpty]: Start isEmpty. Operand 17757 states and 30607 transitions. [2024-11-28 03:41:45,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 03:41:45,803 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:41:45,803 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:41:45,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:41:45,804 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:41:45,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:45,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1015545145, now seen corresponding path program 1 times [2024-11-28 03:41:45,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:41:45,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123741240] [2024-11-28 03:41:45,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:41:45,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:41:46,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:41:46,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:41:46,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123741240] [2024-11-28 03:41:46,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123741240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:46,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:41:46,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:41:46,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982329332] [2024-11-28 03:41:46,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:46,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:41:46,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:41:46,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:41:46,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:41:46,138 INFO L87 Difference]: Start difference. First operand 17757 states and 30607 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:41:48,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:41:48,849 INFO L93 Difference]: Finished difference Result 53887 states and 95068 transitions. [2024-11-28 03:41:48,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:41:48,850 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2024-11-28 03:41:48,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:41:49,192 INFO L225 Difference]: With dead ends: 53887 [2024-11-28 03:41:49,192 INFO L226 Difference]: Without dead ends: 38271 [2024-11-28 03:41:49,226 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 [2024-11-28 03:41:49,228 INFO L435 NwaCegarLoop]: 4728 mSDtfsCounter, 5092 mSDsluCounter, 14240 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5112 SdHoareTripleChecker+Valid, 18968 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:41:49,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5112 Valid, 18968 Invalid, 1131 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:41:49,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38271 states. [2024-11-28 03:41:50,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38271 to 37575. [2024-11-28 03:41:50,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37575 states, 35145 states have (on average 1.7138995589699815) internal successors, (60235), 35814 states have internal predecessors, (60235), 1372 states have call successors, (1372), 391 states have call predecessors, (1372), 1056 states have return successors, (5466), 1433 states have call predecessors, (5466), 1370 states have call successors, (5466) [2024-11-28 03:41:50,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37575 states to 37575 states and 67073 transitions. [2024-11-28 03:41:50,835 INFO L78 Accepts]: Start accepts. Automaton has 37575 states and 67073 transitions. Word has length 177 [2024-11-28 03:41:50,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:41:50,835 INFO L471 AbstractCegarLoop]: Abstraction has 37575 states and 67073 transitions. [2024-11-28 03:41:50,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:41:50,836 INFO L276 IsEmpty]: Start isEmpty. Operand 37575 states and 67073 transitions. [2024-11-28 03:41:50,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 03:41:50,851 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:41:50,851 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:41:50,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:41:50,852 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:41:50,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:50,852 INFO L85 PathProgramCache]: Analyzing trace with hash -307633801, now seen corresponding path program 1 times [2024-11-28 03:41:50,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:41:50,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830795921] [2024-11-28 03:41:50,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:41:50,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:41:51,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:41:51,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:41:51,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830795921] [2024-11-28 03:41:51,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830795921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:51,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:41:51,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:41:51,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689613731] [2024-11-28 03:41:51,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:51,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:41:51,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:41:51,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:41:51,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:41:51,070 INFO L87 Difference]: Start difference. First operand 37575 states and 67073 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:41:55,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:41:55,135 INFO L93 Difference]: Finished difference Result 122387 states and 227212 transitions. [2024-11-28 03:41:55,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:41:55,136 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2024-11-28 03:41:55,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:41:55,858 INFO L225 Difference]: With dead ends: 122387 [2024-11-28 03:41:55,858 INFO L226 Difference]: Without dead ends: 86953 [2024-11-28 03:41:55,965 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:41:55,966 INFO L435 NwaCegarLoop]: 4725 mSDtfsCounter, 5087 mSDsluCounter, 14231 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5107 SdHoareTripleChecker+Valid, 18956 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:41:55,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5107 Valid, 18956 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:41:56,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86953 states. [2024-11-28 03:41:59,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86953 to 85716. [2024-11-28 03:41:59,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85716 states, 80164 states have (on average 1.7446110473529266) internal successors, (139855), 82227 states have internal predecessors, (139855), 2716 states have call successors, (2716), 775 states have call predecessors, (2716), 2834 states have return successors, (19098), 2841 states have call predecessors, (19098), 2714 states have call successors, (19098) [2024-11-28 03:42:00,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85716 states to 85716 states and 161669 transitions. [2024-11-28 03:42:00,479 INFO L78 Accepts]: Start accepts. Automaton has 85716 states and 161669 transitions. Word has length 177 [2024-11-28 03:42:00,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:42:00,479 INFO L471 AbstractCegarLoop]: Abstraction has 85716 states and 161669 transitions. [2024-11-28 03:42:00,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:42:00,480 INFO L276 IsEmpty]: Start isEmpty. Operand 85716 states and 161669 transitions. [2024-11-28 03:42:00,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 03:42:00,513 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:42:00,513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:42:00,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:42:00,514 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:42:00,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:42:00,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1589345657, now seen corresponding path program 1 times [2024-11-28 03:42:00,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:42:00,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302500488] [2024-11-28 03:42:00,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:42:00,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:42:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:42:00,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:42:00,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:42:00,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302500488] [2024-11-28 03:42:00,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302500488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:42:00,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:42:00,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:42:00,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324811137] [2024-11-28 03:42:00,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:42:00,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:42:00,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:42:00,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:42:00,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:42:00,791 INFO L87 Difference]: Start difference. First operand 85716 states and 161669 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:42:08,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:42:08,153 INFO L93 Difference]: Finished difference Result 291888 states and 581294 transitions. [2024-11-28 03:42:08,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:42:08,154 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2024-11-28 03:42:08,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:42:09,590 INFO L225 Difference]: With dead ends: 291888 [2024-11-28 03:42:09,591 INFO L226 Difference]: Without dead ends: 208313 [2024-11-28 03:42:09,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:42:09,888 INFO L435 NwaCegarLoop]: 4452 mSDtfsCounter, 5127 mSDsluCounter, 13579 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5147 SdHoareTripleChecker+Valid, 18031 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:42:09,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5147 Valid, 18031 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:42:10,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208313 states.