./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label49+token_ring.08.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b1c8d4-5913-473a-9827-1850fb30b08a/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b1c8d4-5913-473a-9827-1850fb30b08a/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b1c8d4-5913-473a-9827-1850fb30b08a/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b1c8d4-5913-473a-9827-1850fb30b08a/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label49+token_ring.08.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b1c8d4-5913-473a-9827-1850fb30b08a/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b1c8d4-5913-473a-9827-1850fb30b08a/bin/uautomizer-verify-qhAvR1uOyd --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 aaf13b6417c3a40bd252c0d41a10a8dacb34259e9c2292b8e82d477fe2508ef5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:00:23,943 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:00:24,056 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b1c8d4-5913-473a-9827-1850fb30b08a/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:00:24,065 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:00:24,066 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:00:24,092 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:00:24,092 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:00:24,093 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:00:24,093 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:00:24,093 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:00:24,093 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:00:24,093 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:00:24,094 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:00:24,094 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:00:24,094 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:00:24,094 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:00:24,094 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:00:24,094 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:00:24,094 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:00:24,095 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:00:24,095 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:00:24,095 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:00:24,095 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:00:24,095 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:00:24,095 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:00:24,095 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:00:24,095 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:00:24,095 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:00:24,096 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:00:24,096 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:00:24,096 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:00:24,096 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:00:24,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:00:24,096 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:00:24,096 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:00:24,096 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:00:24,097 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:00:24,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:00:24,097 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:00:24,097 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:00:24,097 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:00:24,097 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:00:24,097 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_08b1c8d4-5913-473a-9827-1850fb30b08a/bin/uautomizer-verify-qhAvR1uOyd 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 -> aaf13b6417c3a40bd252c0d41a10a8dacb34259e9c2292b8e82d477fe2508ef5 [2024-11-13 13:00:24,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:00:24,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:00:24,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:00:24,437 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:00:24,437 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:00:24,439 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b1c8d4-5913-473a-9827-1850fb30b08a/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/combinations/Problem05_label49+token_ring.08.cil-2.c Unable to find full path for "g++" [2024-11-13 13:00:26,595 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:00:27,488 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:00:27,489 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b1c8d4-5913-473a-9827-1850fb30b08a/sv-benchmarks/c/combinations/Problem05_label49+token_ring.08.cil-2.c [2024-11-13 13:00:27,553 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b1c8d4-5913-473a-9827-1850fb30b08a/bin/uautomizer-verify-qhAvR1uOyd/data/479319e45/0f03d6dbfd0f4996b02d2fd0e8bad72d/FLAG5de26073b [2024-11-13 13:00:27,582 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b1c8d4-5913-473a-9827-1850fb30b08a/bin/uautomizer-verify-qhAvR1uOyd/data/479319e45/0f03d6dbfd0f4996b02d2fd0e8bad72d [2024-11-13 13:00:27,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:00:27,587 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:00:27,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:00:27,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:00:27,596 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:00:27,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:00:27" (1/1) ... [2024-11-13 13:00:27,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bab3cd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:27, skipping insertion in model container [2024-11-13 13:00:27,601 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:00:27" (1/1) ... [2024-11-13 13:00:27,841 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:00:30,027 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_08b1c8d4-5913-473a-9827-1850fb30b08a/sv-benchmarks/c/combinations/Problem05_label49+token_ring.08.cil-2.c[380593,380606] [2024-11-13 13:00:30,077 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_08b1c8d4-5913-473a-9827-1850fb30b08a/sv-benchmarks/c/combinations/Problem05_label49+token_ring.08.cil-2.c[383339,383352] [2024-11-13 13:00:30,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:00:30,479 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:00:31,826 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_08b1c8d4-5913-473a-9827-1850fb30b08a/sv-benchmarks/c/combinations/Problem05_label49+token_ring.08.cil-2.c[380593,380606] [2024-11-13 13:00:31,832 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_08b1c8d4-5913-473a-9827-1850fb30b08a/sv-benchmarks/c/combinations/Problem05_label49+token_ring.08.cil-2.c[383339,383352] [2024-11-13 13:00:31,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:00:31,946 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:00:31,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:31 WrapperNode [2024-11-13 13:00:31,947 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:00:31,948 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:00:31,948 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:00:31,948 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:00:31,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:31" (1/1) ... [2024-11-13 13:00:32,036 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:31" (1/1) ... [2024-11-13 13:00:32,697 INFO L138 Inliner]: procedures = 60, calls = 66, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 12987 [2024-11-13 13:00:32,698 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:00:32,698 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:00:32,698 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:00:32,699 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:00:32,711 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:31" (1/1) ... [2024-11-13 13:00:32,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:31" (1/1) ... [2024-11-13 13:00:32,763 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:31" (1/1) ... [2024-11-13 13:00:32,885 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]. [2024-11-13 13:00:32,885 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:31" (1/1) ... [2024-11-13 13:00:32,885 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:31" (1/1) ... [2024-11-13 13:00:33,193 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:31" (1/1) ... [2024-11-13 13:00:33,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:31" (1/1) ... [2024-11-13 13:00:33,329 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:31" (1/1) ... [2024-11-13 13:00:33,357 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:31" (1/1) ... [2024-11-13 13:00:33,430 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:00:33,432 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:00:33,432 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:00:33,432 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:00:33,433 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:31" (1/1) ... [2024-11-13 13:00:33,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:00:33,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b1c8d4-5913-473a-9827-1850fb30b08a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:00:33,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b1c8d4-5913-473a-9827-1850fb30b08a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:00:33,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08b1c8d4-5913-473a-9827-1850fb30b08a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:00:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:00:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-13 13:00:33,524 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-13 13:00:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-13 13:00:33,524 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-13 13:00:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-13 13:00:33,525 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-13 13:00:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-13 13:00:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-13 13:00:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-13 13:00:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-13 13:00:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-13 13:00:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-13 13:00:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-13 13:00:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-13 13:00:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:00:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:00:33,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:00:33,679 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:00:33,681 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:00:45,806 INFO L? ?]: Removed 1735 outVars from TransFormulas that were not future-live. [2024-11-13 13:00:45,807 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:00:45,867 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:00:45,867 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-13 13:00:45,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:00:45 BoogieIcfgContainer [2024-11-13 13:00:45,868 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:00:45,871 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:00:45,871 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:00:45,879 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:00:45,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:00:27" (1/3) ... [2024-11-13 13:00:45,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20272b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:00:45, skipping insertion in model container [2024-11-13 13:00:45,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:31" (2/3) ... [2024-11-13 13:00:45,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20272b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:00:45, skipping insertion in model container [2024-11-13 13:00:45,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:00:45" (3/3) ... [2024-11-13 13:00:45,881 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.08.cil-2.c [2024-11-13 13:00:45,896 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:00:45,900 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label49+token_ring.08.cil-2.c that has 8 procedures, 2482 locations, 1 initial locations, 12 loop locations, and 2 error locations. [2024-11-13 13:00:46,013 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:00:46,025 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;@5f5f7c25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:00:46,026 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 13:00:46,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 2482 states, 2448 states have (on average 1.8455882352941178) internal successors, (4518), 2453 states have internal predecessors, (4518), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-13 13:00:46,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-13 13:00:46,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:46,053 INFO L215 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] [2024-11-13 13:00:46,053 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:46,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:46,058 INFO L85 PathProgramCache]: Analyzing trace with hash 162031069, now seen corresponding path program 1 times [2024-11-13 13:00:46,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:46,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88773379] [2024-11-13 13:00:46,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:46,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:46,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:46,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:00:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:46,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:00:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:46,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 13:00:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:46,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 13:00:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:46,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 13:00:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:46,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:00:46,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:46,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88773379] [2024-11-13 13:00:46,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88773379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:46,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:46,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:00:46,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594679301] [2024-11-13 13:00:46,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:46,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:00:46,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:46,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:00:46,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:00:46,841 INFO L87 Difference]: Start difference. First operand has 2482 states, 2448 states have (on average 1.8455882352941178) internal successors, (4518), 2453 states have internal predecessors, (4518), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:00:48,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:48,752 INFO L93 Difference]: Finished difference Result 5052 states and 9284 transitions. [2024-11-13 13:00:48,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:00:48,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (6), 4 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 135 [2024-11-13 13:00:48,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:48,790 INFO L225 Difference]: With dead ends: 5052 [2024-11-13 13:00:48,790 INFO L226 Difference]: Without dead ends: 2512 [2024-11-13 13:00:48,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:00:48,805 INFO L432 NwaCegarLoop]: 4302 mSDtfsCounter, 758 mSDsluCounter, 12397 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 16699 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:48,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 16699 Invalid, 781 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [52 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 13:00:48,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2512 states. [2024-11-13 13:00:48,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2512 to 2414. [2024-11-13 13:00:48,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2414 states, 2382 states have (on average 1.8316540722082284) internal successors, (4363), 2385 states have internal predecessors, (4363), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 13:00:48,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 4409 transitions. [2024-11-13 13:00:48,955 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 4409 transitions. Word has length 135 [2024-11-13 13:00:48,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:48,956 INFO L471 AbstractCegarLoop]: Abstraction has 2414 states and 4409 transitions. [2024-11-13 13:00:48,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:00:48,956 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 4409 transitions. [2024-11-13 13:00:48,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-13 13:00:48,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:48,962 INFO L215 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] [2024-11-13 13:00:48,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:00:48,963 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:48,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:48,964 INFO L85 PathProgramCache]: Analyzing trace with hash -699802533, now seen corresponding path program 1 times [2024-11-13 13:00:48,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:48,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606316800] [2024-11-13 13:00:48,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:48,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:48,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:00:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:00:49,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 13:00:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 13:00:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 13:00:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:49,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:00:49,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:49,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606316800] [2024-11-13 13:00:49,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606316800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:49,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:49,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:00:49,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883612225] [2024-11-13 13:00:49,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:49,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:00:49,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:49,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:00:49,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:00:49,500 INFO L87 Difference]: Start difference. First operand 2414 states and 4409 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:00:52,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:52,668 INFO L93 Difference]: Finished difference Result 3174 states and 5618 transitions. [2024-11-13 13:00:52,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:00:52,669 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (6), 4 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 135 [2024-11-13 13:00:52,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:52,684 INFO L225 Difference]: With dead ends: 3174 [2024-11-13 13:00:52,684 INFO L226 Difference]: Without dead ends: 2897 [2024-11-13 13:00:52,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:00:52,688 INFO L432 NwaCegarLoop]: 4246 mSDtfsCounter, 5083 mSDsluCounter, 12711 mSDsCounter, 0 mSdLazyCounter, 1632 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5098 SdHoareTripleChecker+Valid, 16957 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:52,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5098 Valid, 16957 Invalid, 1732 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [100 Valid, 1632 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 13:00:52,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2024-11-13 13:00:52,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 2700. [2024-11-13 13:00:52,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2700 states, 2644 states have (on average 1.8055975794251136) internal successors, (4774), 2648 states have internal predecessors, (4774), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2024-11-13 13:00:52,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2700 states to 2700 states and 4857 transitions. [2024-11-13 13:00:52,826 INFO L78 Accepts]: Start accepts. Automaton has 2700 states and 4857 transitions. Word has length 135 [2024-11-13 13:00:52,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:52,826 INFO L471 AbstractCegarLoop]: Abstraction has 2700 states and 4857 transitions. [2024-11-13 13:00:52,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:00:52,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2700 states and 4857 transitions. [2024-11-13 13:00:52,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-13 13:00:52,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:52,834 INFO L215 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] [2024-11-13 13:00:52,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:00:52,836 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:52,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:52,837 INFO L85 PathProgramCache]: Analyzing trace with hash -2061804969, now seen corresponding path program 1 times [2024-11-13 13:00:52,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:52,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363239031] [2024-11-13 13:00:52,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:52,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:53,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:00:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:53,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:00:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:53,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 13:00:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:53,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 13:00:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:53,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 13:00:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:53,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:00:53,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:53,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363239031] [2024-11-13 13:00:53,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363239031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:53,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:53,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:00:53,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437231621] [2024-11-13 13:00:53,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:53,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:00:53,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:53,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:00:53,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:00:53,309 INFO L87 Difference]: Start difference. First operand 2700 states and 4857 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:00:57,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:57,170 INFO L93 Difference]: Finished difference Result 3855 states and 6694 transitions. [2024-11-13 13:00:57,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 13:00:57,171 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 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 135 [2024-11-13 13:00:57,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:57,187 INFO L225 Difference]: With dead ends: 3855 [2024-11-13 13:00:57,188 INFO L226 Difference]: Without dead ends: 3292 [2024-11-13 13:00:57,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 13:00:57,194 INFO L432 NwaCegarLoop]: 4405 mSDtfsCounter, 5100 mSDsluCounter, 17356 mSDsCounter, 0 mSdLazyCounter, 2546 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5115 SdHoareTripleChecker+Valid, 21761 SdHoareTripleChecker+Invalid, 2603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:57,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5115 Valid, 21761 Invalid, 2603 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 2546 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 13:00:57,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3292 states. [2024-11-13 13:00:57,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3292 to 2967. [2024-11-13 13:00:57,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2967 states, 2887 states have (on average 1.7828195358503638) internal successors, (5147), 2892 states have internal predecessors, (5147), 58 states have call successors, (58), 19 states have call predecessors, (58), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2024-11-13 13:00:57,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 5266 transitions. [2024-11-13 13:00:57,332 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 5266 transitions. Word has length 135 [2024-11-13 13:00:57,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:57,333 INFO L471 AbstractCegarLoop]: Abstraction has 2967 states and 5266 transitions. [2024-11-13 13:00:57,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:00:57,334 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 5266 transitions. [2024-11-13 13:00:57,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-13 13:00:57,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:57,337 INFO L215 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] [2024-11-13 13:00:57,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:00:57,337 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:57,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:57,338 INFO L85 PathProgramCache]: Analyzing trace with hash -132872743, now seen corresponding path program 1 times [2024-11-13 13:00:57,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:57,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726438665] [2024-11-13 13:00:57,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:57,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:57,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:57,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:00:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:57,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:00:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:57,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 13:00:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:57,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 13:00:57,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:57,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 13:00:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:57,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:00:57,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:57,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726438665] [2024-11-13 13:00:57,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726438665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:57,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:57,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:00:57,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012057895] [2024-11-13 13:00:57,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:57,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:00:57,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:57,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:00:57,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:00:57,685 INFO L87 Difference]: Start difference. First operand 2967 states and 5266 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:01:00,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:00,692 INFO L93 Difference]: Finished difference Result 4859 states and 8269 transitions. [2024-11-13 13:01:00,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 13:01:00,693 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 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 135 [2024-11-13 13:01:00,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:00,710 INFO L225 Difference]: With dead ends: 4859 [2024-11-13 13:01:00,710 INFO L226 Difference]: Without dead ends: 4029 [2024-11-13 13:01:00,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 13:01:00,715 INFO L432 NwaCegarLoop]: 4221 mSDtfsCounter, 5182 mSDsluCounter, 16830 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5197 SdHoareTripleChecker+Valid, 21051 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:00,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5197 Valid, 21051 Invalid, 2250 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [91 Valid, 2159 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 13:01:00,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4029 states. [2024-11-13 13:01:00,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4029 to 3502. [2024-11-13 13:01:00,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3502 states, 3374 states have (on average 1.7468879668049793) internal successors, (5894), 3381 states have internal predecessors, (5894), 92 states have call successors, (92), 31 states have call predecessors, (92), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2024-11-13 13:01:00,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3502 states to 3502 states and 6089 transitions. [2024-11-13 13:01:00,881 INFO L78 Accepts]: Start accepts. Automaton has 3502 states and 6089 transitions. Word has length 135 [2024-11-13 13:01:00,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:00,881 INFO L471 AbstractCegarLoop]: Abstraction has 3502 states and 6089 transitions. [2024-11-13 13:01:00,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:01:00,881 INFO L276 IsEmpty]: Start isEmpty. Operand 3502 states and 6089 transitions. [2024-11-13 13:01:00,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-13 13:01:00,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:00,884 INFO L215 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] [2024-11-13 13:01:00,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:01:00,885 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:00,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:00,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1869013527, now seen corresponding path program 1 times [2024-11-13 13:01:00,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:00,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795784684] [2024-11-13 13:01:00,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:00,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:01:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:01,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:01:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:01,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:01:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:01,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 13:01:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:01,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 13:01:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:01,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 13:01:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:01,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:01:01,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:01:01,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795784684] [2024-11-13 13:01:01,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795784684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:01:01,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:01:01,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:01:01,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145519448] [2024-11-13 13:01:01,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:01:01,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:01:01,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:01:01,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:01:01,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:01:01,266 INFO L87 Difference]: Start difference. First operand 3502 states and 6089 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:01:04,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:04,784 INFO L93 Difference]: Finished difference Result 6794 states and 11288 transitions. [2024-11-13 13:01:04,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 13:01:04,785 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 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 135 [2024-11-13 13:01:04,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:04,804 INFO L225 Difference]: With dead ends: 6794 [2024-11-13 13:01:04,804 INFO L226 Difference]: Without dead ends: 5429 [2024-11-13 13:01:04,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 13:01:04,809 INFO L432 NwaCegarLoop]: 4403 mSDtfsCounter, 5098 mSDsluCounter, 17356 mSDsCounter, 0 mSdLazyCounter, 2535 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5113 SdHoareTripleChecker+Valid, 21759 SdHoareTripleChecker+Invalid, 2594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:04,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5113 Valid, 21759 Invalid, 2594 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 2535 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 13:01:04,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5429 states. [2024-11-13 13:01:05,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5429 to 4573. [2024-11-13 13:01:05,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4573 states, 4349 states have (on average 1.6987813290411589) internal successors, (7388), 4360 states have internal predecessors, (7388), 160 states have call successors, (160), 55 states have call predecessors, (160), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2024-11-13 13:01:05,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4573 states to 4573 states and 7741 transitions. [2024-11-13 13:01:05,047 INFO L78 Accepts]: Start accepts. Automaton has 4573 states and 7741 transitions. Word has length 135 [2024-11-13 13:01:05,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:05,048 INFO L471 AbstractCegarLoop]: Abstraction has 4573 states and 7741 transitions. [2024-11-13 13:01:05,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:01:05,048 INFO L276 IsEmpty]: Start isEmpty. Operand 4573 states and 7741 transitions. [2024-11-13 13:01:05,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-13 13:01:05,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:05,055 INFO L215 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] [2024-11-13 13:01:05,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:01:05,055 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:05,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:05,059 INFO L85 PathProgramCache]: Analyzing trace with hash -698808807, now seen corresponding path program 1 times [2024-11-13 13:01:05,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:05,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029884568] [2024-11-13 13:01:05,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:05,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:01:05,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:05,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:01:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:05,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:01:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:05,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 13:01:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:05,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 13:01:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:05,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 13:01:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:05,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:01:05,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:01:05,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029884568] [2024-11-13 13:01:05,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029884568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:01:05,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:01:05,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:01:05,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011844250] [2024-11-13 13:01:05,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:01:05,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:01:05,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:01:05,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:01:05,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:01:05,352 INFO L87 Difference]: Start difference. First operand 4573 states and 7741 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:01:08,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:08,638 INFO L93 Difference]: Finished difference Result 10656 states and 17330 transitions. [2024-11-13 13:01:08,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 13:01:08,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 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 135 [2024-11-13 13:01:08,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:08,688 INFO L225 Difference]: With dead ends: 10656 [2024-11-13 13:01:08,689 INFO L226 Difference]: Without dead ends: 8220 [2024-11-13 13:01:08,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 13:01:08,699 INFO L432 NwaCegarLoop]: 4403 mSDtfsCounter, 5094 mSDsluCounter, 17356 mSDsCounter, 0 mSdLazyCounter, 2507 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5109 SdHoareTripleChecker+Valid, 21759 SdHoareTripleChecker+Invalid, 2566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:08,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5109 Valid, 21759 Invalid, 2566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 2507 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 13:01:08,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8220 states. [2024-11-13 13:01:09,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8220 to 6729. [2024-11-13 13:01:09,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6729 states, 6313 states have (on average 1.6473942658007286) internal successors, (10400), 6332 states have internal predecessors, (10400), 296 states have call successors, (296), 103 states have call predecessors, (296), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2024-11-13 13:01:09,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6729 states to 6729 states and 11087 transitions. [2024-11-13 13:01:09,083 INFO L78 Accepts]: Start accepts. Automaton has 6729 states and 11087 transitions. Word has length 135 [2024-11-13 13:01:09,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:09,084 INFO L471 AbstractCegarLoop]: Abstraction has 6729 states and 11087 transitions. [2024-11-13 13:01:09,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:01:09,085 INFO L276 IsEmpty]: Start isEmpty. Operand 6729 states and 11087 transitions. [2024-11-13 13:01:09,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-13 13:01:09,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:09,090 INFO L215 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] [2024-11-13 13:01:09,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:01:09,090 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:09,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:09,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1948795547, now seen corresponding path program 1 times [2024-11-13 13:01:09,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:09,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47447904] [2024-11-13 13:01:09,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:09,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:01:09,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:09,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:01:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:09,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:01:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:09,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 13:01:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:09,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 13:01:09,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:09,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 13:01:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:09,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:01:09,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:01:09,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47447904] [2024-11-13 13:01:09,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47447904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:01:09,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:01:09,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:01:09,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592969863] [2024-11-13 13:01:09,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:01:09,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:01:09,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:01:09,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:01:09,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:01:09,344 INFO L87 Difference]: Start difference. First operand 6729 states and 11087 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:01:13,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:13,003 INFO L93 Difference]: Finished difference Result 18398 states and 29506 transitions. [2024-11-13 13:01:13,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 13:01:13,004 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 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 135 [2024-11-13 13:01:13,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:13,062 INFO L225 Difference]: With dead ends: 18398 [2024-11-13 13:01:13,063 INFO L226 Difference]: Without dead ends: 13806 [2024-11-13 13:01:13,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 13:01:13,080 INFO L432 NwaCegarLoop]: 4403 mSDtfsCounter, 5093 mSDsluCounter, 17356 mSDsCounter, 0 mSdLazyCounter, 2494 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5108 SdHoareTripleChecker+Valid, 21759 SdHoareTripleChecker+Invalid, 2553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:13,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5108 Valid, 21759 Invalid, 2553 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 2494 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-13 13:01:13,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13806 states. [2024-11-13 13:01:13,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13806 to 11054. [2024-11-13 13:01:13,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11054 states, 10254 states have (on average 1.603471815876731) internal successors, (16442), 10289 states have internal predecessors, (16442), 568 states have call successors, (568), 199 states have call predecessors, (568), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-13 13:01:13,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11054 states to 11054 states and 17851 transitions. [2024-11-13 13:01:13,707 INFO L78 Accepts]: Start accepts. Automaton has 11054 states and 17851 transitions. Word has length 135 [2024-11-13 13:01:13,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:13,707 INFO L471 AbstractCegarLoop]: Abstraction has 11054 states and 17851 transitions. [2024-11-13 13:01:13,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:01:13,707 INFO L276 IsEmpty]: Start isEmpty. Operand 11054 states and 17851 transitions. [2024-11-13 13:01:13,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-13 13:01:13,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:13,717 INFO L215 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] [2024-11-13 13:01:13,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 13:01:13,717 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:13,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:13,718 INFO L85 PathProgramCache]: Analyzing trace with hash -182555175, now seen corresponding path program 1 times [2024-11-13 13:01:13,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:13,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243996212] [2024-11-13 13:01:13,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:13,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:01:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:13,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:01:13,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:01:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 13:01:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 13:01:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 13:01:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:14,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:01:14,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:01:14,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243996212] [2024-11-13 13:01:14,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243996212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:01:14,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:01:14,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:01:14,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069412985] [2024-11-13 13:01:14,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:01:14,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:01:14,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:01:14,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:01:14,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:01:14,131 INFO L87 Difference]: Start difference. First operand 11054 states and 17851 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:01:16,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:16,323 INFO L93 Difference]: Finished difference Result 22862 states and 36753 transitions. [2024-11-13 13:01:16,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:01:16,323 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 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 135 [2024-11-13 13:01:16,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:16,382 INFO L225 Difference]: With dead ends: 22862 [2024-11-13 13:01:16,382 INFO L226 Difference]: Without dead ends: 13945 [2024-11-13 13:01:16,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:01:16,408 INFO L432 NwaCegarLoop]: 4196 mSDtfsCounter, 4794 mSDsluCounter, 16579 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4810 SdHoareTripleChecker+Valid, 20775 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:16,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4810 Valid, 20775 Invalid, 1323 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 13:01:16,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13945 states. [2024-11-13 13:01:17,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13945 to 11054. [2024-11-13 13:01:17,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11054 states, 10254 states have (on average 1.6002535595865028) internal successors, (16409), 10289 states have internal predecessors, (16409), 568 states have call successors, (568), 199 states have call predecessors, (568), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-13 13:01:17,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11054 states to 11054 states and 17818 transitions. [2024-11-13 13:01:17,222 INFO L78 Accepts]: Start accepts. Automaton has 11054 states and 17818 transitions. Word has length 135 [2024-11-13 13:01:17,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:17,222 INFO L471 AbstractCegarLoop]: Abstraction has 11054 states and 17818 transitions. [2024-11-13 13:01:17,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:01:17,222 INFO L276 IsEmpty]: Start isEmpty. Operand 11054 states and 17818 transitions. [2024-11-13 13:01:17,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-13 13:01:17,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:17,232 INFO L215 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] [2024-11-13 13:01:17,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:01:17,233 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:17,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:17,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1221139749, now seen corresponding path program 1 times [2024-11-13 13:01:17,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:17,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402732344] [2024-11-13 13:01:17,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:17,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:01:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:17,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:01:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:17,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:01:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:17,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 13:01:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:17,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 13:01:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:17,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 13:01:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:17,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:01:17,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:01:17,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402732344] [2024-11-13 13:01:17,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402732344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:01:17,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:01:17,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:01:17,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010216937] [2024-11-13 13:01:17,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:01:17,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:01:17,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:01:17,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:01:17,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:01:17,503 INFO L87 Difference]: Start difference. First operand 11054 states and 17818 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:01:21,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:21,818 INFO L93 Difference]: Finished difference Result 33847 states and 53816 transitions. [2024-11-13 13:01:21,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 13:01:21,818 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 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 135 [2024-11-13 13:01:21,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:21,923 INFO L225 Difference]: With dead ends: 33847 [2024-11-13 13:01:21,923 INFO L226 Difference]: Without dead ends: 24930 [2024-11-13 13:01:21,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 13:01:21,951 INFO L432 NwaCegarLoop]: 4403 mSDtfsCounter, 5085 mSDsluCounter, 17356 mSDsCounter, 0 mSdLazyCounter, 2456 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5100 SdHoareTripleChecker+Valid, 21759 SdHoareTripleChecker+Invalid, 2515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:21,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5100 Valid, 21759 Invalid, 2515 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 2456 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-13 13:01:21,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24930 states. [2024-11-13 13:01:23,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24930 to 19768. [2024-11-13 13:01:23,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19768 states, 18200 states have (on average 1.568186813186813) internal successors, (28541), 18267 states have internal predecessors, (28541), 1112 states have call successors, (1112), 391 states have call predecessors, (1112), 454 states have return successors, (1903), 1173 states have call predecessors, (1903), 1110 states have call successors, (1903) [2024-11-13 13:01:23,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19768 states to 19768 states and 31556 transitions. [2024-11-13 13:01:23,192 INFO L78 Accepts]: Start accepts. Automaton has 19768 states and 31556 transitions. Word has length 135 [2024-11-13 13:01:23,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:23,192 INFO L471 AbstractCegarLoop]: Abstraction has 19768 states and 31556 transitions. [2024-11-13 13:01:23,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:01:23,192 INFO L276 IsEmpty]: Start isEmpty. Operand 19768 states and 31556 transitions. [2024-11-13 13:01:23,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-13 13:01:23,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:23,206 INFO L215 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] [2024-11-13 13:01:23,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 13:01:23,206 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:23,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:23,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1100662169, now seen corresponding path program 1 times [2024-11-13 13:01:23,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:23,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252347222] [2024-11-13 13:01:23,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:23,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:01:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:23,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:01:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:23,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:01:23,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:23,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 13:01:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:23,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 13:01:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:23,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 13:01:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:23,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:01:23,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:01:23,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252347222] [2024-11-13 13:01:23,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252347222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:01:23,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:01:23,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:01:23,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342045977] [2024-11-13 13:01:23,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:01:23,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:01:23,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:01:23,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:01:23,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:01:23,455 INFO L87 Difference]: Start difference. First operand 19768 states and 31556 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:01:30,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:30,357 INFO L93 Difference]: Finished difference Result 72559 states and 115090 transitions. [2024-11-13 13:01:30,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 13:01:30,358 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 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 135 [2024-11-13 13:01:30,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:30,784 INFO L225 Difference]: With dead ends: 72559 [2024-11-13 13:01:30,788 INFO L226 Difference]: Without dead ends: 54928 [2024-11-13 13:01:30,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-13 13:01:30,887 INFO L432 NwaCegarLoop]: 4401 mSDtfsCounter, 5414 mSDsluCounter, 17348 mSDsCounter, 0 mSdLazyCounter, 2436 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5438 SdHoareTripleChecker+Valid, 21749 SdHoareTripleChecker+Invalid, 2498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:30,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5438 Valid, 21749 Invalid, 2498 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 2436 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-13 13:01:30,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54928 states. [2024-11-13 13:01:34,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54928 to 37065. [2024-11-13 13:01:34,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37065 states, 34025 states have (on average 1.5508302718589273) internal successors, (52767), 34156 states have internal predecessors, (52767), 2136 states have call successors, (2136), 775 states have call predecessors, (2136), 902 states have return successors, (4449), 2261 states have call predecessors, (4449), 2134 states have call successors, (4449) [2024-11-13 13:01:34,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37065 states to 37065 states and 59352 transitions. [2024-11-13 13:01:34,322 INFO L78 Accepts]: Start accepts. Automaton has 37065 states and 59352 transitions. Word has length 135 [2024-11-13 13:01:34,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:34,323 INFO L471 AbstractCegarLoop]: Abstraction has 37065 states and 59352 transitions. [2024-11-13 13:01:34,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:01:34,323 INFO L276 IsEmpty]: Start isEmpty. Operand 37065 states and 59352 transitions. [2024-11-13 13:01:34,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-13 13:01:34,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:34,354 INFO L215 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] [2024-11-13 13:01:34,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 13:01:34,355 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:34,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:34,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1041198309, now seen corresponding path program 1 times [2024-11-13 13:01:34,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:34,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132095542] [2024-11-13 13:01:34,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:34,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:01:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:34,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:01:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:34,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:01:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:34,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 13:01:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:34,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 13:01:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:34,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 13:01:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:34,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:01:34,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:01:34,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132095542] [2024-11-13 13:01:34,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132095542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:01:34,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:01:34,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:01:34,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570040045] [2024-11-13 13:01:34,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:01:34,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:01:34,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:01:34,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:01:34,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:01:34,884 INFO L87 Difference]: Start difference. First operand 37065 states and 59352 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:01:43,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:43,494 INFO L93 Difference]: Finished difference Result 140126 states and 224504 transitions. [2024-11-13 13:01:43,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 13:01:43,494 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 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 135 [2024-11-13 13:01:43,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:44,036 INFO L225 Difference]: With dead ends: 140126 [2024-11-13 13:01:44,036 INFO L226 Difference]: Without dead ends: 105198 [2024-11-13 13:01:44,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-13 13:01:44,203 INFO L432 NwaCegarLoop]: 4247 mSDtfsCounter, 5225 mSDsluCounter, 16850 mSDsCounter, 0 mSdLazyCounter, 2667 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5239 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:44,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5239 Valid, 21097 Invalid, 2754 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [87 Valid, 2667 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-13 13:01:44,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105198 states. [2024-11-13 13:01:49,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105198 to 70314. [2024-11-13 13:01:49,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70314 states, 64394 states have (on average 1.5370531415970432) internal successors, (98977), 64653 states have internal predecessors, (98977), 4120 states have call successors, (4120), 1543 states have call predecessors, (4120), 1798 states have return successors, (10935), 4373 states have call predecessors, (10935), 4118 states have call successors, (10935) [2024-11-13 13:01:49,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70314 states to 70314 states and 114032 transitions. [2024-11-13 13:01:49,933 INFO L78 Accepts]: Start accepts. Automaton has 70314 states and 114032 transitions. Word has length 135 [2024-11-13 13:01:49,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:49,934 INFO L471 AbstractCegarLoop]: Abstraction has 70314 states and 114032 transitions. [2024-11-13 13:01:49,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:01:49,934 INFO L276 IsEmpty]: Start isEmpty. Operand 70314 states and 114032 transitions. [2024-11-13 13:01:49,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-13 13:01:49,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:49,990 INFO L215 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] [2024-11-13 13:01:49,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 13:01:49,991 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:49,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:49,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1664479911, now seen corresponding path program 1 times [2024-11-13 13:01:49,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:49,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805808599] [2024-11-13 13:01:49,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:49,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:01:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:50,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 13:01:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:50,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 13:01:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:50,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 13:01:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:50,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 13:01:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:50,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 13:01:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:50,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:01:50,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:01:50,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805808599] [2024-11-13 13:01:50,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805808599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:01:50,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:01:50,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:01:50,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268923975] [2024-11-13 13:01:50,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:01:50,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:01:50,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:01:50,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:01:50,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:01:50,311 INFO L87 Difference]: Start difference. First operand 70314 states and 114032 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:02:03,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:02:03,658 INFO L93 Difference]: Finished difference Result 269053 states and 438350 transitions. [2024-11-13 13:02:03,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 13:02:03,659 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 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 135 [2024-11-13 13:02:03,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:02:04,704 INFO L225 Difference]: With dead ends: 269053 [2024-11-13 13:02:04,704 INFO L226 Difference]: Without dead ends: 200876 [2024-11-13 13:02:04,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-13 13:02:04,983 INFO L432 NwaCegarLoop]: 4401 mSDtfsCounter, 5340 mSDsluCounter, 17348 mSDsCounter, 0 mSdLazyCounter, 2405 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5364 SdHoareTripleChecker+Valid, 21749 SdHoareTripleChecker+Invalid, 2467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:02:04,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5364 Valid, 21749 Invalid, 2467 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 2405 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-13 13:02:05,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200876 states.