./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-1.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_b090047f-792a-44b9-870c-56fc146d46e6/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b090047f-792a-44b9-870c-56fc146d46e6/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_b090047f-792a-44b9-870c-56fc146d46e6/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b090047f-792a-44b9-870c-56fc146d46e6/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b090047f-792a-44b9-870c-56fc146d46e6/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_b090047f-792a-44b9-870c-56fc146d46e6/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 906e84f0a25a0f5132fcddd369ea6157dd86409b963593c3fbd2737ae25908f1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:48:14,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:48:14,598 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b090047f-792a-44b9-870c-56fc146d46e6/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 12:48:14,604 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:48:14,604 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:48:14,628 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:48:14,628 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:48:14,628 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:48:14,629 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:48:14,629 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:48:14,629 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:48:14,629 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:48:14,629 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:48:14,629 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:48:14,630 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:48:14,630 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:48:14,630 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:48:14,630 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:48:14,630 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:48:14,630 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:48:14,630 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:48:14,630 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:48:14,630 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:48:14,631 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:48:14,631 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:48:14,631 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:48:14,631 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:48:14,631 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:48:14,631 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:48:14,631 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:48:14,631 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:48:14,631 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:48:14,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:48:14,632 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:48:14,632 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:48:14,632 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:48:14,632 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:48:14,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:48:14,632 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:48:14,632 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:48:14,633 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:48:14,633 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:48:14,633 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_b090047f-792a-44b9-870c-56fc146d46e6/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 -> 906e84f0a25a0f5132fcddd369ea6157dd86409b963593c3fbd2737ae25908f1 [2024-11-13 12:48:15,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:48:15,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:48:15,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:48:15,024 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:48:15,028 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:48:15,029 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b090047f-792a-44b9-870c-56fc146d46e6/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-1.c Unable to find full path for "g++" [2024-11-13 12:48:17,155 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:48:17,966 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:48:17,968 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b090047f-792a-44b9-870c-56fc146d46e6/sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-1.c [2024-11-13 12:48:18,030 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b090047f-792a-44b9-870c-56fc146d46e6/bin/uautomizer-verify-qhAvR1uOyd/data/d7e4fc8b1/2c3f8e4213bf4410be123bdfef6e3a51/FLAGb0650df8f [2024-11-13 12:48:18,053 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b090047f-792a-44b9-870c-56fc146d46e6/bin/uautomizer-verify-qhAvR1uOyd/data/d7e4fc8b1/2c3f8e4213bf4410be123bdfef6e3a51 [2024-11-13 12:48:18,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:48:18,058 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:48:18,062 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:48:18,063 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:48:18,068 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:48:18,069 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:48:18" (1/1) ... [2024-11-13 12:48:18,070 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@122e0dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:48:18, skipping insertion in model container [2024-11-13 12:48:18,072 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:48:18" (1/1) ... [2024-11-13 12:48:18,298 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:48:20,679 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_b090047f-792a-44b9-870c-56fc146d46e6/sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-1.c[382357,382370] [2024-11-13 12:48:20,723 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b090047f-792a-44b9-870c-56fc146d46e6/sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-1.c[383339,383352] [2024-11-13 12:48:21,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:48:21,158 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:48:22,376 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_b090047f-792a-44b9-870c-56fc146d46e6/sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-1.c[382357,382370] [2024-11-13 12:48:22,380 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_b090047f-792a-44b9-870c-56fc146d46e6/sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-1.c[383339,383352] [2024-11-13 12:48:22,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:48:22,495 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:48:22,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:48:22 WrapperNode [2024-11-13 12:48:22,496 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:48:22,498 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:48:22,498 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:48:22,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:48:22,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:48:22" (1/1) ... [2024-11-13 12:48:22,664 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:48:22" (1/1) ... [2024-11-13 12:48:23,313 INFO L138 Inliner]: procedures = 64, calls = 72, calls flagged for inlining = 41, calls inlined = 41, statements flattened = 13105 [2024-11-13 12:48:23,315 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:48:23,316 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:48:23,316 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:48:23,316 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:48:23,329 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:48:22" (1/1) ... [2024-11-13 12:48:23,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:48:22" (1/1) ... [2024-11-13 12:48:23,394 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:48:22" (1/1) ... [2024-11-13 12:48:23,505 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 12:48:23,506 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:48:22" (1/1) ... [2024-11-13 12:48:23,506 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:48:22" (1/1) ... [2024-11-13 12:48:23,732 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:48:22" (1/1) ... [2024-11-13 12:48:23,812 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:48:22" (1/1) ... [2024-11-13 12:48:23,855 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:48:22" (1/1) ... [2024-11-13 12:48:23,888 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:48:22" (1/1) ... [2024-11-13 12:48:23,964 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:48:23,966 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:48:23,967 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:48:23,967 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:48:23,968 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:48:22" (1/1) ... [2024-11-13 12:48:23,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:48:24,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b090047f-792a-44b9-870c-56fc146d46e6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:48:24,021 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b090047f-792a-44b9-870c-56fc146d46e6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:48:24,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b090047f-792a-44b9-870c-56fc146d46e6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:48:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:48:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-13 12:48:24,068 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-13 12:48:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-13 12:48:24,068 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-13 12:48:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-13 12:48:24,069 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-13 12:48:24,069 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-13 12:48:24,069 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-13 12:48:24,070 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-13 12:48:24,070 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-13 12:48:24,070 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-13 12:48:24,070 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-13 12:48:24,070 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-13 12:48:24,070 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-13 12:48:24,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 12:48:24,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:48:24,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:48:24,313 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:48:24,316 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:48:37,508 INFO L? ?]: Removed 1747 outVars from TransFormulas that were not future-live. [2024-11-13 12:48:37,508 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:48:37,606 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:48:37,607 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-13 12:48:37,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:48:37 BoogieIcfgContainer [2024-11-13 12:48:37,607 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:48:37,612 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:48:37,614 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:48:37,620 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:48:37,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:48:18" (1/3) ... [2024-11-13 12:48:37,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a7c5a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:48:37, skipping insertion in model container [2024-11-13 12:48:37,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:48:22" (2/3) ... [2024-11-13 12:48:37,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a7c5a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:48:37, skipping insertion in model container [2024-11-13 12:48:37,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:48:37" (3/3) ... [2024-11-13 12:48:37,623 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.10.cil-1.c [2024-11-13 12:48:37,642 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:48:37,646 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label46+token_ring.10.cil-1.c that has 8 procedures, 2534 locations, 1 initial locations, 14 loop locations, and 2 error locations. [2024-11-13 12:48:37,801 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:48:37,822 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;@7f24b0f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:48:37,822 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 12:48:37,839 INFO L276 IsEmpty]: Start isEmpty. Operand has 2534 states, 2498 states have (on average 1.8422738190552441) internal successors, (4602), 2503 states have internal predecessors, (4602), 26 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-13 12:48:37,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-13 12:48:37,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:48:37,870 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, 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 12:48:37,870 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:48:37,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:37,876 INFO L85 PathProgramCache]: Analyzing trace with hash -519194938, now seen corresponding path program 1 times [2024-11-13 12:48:37,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:37,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751280406] [2024-11-13 12:48:37,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:37,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:38,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 12:48:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:38,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 12:48:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:38,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 12:48:38,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:38,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 12:48:38,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:38,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-13 12:48:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:38,781 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 12:48:38,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:38,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751280406] [2024-11-13 12:48:38,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751280406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:38,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:38,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:48:38,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895272583] [2024-11-13 12:48:38,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:38,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 12:48:38,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:38,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 12:48:38,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:48:38,836 INFO L87 Difference]: Start difference. First operand has 2534 states, 2498 states have (on average 1.8422738190552441) internal successors, (4602), 2503 states have internal predecessors, (4602), 26 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 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 12:48:41,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:48:41,798 INFO L93 Difference]: Finished difference Result 5182 states and 9506 transitions. [2024-11-13 12:48:41,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:48:41,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 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 157 [2024-11-13 12:48:41,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:48:41,839 INFO L225 Difference]: With dead ends: 5182 [2024-11-13 12:48:41,840 INFO L226 Difference]: Without dead ends: 2586 [2024-11-13 12:48:41,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:48:41,860 INFO L432 NwaCegarLoop]: 4348 mSDtfsCounter, 918 mSDsluCounter, 12453 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 16801 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:48:41,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 16801 Invalid, 936 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 12:48:41,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2586 states. [2024-11-13 12:48:42,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2586 to 2466. [2024-11-13 12:48:42,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2466 states, 2432 states have (on average 1.826891447368421) internal successors, (4443), 2435 states have internal predecessors, (4443), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-13 12:48:42,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2466 states to 2466 states and 4493 transitions. [2024-11-13 12:48:42,107 INFO L78 Accepts]: Start accepts. Automaton has 2466 states and 4493 transitions. Word has length 157 [2024-11-13 12:48:42,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:48:42,109 INFO L471 AbstractCegarLoop]: Abstraction has 2466 states and 4493 transitions. [2024-11-13 12:48:42,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 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 12:48:42,110 INFO L276 IsEmpty]: Start isEmpty. Operand 2466 states and 4493 transitions. [2024-11-13 12:48:42,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-13 12:48:42,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:48:42,123 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, 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 12:48:42,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 12:48:42,123 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:48:42,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:42,124 INFO L85 PathProgramCache]: Analyzing trace with hash -905057340, now seen corresponding path program 1 times [2024-11-13 12:48:42,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:42,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381220899] [2024-11-13 12:48:42,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:42,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:42,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 12:48:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:42,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 12:48:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:42,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 12:48:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:42,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 12:48:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:42,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-13 12:48:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:42,552 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 12:48:42,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:42,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381220899] [2024-11-13 12:48:42,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381220899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:42,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:42,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:48:42,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909901154] [2024-11-13 12:48:42,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:42,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 12:48:42,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:42,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 12:48:42,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:48:42,561 INFO L87 Difference]: Start difference. First operand 2466 states and 4493 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 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 12:48:45,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:48:45,309 INFO L93 Difference]: Finished difference Result 2917 states and 5212 transitions. [2024-11-13 12:48:45,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:48:45,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 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 157 [2024-11-13 12:48:45,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:48:45,323 INFO L225 Difference]: With dead ends: 2917 [2024-11-13 12:48:45,323 INFO L226 Difference]: Without dead ends: 2586 [2024-11-13 12:48:45,326 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 12:48:45,327 INFO L432 NwaCegarLoop]: 4278 mSDtfsCounter, 904 mSDsluCounter, 12250 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 16528 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:48:45,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 16528 Invalid, 935 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 12:48:45,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2586 states. [2024-11-13 12:48:45,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2586 to 2466. [2024-11-13 12:48:45,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2466 states, 2432 states have (on average 1.8264802631578947) internal successors, (4442), 2435 states have internal predecessors, (4442), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-13 12:48:45,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2466 states to 2466 states and 4492 transitions. [2024-11-13 12:48:45,437 INFO L78 Accepts]: Start accepts. Automaton has 2466 states and 4492 transitions. Word has length 157 [2024-11-13 12:48:45,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:48:45,438 INFO L471 AbstractCegarLoop]: Abstraction has 2466 states and 4492 transitions. [2024-11-13 12:48:45,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 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 12:48:45,438 INFO L276 IsEmpty]: Start isEmpty. Operand 2466 states and 4492 transitions. [2024-11-13 12:48:45,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-13 12:48:45,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:48:45,447 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, 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 12:48:45,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 12:48:45,447 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:48:45,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:45,448 INFO L85 PathProgramCache]: Analyzing trace with hash -749076798, now seen corresponding path program 1 times [2024-11-13 12:48:45,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:45,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411845848] [2024-11-13 12:48:45,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:45,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:45,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 12:48:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:45,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 12:48:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:45,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 12:48:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:46,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 12:48:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:46,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-13 12:48:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:46,028 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 12:48:46,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:46,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411845848] [2024-11-13 12:48:46,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411845848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:46,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:46,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:48:46,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576354093] [2024-11-13 12:48:46,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:46,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:48:46,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:46,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:48:46,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:48:46,035 INFO L87 Difference]: Start difference. First operand 2466 states and 4492 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 12:48:51,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:48:51,473 INFO L93 Difference]: Finished difference Result 3395 states and 5990 transitions. [2024-11-13 12:48:51,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 12:48:51,474 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 157 [2024-11-13 12:48:51,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:48:51,491 INFO L225 Difference]: With dead ends: 3395 [2024-11-13 12:48:51,491 INFO L226 Difference]: Without dead ends: 3068 [2024-11-13 12:48:51,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 12:48:51,496 INFO L432 NwaCegarLoop]: 4483 mSDtfsCounter, 5257 mSDsluCounter, 17629 mSDsCounter, 0 mSdLazyCounter, 3191 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5274 SdHoareTripleChecker+Valid, 22112 SdHoareTripleChecker+Invalid, 3257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:48:51,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5274 Valid, 22112 Invalid, 3257 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 3191 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-13 12:48:51,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2024-11-13 12:48:51,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 2809. [2024-11-13 12:48:51,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2809 states, 2746 states have (on average 1.7982520029133284) internal successors, (4938), 2751 states have internal predecessors, (4938), 47 states have call successors, (47), 13 states have call predecessors, (47), 14 states have return successors, (52), 46 states have call predecessors, (52), 45 states have call successors, (52) [2024-11-13 12:48:51,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2809 states to 2809 states and 5037 transitions. [2024-11-13 12:48:51,653 INFO L78 Accepts]: Start accepts. Automaton has 2809 states and 5037 transitions. Word has length 157 [2024-11-13 12:48:51,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:48:51,655 INFO L471 AbstractCegarLoop]: Abstraction has 2809 states and 5037 transitions. [2024-11-13 12:48:51,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 12:48:51,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2809 states and 5037 transitions. [2024-11-13 12:48:51,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-13 12:48:51,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:48:51,661 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, 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 12:48:51,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 12:48:51,662 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:48:51,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:51,664 INFO L85 PathProgramCache]: Analyzing trace with hash 649876804, now seen corresponding path program 1 times [2024-11-13 12:48:51,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:51,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611544752] [2024-11-13 12:48:51,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:51,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:51,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 12:48:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:51,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 12:48:51,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:52,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 12:48:52,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:52,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 12:48:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:52,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-13 12:48:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:52,140 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 12:48:52,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:52,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611544752] [2024-11-13 12:48:52,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611544752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:52,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:52,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:48:52,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868135328] [2024-11-13 12:48:52,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:52,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:48:52,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:52,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:48:52,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:48:52,143 INFO L87 Difference]: Start difference. First operand 2809 states and 5037 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 12:48:56,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:48:56,745 INFO L93 Difference]: Finished difference Result 4578 states and 7865 transitions. [2024-11-13 12:48:56,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 12:48:56,746 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 157 [2024-11-13 12:48:56,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:48:56,786 INFO L225 Difference]: With dead ends: 4578 [2024-11-13 12:48:56,790 INFO L226 Difference]: Without dead ends: 3910 [2024-11-13 12:48:56,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 12:48:56,801 INFO L432 NwaCegarLoop]: 4427 mSDtfsCounter, 5298 mSDsluCounter, 17554 mSDsCounter, 0 mSdLazyCounter, 2882 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5315 SdHoareTripleChecker+Valid, 21981 SdHoareTripleChecker+Invalid, 2956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-13 12:48:56,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5315 Valid, 21981 Invalid, 2956 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 2882 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-13 12:48:56,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3910 states. [2024-11-13 12:48:57,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3910 to 3443. [2024-11-13 12:48:57,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3443 states, 3328 states have (on average 1.7545072115384615) internal successors, (5839), 3335 states have internal predecessors, (5839), 85 states have call successors, (85), 25 states have call predecessors, (85), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2024-11-13 12:48:57,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3443 states to 3443 states and 6024 transitions. [2024-11-13 12:48:57,039 INFO L78 Accepts]: Start accepts. Automaton has 3443 states and 6024 transitions. Word has length 157 [2024-11-13 12:48:57,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:48:57,040 INFO L471 AbstractCegarLoop]: Abstraction has 3443 states and 6024 transitions. [2024-11-13 12:48:57,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 12:48:57,041 INFO L276 IsEmpty]: Start isEmpty. Operand 3443 states and 6024 transitions. [2024-11-13 12:48:57,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-13 12:48:57,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:48:57,048 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, 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 12:48:57,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 12:48:57,049 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:48:57,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:57,052 INFO L85 PathProgramCache]: Analyzing trace with hash -967563646, now seen corresponding path program 1 times [2024-11-13 12:48:57,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:57,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874105145] [2024-11-13 12:48:57,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:57,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:57,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 12:48:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:57,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 12:48:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:57,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 12:48:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:57,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 12:48:57,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:57,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-13 12:48:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:57,476 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 12:48:57,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:57,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874105145] [2024-11-13 12:48:57,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874105145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:57,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:57,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:48:57,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289987937] [2024-11-13 12:48:57,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:57,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:48:57,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:57,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:48:57,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:48:57,483 INFO L87 Difference]: Start difference. First operand 3443 states and 6024 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 12:49:02,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:49:02,516 INFO L93 Difference]: Finished difference Result 6894 states and 11524 transitions. [2024-11-13 12:49:02,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 12:49:02,517 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 157 [2024-11-13 12:49:02,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:49:02,543 INFO L225 Difference]: With dead ends: 6894 [2024-11-13 12:49:02,543 INFO L226 Difference]: Without dead ends: 5592 [2024-11-13 12:49:02,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 12:49:02,551 INFO L432 NwaCegarLoop]: 4477 mSDtfsCounter, 5257 mSDsluCounter, 17629 mSDsCounter, 0 mSdLazyCounter, 3166 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5274 SdHoareTripleChecker+Valid, 22106 SdHoareTripleChecker+Invalid, 3234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-13 12:49:02,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5274 Valid, 22106 Invalid, 3234 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 3166 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-13 12:49:02,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5592 states. [2024-11-13 12:49:02,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5592 to 4713. [2024-11-13 12:49:02,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4713 states, 4494 states have (on average 1.7007120605251447) internal successors, (7643), 4505 states have internal predecessors, (7643), 161 states have call successors, (161), 49 states have call predecessors, (161), 56 states have return successors, (202), 166 states have call predecessors, (202), 159 states have call successors, (202) [2024-11-13 12:49:02,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4713 states to 4713 states and 8006 transitions. [2024-11-13 12:49:02,852 INFO L78 Accepts]: Start accepts. Automaton has 4713 states and 8006 transitions. Word has length 157 [2024-11-13 12:49:02,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:49:02,852 INFO L471 AbstractCegarLoop]: Abstraction has 4713 states and 8006 transitions. [2024-11-13 12:49:02,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 12:49:02,854 INFO L276 IsEmpty]: Start isEmpty. Operand 4713 states and 8006 transitions. [2024-11-13 12:49:02,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-13 12:49:02,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:49:02,859 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, 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 12:49:02,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 12:49:02,860 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:49:02,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:49:02,860 INFO L85 PathProgramCache]: Analyzing trace with hash -604097148, now seen corresponding path program 1 times [2024-11-13 12:49:02,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:49:02,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721337294] [2024-11-13 12:49:02,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:49:02,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:49:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:03,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 12:49:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:03,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 12:49:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:03,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 12:49:03,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:03,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 12:49:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:03,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-13 12:49:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:03,243 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 12:49:03,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:49:03,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721337294] [2024-11-13 12:49:03,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721337294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:49:03,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:49:03,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:49:03,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924828667] [2024-11-13 12:49:03,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:49:03,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:49:03,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:49:03,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:49:03,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:49:03,250 INFO L87 Difference]: Start difference. First operand 4713 states and 8006 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 12:49:07,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:49:07,867 INFO L93 Difference]: Finished difference Result 11524 states and 18856 transitions. [2024-11-13 12:49:07,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 12:49:07,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 157 [2024-11-13 12:49:07,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:49:07,908 INFO L225 Difference]: With dead ends: 11524 [2024-11-13 12:49:07,908 INFO L226 Difference]: Without dead ends: 8952 [2024-11-13 12:49:07,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 12:49:07,920 INFO L432 NwaCegarLoop]: 4477 mSDtfsCounter, 5257 mSDsluCounter, 17629 mSDsCounter, 0 mSdLazyCounter, 3157 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5274 SdHoareTripleChecker+Valid, 22106 SdHoareTripleChecker+Invalid, 3225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:49:07,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5274 Valid, 22106 Invalid, 3225 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 3157 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-13 12:49:07,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8952 states. [2024-11-13 12:49:08,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8952 to 7259. [2024-11-13 12:49:08,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7259 states, 6832 states have (on average 1.647980093676815) internal successors, (11259), 6851 states have internal predecessors, (11259), 313 states have call successors, (313), 97 states have call predecessors, (313), 112 states have return successors, (424), 326 states have call predecessors, (424), 311 states have call successors, (424) [2024-11-13 12:49:08,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7259 states to 7259 states and 11996 transitions. [2024-11-13 12:49:08,363 INFO L78 Accepts]: Start accepts. Automaton has 7259 states and 11996 transitions. Word has length 157 [2024-11-13 12:49:08,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:49:08,363 INFO L471 AbstractCegarLoop]: Abstraction has 7259 states and 11996 transitions. [2024-11-13 12:49:08,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 12:49:08,365 INFO L276 IsEmpty]: Start isEmpty. Operand 7259 states and 11996 transitions. [2024-11-13 12:49:08,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-13 12:49:08,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:49:08,370 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, 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 12:49:08,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 12:49:08,371 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:49:08,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:49:08,371 INFO L85 PathProgramCache]: Analyzing trace with hash -315277758, now seen corresponding path program 1 times [2024-11-13 12:49:08,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:49:08,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409866763] [2024-11-13 12:49:08,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:49:08,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:49:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:08,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 12:49:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:08,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 12:49:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:08,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 12:49:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:08,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 12:49:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:08,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-13 12:49:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:08,681 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 12:49:08,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:49:08,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409866763] [2024-11-13 12:49:08,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409866763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:49:08,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:49:08,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:49:08,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015538622] [2024-11-13 12:49:08,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:49:08,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:49:08,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:49:08,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:49:08,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:49:08,684 INFO L87 Difference]: Start difference. First operand 7259 states and 11996 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 12:49:14,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:49:14,123 INFO L93 Difference]: Finished difference Result 20782 states and 33576 transitions. [2024-11-13 12:49:14,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 12:49:14,124 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 157 [2024-11-13 12:49:14,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:49:14,195 INFO L225 Difference]: With dead ends: 20782 [2024-11-13 12:49:14,195 INFO L226 Difference]: Without dead ends: 15664 [2024-11-13 12:49:14,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 12:49:14,215 INFO L432 NwaCegarLoop]: 4477 mSDtfsCounter, 5257 mSDsluCounter, 17629 mSDsCounter, 0 mSdLazyCounter, 3148 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5274 SdHoareTripleChecker+Valid, 22106 SdHoareTripleChecker+Invalid, 3216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-13 12:49:14,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5274 Valid, 22106 Invalid, 3216 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 3148 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-13 12:49:14,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15664 states. [2024-11-13 12:49:15,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15664 to 12365. [2024-11-13 12:49:15,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12365 states, 11522 states have (on average 1.6065787189724006) internal successors, (18511), 11557 states have internal predecessors, (18511), 617 states have call successors, (617), 193 states have call predecessors, (617), 224 states have return successors, (922), 646 states have call predecessors, (922), 615 states have call successors, (922) [2024-11-13 12:49:15,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12365 states to 12365 states and 20050 transitions. [2024-11-13 12:49:15,113 INFO L78 Accepts]: Start accepts. Automaton has 12365 states and 20050 transitions. Word has length 157 [2024-11-13 12:49:15,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:49:15,114 INFO L471 AbstractCegarLoop]: Abstraction has 12365 states and 20050 transitions. [2024-11-13 12:49:15,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 12:49:15,114 INFO L276 IsEmpty]: Start isEmpty. Operand 12365 states and 20050 transitions. [2024-11-13 12:49:15,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-13 12:49:15,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:49:15,128 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, 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 12:49:15,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 12:49:15,128 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:49:15,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:49:15,129 INFO L85 PathProgramCache]: Analyzing trace with hash -860150332, now seen corresponding path program 1 times [2024-11-13 12:49:15,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:49:15,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467721891] [2024-11-13 12:49:15,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:49:15,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:49:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:15,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 12:49:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:15,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 12:49:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:15,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 12:49:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:15,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 12:49:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:15,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-13 12:49:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:15,501 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 12:49:15,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:49:15,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467721891] [2024-11-13 12:49:15,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467721891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:49:15,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:49:15,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:49:15,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863116258] [2024-11-13 12:49:15,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:49:15,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:49:15,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:49:15,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:49:15,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:49:15,503 INFO L87 Difference]: Start difference. First operand 12365 states and 20050 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 12:49:21,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:49:21,797 INFO L93 Difference]: Finished difference Result 39296 states and 63204 transitions. [2024-11-13 12:49:21,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 12:49:21,797 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 157 [2024-11-13 12:49:21,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:49:21,939 INFO L225 Difference]: With dead ends: 39296 [2024-11-13 12:49:21,939 INFO L226 Difference]: Without dead ends: 29072 [2024-11-13 12:49:21,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 12:49:21,981 INFO L432 NwaCegarLoop]: 4478 mSDtfsCounter, 5257 mSDsluCounter, 17629 mSDsCounter, 0 mSdLazyCounter, 3144 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5274 SdHoareTripleChecker+Valid, 22107 SdHoareTripleChecker+Invalid, 3212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:49:21,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5274 Valid, 22107 Invalid, 3212 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 3144 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-13 12:49:22,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29072 states. [2024-11-13 12:49:23,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29072 to 22607. [2024-11-13 12:49:23,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22607 states, 20932 states have (on average 1.5793521880374546) internal successors, (33059), 20999 states have internal predecessors, (33059), 1225 states have call successors, (1225), 385 states have call predecessors, (1225), 448 states have return successors, (2080), 1286 states have call predecessors, (2080), 1223 states have call successors, (2080) [2024-11-13 12:49:23,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22607 states to 22607 states and 36364 transitions. [2024-11-13 12:49:23,628 INFO L78 Accepts]: Start accepts. Automaton has 22607 states and 36364 transitions. Word has length 157 [2024-11-13 12:49:23,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:49:23,628 INFO L471 AbstractCegarLoop]: Abstraction has 22607 states and 36364 transitions. [2024-11-13 12:49:23,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 12:49:23,629 INFO L276 IsEmpty]: Start isEmpty. Operand 22607 states and 36364 transitions. [2024-11-13 12:49:23,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-13 12:49:23,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:49:23,648 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, 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 12:49:23,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 12:49:23,648 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:49:23,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:49:23,649 INFO L85 PathProgramCache]: Analyzing trace with hash -184990206, now seen corresponding path program 1 times [2024-11-13 12:49:23,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:49:23,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627696336] [2024-11-13 12:49:23,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:49:23,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:49:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:23,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 12:49:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:24,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 12:49:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:24,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 12:49:24,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:24,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 12:49:24,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:24,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-13 12:49:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:24,224 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 12:49:24,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:49:24,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627696336] [2024-11-13 12:49:24,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627696336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:49:24,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:49:24,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:49:24,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184645799] [2024-11-13 12:49:24,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:49:24,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:49:24,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:49:24,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:49:24,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:49:24,230 INFO L87 Difference]: Start difference. First operand 22607 states and 36364 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 12:49:28,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:49:28,956 INFO L93 Difference]: Finished difference Result 49993 states and 81071 transitions. [2024-11-13 12:49:28,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 12:49:28,958 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 157 [2024-11-13 12:49:28,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:49:29,082 INFO L225 Difference]: With dead ends: 49993 [2024-11-13 12:49:29,082 INFO L226 Difference]: Without dead ends: 29525 [2024-11-13 12:49:29,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-13 12:49:29,143 INFO L432 NwaCegarLoop]: 4237 mSDtfsCounter, 4953 mSDsluCounter, 16712 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4971 SdHoareTripleChecker+Valid, 20949 SdHoareTripleChecker+Invalid, 1608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:49:29,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4971 Valid, 20949 Invalid, 1608 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 1543 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 12:49:29,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29525 states. [2024-11-13 12:49:30,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29525 to 22607. [2024-11-13 12:49:30,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22607 states, 20932 states have (on average 1.5762468947066692) internal successors, (32994), 20999 states have internal predecessors, (32994), 1225 states have call successors, (1225), 385 states have call predecessors, (1225), 448 states have return successors, (2080), 1286 states have call predecessors, (2080), 1223 states have call successors, (2080) [2024-11-13 12:49:30,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22607 states to 22607 states and 36299 transitions. [2024-11-13 12:49:30,354 INFO L78 Accepts]: Start accepts. Automaton has 22607 states and 36299 transitions. Word has length 157 [2024-11-13 12:49:30,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:49:30,354 INFO L471 AbstractCegarLoop]: Abstraction has 22607 states and 36299 transitions. [2024-11-13 12:49:30,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 12:49:30,355 INFO L276 IsEmpty]: Start isEmpty. Operand 22607 states and 36299 transitions. [2024-11-13 12:49:30,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-13 12:49:30,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:49:30,369 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, 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 12:49:30,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 12:49:30,369 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:49:30,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:49:30,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1133042172, now seen corresponding path program 1 times [2024-11-13 12:49:30,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:49:30,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232103712] [2024-11-13 12:49:30,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:49:30,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:49:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:30,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 12:49:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:30,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 12:49:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:30,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 12:49:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:30,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 12:49:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:30,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-13 12:49:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:30,667 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 12:49:30,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:49:30,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232103712] [2024-11-13 12:49:30,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232103712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:49:30,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:49:30,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:49:30,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073075327] [2024-11-13 12:49:30,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:49:30,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:49:30,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:49:30,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:49:30,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:49:30,669 INFO L87 Difference]: Start difference. First operand 22607 states and 36299 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 12:49:37,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:49:37,338 INFO L93 Difference]: Finished difference Result 76195 states and 122484 transitions. [2024-11-13 12:49:37,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 12:49:37,339 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 157 [2024-11-13 12:49:37,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:49:37,643 INFO L225 Difference]: With dead ends: 76195 [2024-11-13 12:49:37,643 INFO L226 Difference]: Without dead ends: 55729 [2024-11-13 12:49:37,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 12:49:37,749 INFO L432 NwaCegarLoop]: 4477 mSDtfsCounter, 5289 mSDsluCounter, 17629 mSDsCounter, 0 mSdLazyCounter, 3019 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5306 SdHoareTripleChecker+Valid, 22106 SdHoareTripleChecker+Invalid, 3087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:49:37,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5306 Valid, 22106 Invalid, 3087 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 3019 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-13 12:49:37,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55729 states. [2024-11-13 12:49:40,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55729 to 43280. [2024-11-13 12:49:40,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43280 states, 39941 states have (on average 1.5600260384066498) internal successors, (62309), 40072 states have internal predecessors, (62309), 2441 states have call successors, (2441), 769 states have call predecessors, (2441), 896 states have return successors, (4882), 2566 states have call predecessors, (4882), 2439 states have call successors, (4882) [2024-11-13 12:49:41,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43280 states to 43280 states and 69632 transitions. [2024-11-13 12:49:41,082 INFO L78 Accepts]: Start accepts. Automaton has 43280 states and 69632 transitions. Word has length 157 [2024-11-13 12:49:41,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:49:41,082 INFO L471 AbstractCegarLoop]: Abstraction has 43280 states and 69632 transitions. [2024-11-13 12:49:41,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 12:49:41,083 INFO L276 IsEmpty]: Start isEmpty. Operand 43280 states and 69632 transitions. [2024-11-13 12:49:41,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-13 12:49:41,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:49:41,110 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, 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 12:49:41,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 12:49:41,110 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:49:41,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:49:41,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1567547770, now seen corresponding path program 1 times [2024-11-13 12:49:41,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:49:41,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122022078] [2024-11-13 12:49:41,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:49:41,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:49:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:41,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 12:49:41,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:41,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 12:49:41,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:41,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 12:49:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:41,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 12:49:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:41,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-13 12:49:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:41,473 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 12:49:41,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:49:41,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122022078] [2024-11-13 12:49:41,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122022078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:49:41,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:49:41,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:49:41,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771337295] [2024-11-13 12:49:41,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:49:41,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:49:41,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:49:41,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:49:41,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:49:41,475 INFO L87 Difference]: Start difference. First operand 43280 states and 69632 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 12:49:53,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:49:53,235 INFO L93 Difference]: Finished difference Result 150246 states and 243653 transitions. [2024-11-13 12:49:53,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 12:49:53,236 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 157 [2024-11-13 12:49:53,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:49:53,765 INFO L225 Difference]: With dead ends: 150246 [2024-11-13 12:49:53,765 INFO L226 Difference]: Without dead ends: 109107 [2024-11-13 12:49:53,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 12:49:53,948 INFO L432 NwaCegarLoop]: 4428 mSDtfsCounter, 5315 mSDsluCounter, 17554 mSDsCounter, 0 mSdLazyCounter, 2782 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5332 SdHoareTripleChecker+Valid, 21982 SdHoareTripleChecker+Invalid, 2856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-13 12:49:53,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5332 Valid, 21982 Invalid, 2856 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 2782 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-13 12:49:54,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109107 states. [2024-11-13 12:49:59,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109107 to 84754. [2024-11-13 12:49:59,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84754 states, 78087 states have (on average 1.5512313189135196) internal successors, (121131), 78346 states have internal predecessors, (121131), 4873 states have call successors, (4873), 1537 states have call predecessors, (4873), 1792 states have return successors, (11944), 5126 states have call predecessors, (11944), 4871 states have call successors, (11944) [2024-11-13 12:49:59,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84754 states to 84754 states and 137948 transitions. [2024-11-13 12:49:59,597 INFO L78 Accepts]: Start accepts. Automaton has 84754 states and 137948 transitions. Word has length 157 [2024-11-13 12:49:59,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:49:59,597 INFO L471 AbstractCegarLoop]: Abstraction has 84754 states and 137948 transitions. [2024-11-13 12:49:59,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 12:49:59,597 INFO L276 IsEmpty]: Start isEmpty. Operand 84754 states and 137948 transitions. [2024-11-13 12:49:59,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-13 12:49:59,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:49:59,647 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, 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 12:49:59,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 12:49:59,647 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:49:59,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:49:59,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1997206076, now seen corresponding path program 1 times [2024-11-13 12:49:59,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:49:59,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296486510] [2024-11-13 12:49:59,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:49:59,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:49:59,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:50:00,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 12:50:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:50:00,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 12:50:00,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:50:00,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 12:50:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:50:00,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 12:50:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:50:00,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-13 12:50:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:50:00,268 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 12:50:00,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:50:00,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296486510] [2024-11-13 12:50:00,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296486510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:50:00,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:50:00,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:50:00,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041846209] [2024-11-13 12:50:00,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:50:00,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:50:00,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:50:00,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:50:00,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:50:00,271 INFO L87 Difference]: Start difference. First operand 84754 states and 137948 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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)