./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/transmitter.11.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1976554f-163c-4891-a492-5d93596e0e26/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1976554f-163c-4891-a492-5d93596e0e26/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1976554f-163c-4891-a492-5d93596e0e26/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1976554f-163c-4891-a492-5d93596e0e26/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/systemc/transmitter.11.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1976554f-163c-4891-a492-5d93596e0e26/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1976554f-163c-4891-a492-5d93596e0e26/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 940a677bfde7dbbc79e036121bd0ec6fd3518c0f58a02d336e5d42fafb098792 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:17:53,083 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:17:53,165 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1976554f-163c-4891-a492-5d93596e0e26/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:17:53,179 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:17:53,179 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:17:53,228 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:17:53,228 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:17:53,229 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:17:53,229 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:17:53,229 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:17:53,229 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:17:53,230 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:17:53,231 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:17:53,231 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:17:53,233 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:17:53,233 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:17:53,234 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:17:53,234 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:17:53,234 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:17:53,234 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:17:53,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:17:53,235 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:17:53,235 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:17:53,235 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:17:53,235 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:17:53,235 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:17:53,235 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:17:53,235 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:17:53,236 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:17:53,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:17:53,236 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:17:53,236 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:17:53,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:17:53,237 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:17:53,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:17:53,237 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:17:53,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:17:53,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:17:53,237 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:17:53,237 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:17:53,238 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:17:53,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:17:53,238 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:17:53,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:17:53,238 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:17:53,238 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:17:53,239 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:17:53,239 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:17:53,239 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_1976554f-163c-4891-a492-5d93596e0e26/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 940a677bfde7dbbc79e036121bd0ec6fd3518c0f58a02d336e5d42fafb098792 [2024-11-28 04:17:53,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:17:53,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:17:53,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:17:53,648 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:17:53,648 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:17:53,650 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1976554f-163c-4891-a492-5d93596e0e26/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/systemc/transmitter.11.cil.c [2024-11-28 04:17:57,301 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1976554f-163c-4891-a492-5d93596e0e26/bin/uautomizer-verify-aQ6SnzHsRB/data/51cf4585e/4e64c615f1be435da57c47e4a22094d4/FLAGc0bf9b412 [2024-11-28 04:17:57,787 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:17:57,788 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1976554f-163c-4891-a492-5d93596e0e26/sv-benchmarks/c/systemc/transmitter.11.cil.c [2024-11-28 04:17:57,810 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1976554f-163c-4891-a492-5d93596e0e26/bin/uautomizer-verify-aQ6SnzHsRB/data/51cf4585e/4e64c615f1be435da57c47e4a22094d4/FLAGc0bf9b412 [2024-11-28 04:17:57,833 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1976554f-163c-4891-a492-5d93596e0e26/bin/uautomizer-verify-aQ6SnzHsRB/data/51cf4585e/4e64c615f1be435da57c47e4a22094d4 [2024-11-28 04:17:57,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:17:57,837 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:17:57,839 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:17:57,839 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:17:57,844 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:17:57,845 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:17:57" (1/1) ... [2024-11-28 04:17:57,845 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3915253d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:57, skipping insertion in model container [2024-11-28 04:17:57,846 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:17:57" (1/1) ... [2024-11-28 04:17:57,896 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:17:58,075 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_1976554f-163c-4891-a492-5d93596e0e26/sv-benchmarks/c/systemc/transmitter.11.cil.c[706,719] [2024-11-28 04:17:58,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:17:58,296 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:17:58,305 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_1976554f-163c-4891-a492-5d93596e0e26/sv-benchmarks/c/systemc/transmitter.11.cil.c[706,719] [2024-11-28 04:17:58,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:17:58,406 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:17:58,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:58 WrapperNode [2024-11-28 04:17:58,411 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:17:58,413 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:17:58,413 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:17:58,413 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:17:58,425 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:58" (1/1) ... [2024-11-28 04:17:58,445 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:58" (1/1) ... [2024-11-28 04:17:58,519 INFO L138 Inliner]: procedures = 50, calls = 63, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 785 [2024-11-28 04:17:58,520 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:17:58,520 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:17:58,520 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:17:58,521 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:17:58,529 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:58" (1/1) ... [2024-11-28 04:17:58,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:58" (1/1) ... [2024-11-28 04:17:58,534 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:58" (1/1) ... [2024-11-28 04:17:58,568 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:17:58,568 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:58" (1/1) ... [2024-11-28 04:17:58,568 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:58" (1/1) ... [2024-11-28 04:17:58,584 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:58" (1/1) ... [2024-11-28 04:17:58,585 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:58" (1/1) ... [2024-11-28 04:17:58,613 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:58" (1/1) ... [2024-11-28 04:17:58,615 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:58" (1/1) ... [2024-11-28 04:17:58,621 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:58" (1/1) ... [2024-11-28 04:17:58,634 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:17:58,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:17:58,635 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:17:58,635 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:17:58,640 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:58" (1/1) ... [2024-11-28 04:17:58,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:17:58,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1976554f-163c-4891-a492-5d93596e0e26/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:17:58,683 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1976554f-163c-4891-a492-5d93596e0e26/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:17:58,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1976554f-163c-4891-a492-5d93596e0e26/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:17:58,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:17:58,723 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-28 04:17:58,723 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-28 04:17:58,724 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-28 04:17:58,724 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-28 04:17:58,724 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-28 04:17:58,724 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-28 04:17:58,724 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-28 04:17:58,724 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-28 04:17:58,724 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-28 04:17:58,724 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-28 04:17:58,724 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-28 04:17:58,725 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-28 04:17:58,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:17:58,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:17:58,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:17:58,903 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:17:58,905 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:18:00,313 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-11-28 04:18:00,314 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:18:00,342 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:18:00,342 INFO L312 CfgBuilder]: Removed 30 assume(true) statements. [2024-11-28 04:18:00,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:18:00 BoogieIcfgContainer [2024-11-28 04:18:00,343 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:18:00,349 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:18:00,349 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:18:00,357 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:18:00,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:17:57" (1/3) ... [2024-11-28 04:18:00,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338fca9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:18:00, skipping insertion in model container [2024-11-28 04:18:00,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:17:58" (2/3) ... [2024-11-28 04:18:00,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338fca9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:18:00, skipping insertion in model container [2024-11-28 04:18:00,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:18:00" (3/3) ... [2024-11-28 04:18:00,360 INFO L128 eAbstractionObserver]: Analyzing ICFG transmitter.11.cil.c [2024-11-28 04:18:00,380 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:18:00,385 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG transmitter.11.cil.c that has 7 procedures, 350 locations, 1 initial locations, 15 loop locations, and 1 error locations. [2024-11-28 04:18:00,497 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:18:00,515 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;@602e7854, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:18:00,515 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:18:00,522 INFO L276 IsEmpty]: Start isEmpty. Operand has 350 states, 319 states have (on average 1.6614420062695925) internal successors, (530), 320 states have internal predecessors, (530), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 04:18:00,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 04:18:00,552 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:00,553 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:00,553 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:00,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:00,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1794781903, now seen corresponding path program 1 times [2024-11-28 04:18:00,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:18:00,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864120202] [2024-11-28 04:18:00,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:00,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:18:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:01,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:18:01,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:18:01,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864120202] [2024-11-28 04:18:01,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864120202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:01,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:01,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:18:01,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948346323] [2024-11-28 04:18:01,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:01,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:18:01,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:18:01,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:18:01,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:18:01,366 INFO L87 Difference]: Start difference. First operand has 350 states, 319 states have (on average 1.6614420062695925) internal successors, (530), 320 states have internal predecessors, (530), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:01,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:01,520 INFO L93 Difference]: Finished difference Result 689 states and 1139 transitions. [2024-11-28 04:18:01,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:18:01,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 173 [2024-11-28 04:18:01,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:01,538 INFO L225 Difference]: With dead ends: 689 [2024-11-28 04:18:01,538 INFO L226 Difference]: Without dead ends: 345 [2024-11-28 04:18:01,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:18:01,556 INFO L435 NwaCegarLoop]: 544 mSDtfsCounter, 536 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:01,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 544 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:18:01,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-28 04:18:01,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2024-11-28 04:18:01,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 314 states have (on average 1.570063694267516) internal successors, (493), 315 states have internal predecessors, (493), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 04:18:01,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 541 transitions. [2024-11-28 04:18:01,654 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 541 transitions. Word has length 173 [2024-11-28 04:18:01,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:01,656 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 541 transitions. [2024-11-28 04:18:01,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:01,656 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 541 transitions. [2024-11-28 04:18:01,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 04:18:01,664 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:01,669 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:01,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:18:01,669 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:01,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:01,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1224510097, now seen corresponding path program 1 times [2024-11-28 04:18:01,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:18:01,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793803156] [2024-11-28 04:18:01,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:01,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:18:01,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:02,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:18:02,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:18:02,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793803156] [2024-11-28 04:18:02,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793803156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:02,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:02,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:18:02,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120594996] [2024-11-28 04:18:02,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:02,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:18:02,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:18:02,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:18:02,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:18:02,307 INFO L87 Difference]: Start difference. First operand 345 states and 541 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:03,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:03,636 INFO L93 Difference]: Finished difference Result 1039 states and 1659 transitions. [2024-11-28 04:18:03,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:18:03,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 173 [2024-11-28 04:18:03,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:03,646 INFO L225 Difference]: With dead ends: 1039 [2024-11-28 04:18:03,647 INFO L226 Difference]: Without dead ends: 713 [2024-11-28 04:18:03,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:18:03,651 INFO L435 NwaCegarLoop]: 416 mSDtfsCounter, 1042 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:03,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1060 Valid, 1477 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:18:03,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-11-28 04:18:03,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 686. [2024-11-28 04:18:03,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 629 states have (on average 1.5802861685214626) internal successors, (994), 631 states have internal predecessors, (994), 43 states have call successors, (43), 12 states have call predecessors, (43), 13 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2024-11-28 04:18:03,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1081 transitions. [2024-11-28 04:18:03,741 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1081 transitions. Word has length 173 [2024-11-28 04:18:03,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:03,741 INFO L471 AbstractCegarLoop]: Abstraction has 686 states and 1081 transitions. [2024-11-28 04:18:03,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:03,742 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1081 transitions. [2024-11-28 04:18:03,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 04:18:03,752 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:03,753 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:03,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:18:03,753 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:03,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:03,754 INFO L85 PathProgramCache]: Analyzing trace with hash -689200238, now seen corresponding path program 1 times [2024-11-28 04:18:03,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:18:03,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384305985] [2024-11-28 04:18:03,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:03,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:18:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:04,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:18:04,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:18:04,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384305985] [2024-11-28 04:18:04,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384305985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:04,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:04,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:18:04,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11174994] [2024-11-28 04:18:04,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:04,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:18:04,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:18:04,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:18:04,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:18:04,297 INFO L87 Difference]: Start difference. First operand 686 states and 1081 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:06,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:06,184 INFO L93 Difference]: Finished difference Result 1873 states and 2981 transitions. [2024-11-28 04:18:06,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:18:06,185 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 173 [2024-11-28 04:18:06,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:06,199 INFO L225 Difference]: With dead ends: 1873 [2024-11-28 04:18:06,200 INFO L226 Difference]: Without dead ends: 1206 [2024-11-28 04:18:06,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:18:06,203 INFO L435 NwaCegarLoop]: 712 mSDtfsCounter, 1164 mSDsluCounter, 2149 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 2861 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:06,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 2861 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 04:18:06,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2024-11-28 04:18:06,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1003. [2024-11-28 04:18:06,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 920 states have (on average 1.5728260869565218) internal successors, (1447), 923 states have internal predecessors, (1447), 62 states have call successors, (62), 18 states have call predecessors, (62), 20 states have return successors, (66), 63 states have call predecessors, (66), 62 states have call successors, (66) [2024-11-28 04:18:06,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1575 transitions. [2024-11-28 04:18:06,325 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1575 transitions. Word has length 173 [2024-11-28 04:18:06,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:06,325 INFO L471 AbstractCegarLoop]: Abstraction has 1003 states and 1575 transitions. [2024-11-28 04:18:06,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:06,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1575 transitions. [2024-11-28 04:18:06,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 04:18:06,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:06,332 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:06,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:18:06,332 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:06,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:06,337 INFO L85 PathProgramCache]: Analyzing trace with hash 757380628, now seen corresponding path program 1 times [2024-11-28 04:18:06,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:18:06,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003086428] [2024-11-28 04:18:06,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:06,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:18:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:06,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:18:06,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:18:06,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003086428] [2024-11-28 04:18:06,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003086428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:06,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:06,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:18:06,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25109795] [2024-11-28 04:18:06,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:06,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:18:06,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:18:06,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:18:06,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:18:06,717 INFO L87 Difference]: Start difference. First operand 1003 states and 1575 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:08,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:08,544 INFO L93 Difference]: Finished difference Result 2885 states and 4584 transitions. [2024-11-28 04:18:08,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:18:08,544 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 173 [2024-11-28 04:18:08,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:08,558 INFO L225 Difference]: With dead ends: 2885 [2024-11-28 04:18:08,558 INFO L226 Difference]: Without dead ends: 1901 [2024-11-28 04:18:08,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:18:08,563 INFO L435 NwaCegarLoop]: 708 mSDtfsCounter, 1159 mSDsluCounter, 2137 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 2845 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:08,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 2845 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:18:08,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1901 states. [2024-11-28 04:18:08,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1901 to 1680. [2024-11-28 04:18:08,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1680 states, 1543 states have (on average 1.576150356448477) internal successors, (2432), 1550 states have internal predecessors, (2432), 100 states have call successors, (100), 30 states have call predecessors, (100), 36 states have return successors, (116), 103 states have call predecessors, (116), 100 states have call successors, (116) [2024-11-28 04:18:08,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2648 transitions. [2024-11-28 04:18:08,721 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2648 transitions. Word has length 173 [2024-11-28 04:18:08,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:08,722 INFO L471 AbstractCegarLoop]: Abstraction has 1680 states and 2648 transitions. [2024-11-28 04:18:08,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:08,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2648 transitions. [2024-11-28 04:18:08,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 04:18:08,728 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:08,728 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:08,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:18:08,729 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:08,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:08,731 INFO L85 PathProgramCache]: Analyzing trace with hash -165786798, now seen corresponding path program 1 times [2024-11-28 04:18:08,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:18:08,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129806478] [2024-11-28 04:18:08,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:08,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:18:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:09,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:18:09,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:18:09,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129806478] [2024-11-28 04:18:09,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129806478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:09,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:09,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:18:09,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140931013] [2024-11-28 04:18:09,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:09,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:18:09,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:18:09,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:18:09,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:18:09,042 INFO L87 Difference]: Start difference. First operand 1680 states and 2648 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:10,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:10,881 INFO L93 Difference]: Finished difference Result 5076 states and 8127 transitions. [2024-11-28 04:18:10,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:18:10,882 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 173 [2024-11-28 04:18:10,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:10,906 INFO L225 Difference]: With dead ends: 5076 [2024-11-28 04:18:10,906 INFO L226 Difference]: Without dead ends: 3415 [2024-11-28 04:18:10,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:18:10,914 INFO L435 NwaCegarLoop]: 705 mSDtfsCounter, 1154 mSDsluCounter, 2128 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 2833 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:10,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1172 Valid, 2833 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:18:10,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3415 states. [2024-11-28 04:18:11,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3415 to 3157. [2024-11-28 04:18:11,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3157 states, 2906 states have (on average 1.5925671025464556) internal successors, (4628), 2927 states have internal predecessors, (4628), 176 states have call successors, (176), 54 states have call predecessors, (176), 74 states have return successors, (240), 183 states have call predecessors, (240), 176 states have call successors, (240) [2024-11-28 04:18:11,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3157 states to 3157 states and 5044 transitions. [2024-11-28 04:18:11,189 INFO L78 Accepts]: Start accepts. Automaton has 3157 states and 5044 transitions. Word has length 173 [2024-11-28 04:18:11,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:11,190 INFO L471 AbstractCegarLoop]: Abstraction has 3157 states and 5044 transitions. [2024-11-28 04:18:11,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:11,191 INFO L276 IsEmpty]: Start isEmpty. Operand 3157 states and 5044 transitions. [2024-11-28 04:18:11,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 04:18:11,198 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:11,198 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:11,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:18:11,199 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:11,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:11,200 INFO L85 PathProgramCache]: Analyzing trace with hash 220075604, now seen corresponding path program 1 times [2024-11-28 04:18:11,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:18:11,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105814511] [2024-11-28 04:18:11,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:11,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:18:11,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:11,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:18:11,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:18:11,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105814511] [2024-11-28 04:18:11,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105814511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:11,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:11,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:18:11,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723874534] [2024-11-28 04:18:11,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:11,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:18:11,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:18:11,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:18:11,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:18:11,555 INFO L87 Difference]: Start difference. First operand 3157 states and 5044 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:13,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:13,489 INFO L93 Difference]: Finished difference Result 9931 states and 16201 transitions. [2024-11-28 04:18:13,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:18:13,490 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 173 [2024-11-28 04:18:13,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:13,534 INFO L225 Difference]: With dead ends: 9931 [2024-11-28 04:18:13,535 INFO L226 Difference]: Without dead ends: 6793 [2024-11-28 04:18:13,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:18:13,548 INFO L435 NwaCegarLoop]: 702 mSDtfsCounter, 1149 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 2821 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:13,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 2821 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:18:13,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6793 states. [2024-11-28 04:18:13,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6793 to 6462. [2024-11-28 04:18:13,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6462 states, 5965 states have (on average 1.6201173512154232) internal successors, (9664), 6032 states have internal predecessors, (9664), 328 states have call successors, (328), 102 states have call predecessors, (328), 168 states have return successors, (584), 343 states have call predecessors, (584), 328 states have call successors, (584) [2024-11-28 04:18:13,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6462 states to 6462 states and 10576 transitions. [2024-11-28 04:18:13,969 INFO L78 Accepts]: Start accepts. Automaton has 6462 states and 10576 transitions. Word has length 173 [2024-11-28 04:18:13,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:13,970 INFO L471 AbstractCegarLoop]: Abstraction has 6462 states and 10576 transitions. [2024-11-28 04:18:13,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:13,970 INFO L276 IsEmpty]: Start isEmpty. Operand 6462 states and 10576 transitions. [2024-11-28 04:18:13,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 04:18:13,982 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:13,983 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:13,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:18:13,983 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:13,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:13,984 INFO L85 PathProgramCache]: Analyzing trace with hash -44571886, now seen corresponding path program 1 times [2024-11-28 04:18:13,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:18:13,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247525223] [2024-11-28 04:18:13,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:13,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:18:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:14,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:18:14,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:18:14,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247525223] [2024-11-28 04:18:14,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247525223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:14,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:14,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:18:14,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901275093] [2024-11-28 04:18:14,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:14,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:18:14,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:18:14,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:18:14,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:18:14,296 INFO L87 Difference]: Start difference. First operand 6462 states and 10576 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:16,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:16,550 INFO L93 Difference]: Finished difference Result 20986 states and 35291 transitions. [2024-11-28 04:18:16,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:18:16,551 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 173 [2024-11-28 04:18:16,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:16,663 INFO L225 Difference]: With dead ends: 20986 [2024-11-28 04:18:16,663 INFO L226 Difference]: Without dead ends: 14543 [2024-11-28 04:18:16,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:18:16,691 INFO L435 NwaCegarLoop]: 699 mSDtfsCounter, 1144 mSDsluCounter, 2110 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 2809 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:16,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 2809 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:18:16,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14543 states. [2024-11-28 04:18:17,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14543 to 14071. [2024-11-28 04:18:17,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14071 states, 13028 states have (on average 1.6552041756217377) internal successors, (21564), 13241 states have internal predecessors, (21564), 632 states have call successors, (632), 198 states have call predecessors, (632), 410 states have return successors, (1656), 663 states have call predecessors, (1656), 632 states have call successors, (1656) [2024-11-28 04:18:17,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14071 states to 14071 states and 23852 transitions. [2024-11-28 04:18:17,493 INFO L78 Accepts]: Start accepts. Automaton has 14071 states and 23852 transitions. Word has length 173 [2024-11-28 04:18:17,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:17,493 INFO L471 AbstractCegarLoop]: Abstraction has 14071 states and 23852 transitions. [2024-11-28 04:18:17,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:17,494 INFO L276 IsEmpty]: Start isEmpty. Operand 14071 states and 23852 transitions. [2024-11-28 04:18:17,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 04:18:17,508 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:17,508 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:17,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:18:17,509 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:17,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:17,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1886553748, now seen corresponding path program 1 times [2024-11-28 04:18:17,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:18:17,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849011091] [2024-11-28 04:18:17,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:17,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:18:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:17,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:18:17,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:18:17,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849011091] [2024-11-28 04:18:17,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849011091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:17,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:17,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:18:17,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815628640] [2024-11-28 04:18:17,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:17,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:18:17,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:18:17,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:18:17,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:18:17,763 INFO L87 Difference]: Start difference. First operand 14071 states and 23852 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:19,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:19,135 INFO L93 Difference]: Finished difference Result 32288 states and 56359 transitions. [2024-11-28 04:18:19,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:18:19,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 173 [2024-11-28 04:18:19,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:19,278 INFO L225 Difference]: With dead ends: 32288 [2024-11-28 04:18:19,278 INFO L226 Difference]: Without dead ends: 18236 [2024-11-28 04:18:19,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:18:19,356 INFO L435 NwaCegarLoop]: 360 mSDtfsCounter, 764 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:19,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 974 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:18:19,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18236 states. [2024-11-28 04:18:20,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18236 to 14071. [2024-11-28 04:18:20,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14071 states, 13028 states have (on average 1.6526711697881487) internal successors, (21531), 13241 states have internal predecessors, (21531), 632 states have call successors, (632), 198 states have call predecessors, (632), 410 states have return successors, (1656), 663 states have call predecessors, (1656), 632 states have call successors, (1656) [2024-11-28 04:18:20,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14071 states to 14071 states and 23819 transitions. [2024-11-28 04:18:20,688 INFO L78 Accepts]: Start accepts. Automaton has 14071 states and 23819 transitions. Word has length 173 [2024-11-28 04:18:20,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:20,689 INFO L471 AbstractCegarLoop]: Abstraction has 14071 states and 23819 transitions. [2024-11-28 04:18:20,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:20,690 INFO L276 IsEmpty]: Start isEmpty. Operand 14071 states and 23819 transitions. [2024-11-28 04:18:20,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 04:18:20,709 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:20,709 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:20,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:18:20,710 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:20,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:20,713 INFO L85 PathProgramCache]: Analyzing trace with hash -511434090, now seen corresponding path program 1 times [2024-11-28 04:18:20,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:18:20,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346962668] [2024-11-28 04:18:20,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:20,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:18:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:20,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:18:20,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:18:20,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346962668] [2024-11-28 04:18:20,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346962668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:20,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:20,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:18:20,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474951824] [2024-11-28 04:18:20,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:20,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:18:20,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:18:20,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:18:20,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:18:20,993 INFO L87 Difference]: Start difference. First operand 14071 states and 23819 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:23,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:23,864 INFO L93 Difference]: Finished difference Result 46361 states and 81150 transitions. [2024-11-28 04:18:23,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:18:23,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 173 [2024-11-28 04:18:23,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:24,044 INFO L225 Difference]: With dead ends: 46361 [2024-11-28 04:18:24,044 INFO L226 Difference]: Without dead ends: 32309 [2024-11-28 04:18:24,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:18:24,087 INFO L435 NwaCegarLoop]: 687 mSDtfsCounter, 1128 mSDsluCounter, 2077 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 2764 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:24,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1146 Valid, 2764 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:18:24,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32309 states. [2024-11-28 04:18:26,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32309 to 31638. [2024-11-28 04:18:26,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31638 states, 29341 states have (on average 1.686888654101769) internal successors, (49495), 30008 states have internal predecessors, (49495), 1240 states have call successors, (1240), 390 states have call predecessors, (1240), 1056 states have return successors, (5336), 1303 states have call predecessors, (5336), 1240 states have call successors, (5336) [2024-11-28 04:18:26,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31638 states to 31638 states and 56071 transitions. [2024-11-28 04:18:26,729 INFO L78 Accepts]: Start accepts. Automaton has 31638 states and 56071 transitions. Word has length 173 [2024-11-28 04:18:26,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:26,730 INFO L471 AbstractCegarLoop]: Abstraction has 31638 states and 56071 transitions. [2024-11-28 04:18:26,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:26,730 INFO L276 IsEmpty]: Start isEmpty. Operand 31638 states and 56071 transitions. [2024-11-28 04:18:26,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 04:18:26,766 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:26,766 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:26,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:18:26,766 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:26,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:26,767 INFO L85 PathProgramCache]: Analyzing trace with hash -173146540, now seen corresponding path program 1 times [2024-11-28 04:18:26,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:18:26,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856196632] [2024-11-28 04:18:26,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:26,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:18:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:27,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:18:27,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:18:27,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856196632] [2024-11-28 04:18:27,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856196632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:27,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:27,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:18:27,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837609398] [2024-11-28 04:18:27,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:27,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:18:27,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:18:27,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:18:27,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:18:27,019 INFO L87 Difference]: Start difference. First operand 31638 states and 56071 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:31,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:31,728 INFO L93 Difference]: Finished difference Result 106554 states and 197544 transitions. [2024-11-28 04:18:31,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:18:31,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 173 [2024-11-28 04:18:31,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:32,187 INFO L225 Difference]: With dead ends: 106554 [2024-11-28 04:18:32,188 INFO L226 Difference]: Without dead ends: 74935 [2024-11-28 04:18:32,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:18:32,328 INFO L435 NwaCegarLoop]: 684 mSDtfsCounter, 1123 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 2752 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:32,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1141 Valid, 2752 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 04:18:32,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74935 states. [2024-11-28 04:18:36,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74935 to 73819. [2024-11-28 04:18:37,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73819 states, 68528 states have (on average 1.722317884660285) internal successors, (118027), 70589 states have internal predecessors, (118027), 2456 states have call successors, (2456), 774 states have call predecessors, (2456), 2834 states have return successors, (18840), 2583 states have call predecessors, (18840), 2456 states have call successors, (18840) [2024-11-28 04:18:37,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73819 states to 73819 states and 139323 transitions. [2024-11-28 04:18:37,629 INFO L78 Accepts]: Start accepts. Automaton has 73819 states and 139323 transitions. Word has length 173 [2024-11-28 04:18:37,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:37,629 INFO L471 AbstractCegarLoop]: Abstraction has 73819 states and 139323 transitions. [2024-11-28 04:18:37,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:37,630 INFO L276 IsEmpty]: Start isEmpty. Operand 73819 states and 139323 transitions. [2024-11-28 04:18:37,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 04:18:37,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:37,682 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:37,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:18:37,683 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:37,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:37,685 INFO L85 PathProgramCache]: Analyzing trace with hash 253407958, now seen corresponding path program 1 times [2024-11-28 04:18:37,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:18:37,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338704900] [2024-11-28 04:18:37,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:37,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:18:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:37,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:18:37,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:18:37,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338704900] [2024-11-28 04:18:37,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338704900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:37,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:37,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:18:37,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985423778] [2024-11-28 04:18:37,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:37,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:18:37,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:18:37,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:18:37,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:18:37,908 INFO L87 Difference]: Start difference. First operand 73819 states and 139323 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:45,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:18:45,118 INFO L93 Difference]: Finished difference Result 253609 states and 508462 transitions. [2024-11-28 04:18:45,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:18:45,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 173 [2024-11-28 04:18:45,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:18:46,594 INFO L225 Difference]: With dead ends: 253609 [2024-11-28 04:18:46,595 INFO L226 Difference]: Without dead ends: 179809 [2024-11-28 04:18:46,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:18:46,852 INFO L435 NwaCegarLoop]: 681 mSDtfsCounter, 1118 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:18:46,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 2740 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:18:46,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179809 states. [2024-11-28 04:18:56,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179809 to 177864. [2024-11-28 04:18:56,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177864 states, 165127 states have (on average 1.7563390602384832) internal successors, (290019), 171434 states have internal predecessors, (290019), 4888 states have call successors, (4888), 1542 states have call predecessors, (4888), 7848 states have return successors, (70424), 5143 states have call predecessors, (70424), 4888 states have call successors, (70424) [2024-11-28 04:18:58,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177864 states to 177864 states and 365331 transitions. [2024-11-28 04:18:58,294 INFO L78 Accepts]: Start accepts. Automaton has 177864 states and 365331 transitions. Word has length 173 [2024-11-28 04:18:58,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:18:58,296 INFO L471 AbstractCegarLoop]: Abstraction has 177864 states and 365331 transitions. [2024-11-28 04:18:58,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:18:58,297 INFO L276 IsEmpty]: Start isEmpty. Operand 177864 states and 365331 transitions. [2024-11-28 04:18:58,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-28 04:18:58,962 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:18:58,963 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:18:58,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:18:58,963 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:18:58,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:18:58,963 INFO L85 PathProgramCache]: Analyzing trace with hash -287021548, now seen corresponding path program 1 times [2024-11-28 04:18:58,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:18:58,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62624978] [2024-11-28 04:18:58,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:18:58,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:18:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:18:59,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:18:59,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:18:59,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62624978] [2024-11-28 04:18:59,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62624978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:18:59,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:18:59,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:18:59,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253289455] [2024-11-28 04:18:59,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:18:59,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:18:59,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:18:59,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:18:59,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:18:59,140 INFO L87 Difference]: Start difference. First operand 177864 states and 365331 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)