./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 34aba2e0444cf7168338399e1c016871ad9a3305ff2dee9e611b86f3cad834b5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:52:39,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:52:39,734 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:52:39,744 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:52:39,744 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:52:39,772 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:52:39,772 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:52:39,773 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:52:39,773 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:52:39,773 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:52:39,774 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:52:39,774 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:52:39,774 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:52:39,774 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:52:39,775 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:52:39,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:52:39,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:52:39,775 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:52:39,775 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:52:39,776 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:52:39,776 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:52:39,776 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:52:39,780 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:52:39,780 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:52:39,780 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:52:39,781 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:52:39,781 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:52:39,781 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:52:39,781 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:52:39,781 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:52:39,781 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:52:39,781 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:52:39,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:52:39,782 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:52:39,782 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:52:39,782 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:52:39,782 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:52:39,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:52:39,782 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:52:39,782 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:52:39,782 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:52:39,782 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:52:39,782 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:52:39,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:52:39,783 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:52:39,783 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:52:39,783 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:52:39,783 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:52:39,783 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_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34aba2e0444cf7168338399e1c016871ad9a3305ff2dee9e611b86f3cad834b5 [2024-11-23 23:52:40,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:52:40,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:52:40,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:52:40,135 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:52:40,135 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:52:40,136 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2024-11-23 23:52:43,815 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/data/ce12aa4d0/a59dd1534eab4a76a69e97027bdcc751/FLAGe632f8317 [2024-11-23 23:52:44,312 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:52:44,312 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2024-11-23 23:52:44,332 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/data/ce12aa4d0/a59dd1534eab4a76a69e97027bdcc751/FLAGe632f8317 [2024-11-23 23:52:44,351 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/data/ce12aa4d0/a59dd1534eab4a76a69e97027bdcc751 [2024-11-23 23:52:44,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:52:44,356 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:52:44,358 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:52:44,358 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:52:44,364 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:52:44,365 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:52:44" (1/1) ... [2024-11-23 23:52:44,366 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@343e97c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:44, skipping insertion in model container [2024-11-23 23:52:44,367 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:52:44" (1/1) ... [2024-11-23 23:52:44,450 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:52:44,805 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_27fe90bb-c86b-4133-a54d-59089720251f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8127,8140] [2024-11-23 23:52:44,871 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_27fe90bb-c86b-4133-a54d-59089720251f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14997,15010] [2024-11-23 23:52:44,887 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_27fe90bb-c86b-4133-a54d-59089720251f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17084,17097] [2024-11-23 23:52:44,895 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_27fe90bb-c86b-4133-a54d-59089720251f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18108,18121] [2024-11-23 23:52:45,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:52:45,140 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:52:45,200 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_27fe90bb-c86b-4133-a54d-59089720251f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8127,8140] [2024-11-23 23:52:45,231 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_27fe90bb-c86b-4133-a54d-59089720251f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14997,15010] [2024-11-23 23:52:45,240 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_27fe90bb-c86b-4133-a54d-59089720251f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17084,17097] [2024-11-23 23:52:45,246 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_27fe90bb-c86b-4133-a54d-59089720251f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18108,18121] [2024-11-23 23:52:45,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:52:45,427 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:52:45,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:45 WrapperNode [2024-11-23 23:52:45,428 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:52:45,430 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:52:45,430 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:52:45,430 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:52:45,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:45" (1/1) ... [2024-11-23 23:52:45,466 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:45" (1/1) ... [2024-11-23 23:52:45,623 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2620 [2024-11-23 23:52:45,624 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:52:45,625 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:52:45,625 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:52:45,626 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:52:45,636 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:45" (1/1) ... [2024-11-23 23:52:45,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:45" (1/1) ... [2024-11-23 23:52:45,653 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:45" (1/1) ... [2024-11-23 23:52:45,712 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]. [2024-11-23 23:52:45,716 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:45" (1/1) ... [2024-11-23 23:52:45,716 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:45" (1/1) ... [2024-11-23 23:52:45,747 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:45" (1/1) ... [2024-11-23 23:52:45,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:45" (1/1) ... [2024-11-23 23:52:45,767 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:45" (1/1) ... [2024-11-23 23:52:45,789 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:45" (1/1) ... [2024-11-23 23:52:45,799 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:45" (1/1) ... [2024-11-23 23:52:45,821 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:52:45,829 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:52:45,829 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:52:45,829 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:52:45,830 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:45" (1/1) ... [2024-11-23 23:52:45,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:52:45,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:52:45,874 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:52:45,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:52:45,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:52:45,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:52:45,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:52:45,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:52:46,185 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:52:46,188 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:52:48,788 INFO L? ?]: Removed 426 outVars from TransFormulas that were not future-live. [2024-11-23 23:52:48,788 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:52:48,815 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:52:48,815 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 23:52:48,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:52:48 BoogieIcfgContainer [2024-11-23 23:52:48,816 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:52:48,818 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:52:48,818 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:52:48,824 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:52:48,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:52:44" (1/3) ... [2024-11-23 23:52:48,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3093e0b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:52:48, skipping insertion in model container [2024-11-23 23:52:48,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:52:45" (2/3) ... [2024-11-23 23:52:48,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3093e0b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:52:48, skipping insertion in model container [2024-11-23 23:52:48,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:52:48" (3/3) ... [2024-11-23 23:52:48,828 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2024-11-23 23:52:48,847 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:52:48,851 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c that has 1 procedures, 456 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-23 23:52:48,938 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:52:48,953 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;@55a6dfa6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:52:48,953 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-23 23:52:48,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 456 states, 451 states have (on average 1.8492239467849223) internal successors, (834), 455 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:48,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-23 23:52:48,975 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:52:48,976 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] [2024-11-23 23:52:48,977 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:52:48,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:52:48,985 INFO L85 PathProgramCache]: Analyzing trace with hash 26036561, now seen corresponding path program 1 times [2024-11-23 23:52:48,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:52:48,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22836343] [2024-11-23 23:52:48,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:52:49,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:52:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:52:49,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:52:49,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:52:49,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22836343] [2024-11-23 23:52:49,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22836343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:52:49,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:52:49,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:52:49,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231694646] [2024-11-23 23:52:49,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:52:49,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:52:49,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:52:49,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:52:49,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:52:49,990 INFO L87 Difference]: Start difference. First operand has 456 states, 451 states have (on average 1.8492239467849223) internal successors, (834), 455 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:50,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:52:50,845 INFO L93 Difference]: Finished difference Result 834 states and 1473 transitions. [2024-11-23 23:52:50,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:52:50,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-23 23:52:50,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:52:50,862 INFO L225 Difference]: With dead ends: 834 [2024-11-23 23:52:50,862 INFO L226 Difference]: Without dead ends: 485 [2024-11-23 23:52:50,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:52:50,870 INFO L435 NwaCegarLoop]: 444 mSDtfsCounter, 2298 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:52:50,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2298 Valid, 577 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:52:50,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-23 23:52:50,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 479. [2024-11-23 23:52:50,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 475 states have (on average 1.3747368421052633) internal successors, (653), 478 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:50,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 653 transitions. [2024-11-23 23:52:50,969 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 653 transitions. Word has length 50 [2024-11-23 23:52:50,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:52:50,970 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 653 transitions. [2024-11-23 23:52:50,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:50,971 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 653 transitions. [2024-11-23 23:52:50,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-23 23:52:50,979 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:52:50,979 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] [2024-11-23 23:52:50,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:52:50,980 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:52:50,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:52:50,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1543870192, now seen corresponding path program 1 times [2024-11-23 23:52:50,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:52:50,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854133687] [2024-11-23 23:52:50,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:52:50,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:52:51,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:52:51,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:52:51,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:52:51,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854133687] [2024-11-23 23:52:51,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854133687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:52:51,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:52:51,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:52:51,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420894121] [2024-11-23 23:52:51,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:52:51,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:52:51,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:52:51,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:52:51,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:52:51,183 INFO L87 Difference]: Start difference. First operand 479 states and 653 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:51,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:52:51,252 INFO L93 Difference]: Finished difference Result 940 states and 1338 transitions. [2024-11-23 23:52:51,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:52:51,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-23 23:52:51,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:52:51,257 INFO L225 Difference]: With dead ends: 940 [2024-11-23 23:52:51,257 INFO L226 Difference]: Without dead ends: 686 [2024-11-23 23:52:51,259 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 [2024-11-23 23:52:51,260 INFO L435 NwaCegarLoop]: 510 mSDtfsCounter, 272 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:52:51,260 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 860 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:52:51,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2024-11-23 23:52:51,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 680. [2024-11-23 23:52:51,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 676 states have (on average 1.4068047337278107) internal successors, (951), 679 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:51,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 951 transitions. [2024-11-23 23:52:51,316 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 951 transitions. Word has length 51 [2024-11-23 23:52:51,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:52:51,317 INFO L471 AbstractCegarLoop]: Abstraction has 680 states and 951 transitions. [2024-11-23 23:52:51,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:51,317 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 951 transitions. [2024-11-23 23:52:51,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-23 23:52:51,324 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:52:51,324 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] [2024-11-23 23:52:51,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:52:51,324 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:52:51,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:52:51,325 INFO L85 PathProgramCache]: Analyzing trace with hash -359372662, now seen corresponding path program 1 times [2024-11-23 23:52:51,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:52:51,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728814546] [2024-11-23 23:52:51,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:52:51,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:52:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:52:51,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:52:51,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:52:51,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728814546] [2024-11-23 23:52:51,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728814546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:52:51,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:52:51,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:52:51,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367024608] [2024-11-23 23:52:51,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:52:51,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:52:51,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:52:51,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:52:51,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:52:51,523 INFO L87 Difference]: Start difference. First operand 680 states and 951 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:51,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:52:51,614 INFO L93 Difference]: Finished difference Result 1566 states and 2244 transitions. [2024-11-23 23:52:51,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:52:51,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-23 23:52:51,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:52:51,625 INFO L225 Difference]: With dead ends: 1566 [2024-11-23 23:52:51,625 INFO L226 Difference]: Without dead ends: 1101 [2024-11-23 23:52:51,628 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 [2024-11-23 23:52:51,630 INFO L435 NwaCegarLoop]: 599 mSDtfsCounter, 366 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:52:51,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 936 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:52:51,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2024-11-23 23:52:51,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 1091. [2024-11-23 23:52:51,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1091 states, 1087 states have (on average 1.405703771849126) internal successors, (1528), 1090 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:51,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1528 transitions. [2024-11-23 23:52:51,694 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1528 transitions. Word has length 51 [2024-11-23 23:52:51,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:52:51,695 INFO L471 AbstractCegarLoop]: Abstraction has 1091 states and 1528 transitions. [2024-11-23 23:52:51,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:51,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1528 transitions. [2024-11-23 23:52:51,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-23 23:52:51,699 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:52:51,699 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] [2024-11-23 23:52:51,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:52:51,701 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:52:51,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:52:51,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1979749037, now seen corresponding path program 1 times [2024-11-23 23:52:51,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:52:51,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294398479] [2024-11-23 23:52:51,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:52:51,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:52:51,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:52:51,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:52:51,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:52:51,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294398479] [2024-11-23 23:52:51,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294398479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:52:51,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:52:51,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:52:51,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993189773] [2024-11-23 23:52:51,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:52:51,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:52:51,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:52:51,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:52:51,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:52:51,906 INFO L87 Difference]: Start difference. First operand 1091 states and 1528 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:52,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:52:52,038 INFO L93 Difference]: Finished difference Result 2383 states and 3421 transitions. [2024-11-23 23:52:52,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:52:52,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-23 23:52:52,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:52:52,051 INFO L225 Difference]: With dead ends: 2383 [2024-11-23 23:52:52,051 INFO L226 Difference]: Without dead ends: 1722 [2024-11-23 23:52:52,053 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 [2024-11-23 23:52:52,054 INFO L435 NwaCegarLoop]: 582 mSDtfsCounter, 265 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:52:52,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 928 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:52:52,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2024-11-23 23:52:52,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1715. [2024-11-23 23:52:52,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1711 states have (on average 1.4108708357685564) internal successors, (2414), 1714 states have internal predecessors, (2414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:52,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2414 transitions. [2024-11-23 23:52:52,119 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2414 transitions. Word has length 51 [2024-11-23 23:52:52,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:52:52,120 INFO L471 AbstractCegarLoop]: Abstraction has 1715 states and 2414 transitions. [2024-11-23 23:52:52,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:52,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2414 transitions. [2024-11-23 23:52:52,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-23 23:52:52,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:52:52,123 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] [2024-11-23 23:52:52,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:52:52,128 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:52:52,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:52:52,129 INFO L85 PathProgramCache]: Analyzing trace with hash -2124032919, now seen corresponding path program 1 times [2024-11-23 23:52:52,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:52:52,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129827810] [2024-11-23 23:52:52,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:52:52,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:52:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:52:52,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:52:52,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:52:52,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129827810] [2024-11-23 23:52:52,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129827810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:52:52,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:52:52,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:52:52,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904185854] [2024-11-23 23:52:52,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:52:52,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:52:52,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:52:52,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:52:52,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:52:52,430 INFO L87 Difference]: Start difference. First operand 1715 states and 2414 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:52,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:52:52,970 INFO L93 Difference]: Finished difference Result 3784 states and 5391 transitions. [2024-11-23 23:52:52,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:52:52,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-23 23:52:52,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:52:52,981 INFO L225 Difference]: With dead ends: 3784 [2024-11-23 23:52:52,981 INFO L226 Difference]: Without dead ends: 2240 [2024-11-23 23:52:52,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:52:52,987 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 1545 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1545 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:52:52,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1545 Valid, 371 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:52:52,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2024-11-23 23:52:53,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2226. [2024-11-23 23:52:53,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2226 states, 2222 states have (on average 1.4185418541854184) internal successors, (3152), 2225 states have internal predecessors, (3152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:53,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2226 states to 2226 states and 3152 transitions. [2024-11-23 23:52:53,067 INFO L78 Accepts]: Start accepts. Automaton has 2226 states and 3152 transitions. Word has length 51 [2024-11-23 23:52:53,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:52:53,068 INFO L471 AbstractCegarLoop]: Abstraction has 2226 states and 3152 transitions. [2024-11-23 23:52:53,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:53,069 INFO L276 IsEmpty]: Start isEmpty. Operand 2226 states and 3152 transitions. [2024-11-23 23:52:53,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-23 23:52:53,072 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:52:53,073 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] [2024-11-23 23:52:53,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:52:53,074 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:52:53,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:52:53,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1035105163, now seen corresponding path program 1 times [2024-11-23 23:52:53,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:52:53,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435764265] [2024-11-23 23:52:53,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:52:53,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:52:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:52:53,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:52:53,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:52:53,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435764265] [2024-11-23 23:52:53,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435764265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:52:53,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:52:53,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:52:53,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884803451] [2024-11-23 23:52:53,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:52:53,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:52:53,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:52:53,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:52:53,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:52:53,307 INFO L87 Difference]: Start difference. First operand 2226 states and 3152 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:53,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:52:53,814 INFO L93 Difference]: Finished difference Result 5039 states and 7185 transitions. [2024-11-23 23:52:53,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:52:53,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-11-23 23:52:53,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:52:53,832 INFO L225 Difference]: With dead ends: 5039 [2024-11-23 23:52:53,832 INFO L226 Difference]: Without dead ends: 2984 [2024-11-23 23:52:53,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:52:53,837 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 1392 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:52:53,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 340 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:52:53,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2024-11-23 23:52:53,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 2965. [2024-11-23 23:52:53,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2965 states, 2961 states have (on average 1.414724755150287) internal successors, (4189), 2964 states have internal predecessors, (4189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:53,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 4189 transitions. [2024-11-23 23:52:53,940 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 4189 transitions. Word has length 52 [2024-11-23 23:52:53,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:52:53,941 INFO L471 AbstractCegarLoop]: Abstraction has 2965 states and 4189 transitions. [2024-11-23 23:52:53,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:53,942 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 4189 transitions. [2024-11-23 23:52:53,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-23 23:52:53,945 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:52:53,946 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] [2024-11-23 23:52:53,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:52:53,946 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:52:53,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:52:53,984 INFO L85 PathProgramCache]: Analyzing trace with hash 825819079, now seen corresponding path program 1 times [2024-11-23 23:52:53,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:52:53,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941801849] [2024-11-23 23:52:53,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:52:53,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:52:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:52:54,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:52:54,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:52:54,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941801849] [2024-11-23 23:52:54,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941801849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:52:54,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:52:54,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:52:54,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139781051] [2024-11-23 23:52:54,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:52:54,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:52:54,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:52:54,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:52:54,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:52:54,307 INFO L87 Difference]: Start difference. First operand 2965 states and 4189 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:54,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:52:54,981 INFO L93 Difference]: Finished difference Result 5848 states and 8347 transitions. [2024-11-23 23:52:54,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:52:54,982 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-23 23:52:54,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:52:55,047 INFO L225 Difference]: With dead ends: 5848 [2024-11-23 23:52:55,048 INFO L226 Difference]: Without dead ends: 4545 [2024-11-23 23:52:55,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:52:55,051 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 1723 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1723 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:52:55,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1723 Valid, 588 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:52:55,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4545 states. [2024-11-23 23:52:55,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4545 to 2979. [2024-11-23 23:52:55,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2975 states have (on average 1.4141176470588235) internal successors, (4207), 2978 states have internal predecessors, (4207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:55,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 4207 transitions. [2024-11-23 23:52:55,196 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 4207 transitions. Word has length 53 [2024-11-23 23:52:55,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:52:55,196 INFO L471 AbstractCegarLoop]: Abstraction has 2979 states and 4207 transitions. [2024-11-23 23:52:55,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:55,197 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 4207 transitions. [2024-11-23 23:52:55,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-23 23:52:55,200 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:52:55,200 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] [2024-11-23 23:52:55,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:52:55,202 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:52:55,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:52:55,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1519774840, now seen corresponding path program 1 times [2024-11-23 23:52:55,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:52:55,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031593173] [2024-11-23 23:52:55,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:52:55,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:52:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:52:55,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:52:55,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:52:55,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031593173] [2024-11-23 23:52:55,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031593173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:52:55,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:52:55,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:52:55,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630651896] [2024-11-23 23:52:55,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:52:55,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:52:55,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:52:55,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:52:55,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:52:55,543 INFO L87 Difference]: Start difference. First operand 2979 states and 4207 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:56,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:52:56,297 INFO L93 Difference]: Finished difference Result 6531 states and 9328 transitions. [2024-11-23 23:52:56,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:52:56,298 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-23 23:52:56,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:52:56,319 INFO L225 Difference]: With dead ends: 6531 [2024-11-23 23:52:56,319 INFO L226 Difference]: Without dead ends: 5419 [2024-11-23 23:52:56,322 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:52:56,323 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 1848 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1848 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:52:56,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1848 Valid, 623 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:52:56,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5419 states. [2024-11-23 23:52:56,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5419 to 3001. [2024-11-23 23:52:56,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3001 states, 2997 states have (on average 1.4140807474140809) internal successors, (4238), 3000 states have internal predecessors, (4238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:56,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3001 states to 3001 states and 4238 transitions. [2024-11-23 23:52:56,456 INFO L78 Accepts]: Start accepts. Automaton has 3001 states and 4238 transitions. Word has length 53 [2024-11-23 23:52:56,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:52:56,457 INFO L471 AbstractCegarLoop]: Abstraction has 3001 states and 4238 transitions. [2024-11-23 23:52:56,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:56,458 INFO L276 IsEmpty]: Start isEmpty. Operand 3001 states and 4238 transitions. [2024-11-23 23:52:56,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-23 23:52:56,460 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:52:56,460 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] [2024-11-23 23:52:56,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:52:56,460 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:52:56,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:52:56,461 INFO L85 PathProgramCache]: Analyzing trace with hash -461927258, now seen corresponding path program 1 times [2024-11-23 23:52:56,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:52:56,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907920112] [2024-11-23 23:52:56,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:52:56,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:52:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:52:56,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:52:56,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:52:56,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907920112] [2024-11-23 23:52:56,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907920112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:52:56,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:52:56,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:52:56,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331584515] [2024-11-23 23:52:56,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:52:56,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:52:56,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:52:56,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:52:56,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:52:56,709 INFO L87 Difference]: Start difference. First operand 3001 states and 4238 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:57,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:52:57,465 INFO L93 Difference]: Finished difference Result 7211 states and 10289 transitions. [2024-11-23 23:52:57,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:52:57,466 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-23 23:52:57,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:52:57,489 INFO L225 Difference]: With dead ends: 7211 [2024-11-23 23:52:57,489 INFO L226 Difference]: Without dead ends: 6243 [2024-11-23 23:52:57,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:52:57,493 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 1962 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1962 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:52:57,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1962 Valid, 635 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:52:57,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6243 states. [2024-11-23 23:52:57,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6243 to 3035. [2024-11-23 23:52:57,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3035 states, 3031 states have (on average 1.4127350709336852) internal successors, (4282), 3034 states have internal predecessors, (4282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:57,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3035 states to 3035 states and 4282 transitions. [2024-11-23 23:52:57,608 INFO L78 Accepts]: Start accepts. Automaton has 3035 states and 4282 transitions. Word has length 53 [2024-11-23 23:52:57,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:52:57,609 INFO L471 AbstractCegarLoop]: Abstraction has 3035 states and 4282 transitions. [2024-11-23 23:52:57,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:57,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3035 states and 4282 transitions. [2024-11-23 23:52:57,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-23 23:52:57,612 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:52:57,612 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] [2024-11-23 23:52:57,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:52:57,612 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:52:57,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:52:57,613 INFO L85 PathProgramCache]: Analyzing trace with hash -719043471, now seen corresponding path program 1 times [2024-11-23 23:52:57,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:52:57,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142092315] [2024-11-23 23:52:57,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:52:57,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:52:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:52:58,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:52:58,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:52:58,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142092315] [2024-11-23 23:52:58,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142092315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:52:58,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:52:58,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:52:58,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687956233] [2024-11-23 23:52:58,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:52:58,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:52:58,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:52:58,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:52:58,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:52:58,158 INFO L87 Difference]: Start difference. First operand 3035 states and 4282 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:58,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:52:58,945 INFO L93 Difference]: Finished difference Result 6201 states and 8913 transitions. [2024-11-23 23:52:58,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:52:58,946 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-23 23:52:58,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:52:58,958 INFO L225 Difference]: With dead ends: 6201 [2024-11-23 23:52:58,958 INFO L226 Difference]: Without dead ends: 4252 [2024-11-23 23:52:58,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:52:58,962 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 1988 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1988 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:52:58,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1988 Valid, 776 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:52:58,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4252 states. [2024-11-23 23:52:59,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4252 to 2945. [2024-11-23 23:52:59,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2945 states, 2941 states have (on average 1.4124447466848011) internal successors, (4154), 2944 states have internal predecessors, (4154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:59,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2945 states to 2945 states and 4154 transitions. [2024-11-23 23:52:59,057 INFO L78 Accepts]: Start accepts. Automaton has 2945 states and 4154 transitions. Word has length 54 [2024-11-23 23:52:59,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:52:59,057 INFO L471 AbstractCegarLoop]: Abstraction has 2945 states and 4154 transitions. [2024-11-23 23:52:59,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:52:59,060 INFO L276 IsEmpty]: Start isEmpty. Operand 2945 states and 4154 transitions. [2024-11-23 23:52:59,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-23 23:52:59,063 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:52:59,063 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] [2024-11-23 23:52:59,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:52:59,063 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:52:59,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:52:59,064 INFO L85 PathProgramCache]: Analyzing trace with hash 465454059, now seen corresponding path program 1 times [2024-11-23 23:52:59,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:52:59,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77997047] [2024-11-23 23:52:59,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:52:59,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:52:59,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:52:59,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:52:59,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:52:59,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77997047] [2024-11-23 23:52:59,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77997047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:52:59,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:52:59,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:52:59,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349161986] [2024-11-23 23:52:59,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:52:59,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:52:59,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:52:59,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:52:59,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:52:59,651 INFO L87 Difference]: Start difference. First operand 2945 states and 4154 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:00,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:00,801 INFO L93 Difference]: Finished difference Result 5898 states and 8420 transitions. [2024-11-23 23:53:00,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:53:00,802 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-23 23:53:00,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:00,817 INFO L225 Difference]: With dead ends: 5898 [2024-11-23 23:53:00,817 INFO L226 Difference]: Without dead ends: 4109 [2024-11-23 23:53:00,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:53:00,822 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 1701 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1701 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:00,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1701 Valid, 1209 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 23:53:00,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4109 states. [2024-11-23 23:53:00,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4109 to 2916. [2024-11-23 23:53:00,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2916 states, 2912 states have (on average 1.4124313186813187) internal successors, (4113), 2915 states have internal predecessors, (4113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:00,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2916 states to 2916 states and 4113 transitions. [2024-11-23 23:53:00,899 INFO L78 Accepts]: Start accepts. Automaton has 2916 states and 4113 transitions. Word has length 54 [2024-11-23 23:53:00,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:00,900 INFO L471 AbstractCegarLoop]: Abstraction has 2916 states and 4113 transitions. [2024-11-23 23:53:00,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:00,900 INFO L276 IsEmpty]: Start isEmpty. Operand 2916 states and 4113 transitions. [2024-11-23 23:53:00,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-23 23:53:00,903 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:00,903 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] [2024-11-23 23:53:00,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:53:00,904 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:00,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:00,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1085167472, now seen corresponding path program 1 times [2024-11-23 23:53:00,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:00,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636910837] [2024-11-23 23:53:00,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:00,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:01,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:01,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:01,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636910837] [2024-11-23 23:53:01,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636910837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:01,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:01,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:53:01,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635184199] [2024-11-23 23:53:01,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:01,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:53:01,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:01,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:53:01,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:53:01,391 INFO L87 Difference]: Start difference. First operand 2916 states and 4113 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:02,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:02,389 INFO L93 Difference]: Finished difference Result 4377 states and 6197 transitions. [2024-11-23 23:53:02,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:53:02,390 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-23 23:53:02,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:02,400 INFO L225 Difference]: With dead ends: 4377 [2024-11-23 23:53:02,400 INFO L226 Difference]: Without dead ends: 4372 [2024-11-23 23:53:02,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:53:02,403 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 2062 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2062 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:02,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2062 Valid, 1079 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:53:02,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4372 states. [2024-11-23 23:53:02,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4372 to 2916. [2024-11-23 23:53:02,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2916 states, 2912 states have (on average 1.4117445054945055) internal successors, (4111), 2915 states have internal predecessors, (4111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:02,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2916 states to 2916 states and 4111 transitions. [2024-11-23 23:53:02,486 INFO L78 Accepts]: Start accepts. Automaton has 2916 states and 4111 transitions. Word has length 54 [2024-11-23 23:53:02,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:02,487 INFO L471 AbstractCegarLoop]: Abstraction has 2916 states and 4111 transitions. [2024-11-23 23:53:02,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:02,487 INFO L276 IsEmpty]: Start isEmpty. Operand 2916 states and 4111 transitions. [2024-11-23 23:53:02,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-23 23:53:02,490 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:02,490 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] [2024-11-23 23:53:02,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:53:02,490 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:02,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:02,491 INFO L85 PathProgramCache]: Analyzing trace with hash -344500623, now seen corresponding path program 1 times [2024-11-23 23:53:02,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:02,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448650588] [2024-11-23 23:53:02,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:02,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:02,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:02,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:02,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448650588] [2024-11-23 23:53:02,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448650588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:02,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:02,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:53:02,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896637447] [2024-11-23 23:53:02,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:02,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:53:02,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:02,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:53:02,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:53:02,580 INFO L87 Difference]: Start difference. First operand 2916 states and 4111 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:02,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:02,647 INFO L93 Difference]: Finished difference Result 4186 states and 5952 transitions. [2024-11-23 23:53:02,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:53:02,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-23 23:53:02,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:02,656 INFO L225 Difference]: With dead ends: 4186 [2024-11-23 23:53:02,656 INFO L226 Difference]: Without dead ends: 2923 [2024-11-23 23:53:02,659 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 [2024-11-23 23:53:02,661 INFO L435 NwaCegarLoop]: 505 mSDtfsCounter, 226 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:02,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 804 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:53:02,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2024-11-23 23:53:02,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 2916. [2024-11-23 23:53:02,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2916 states, 2912 states have (on average 1.3980082417582418) internal successors, (4071), 2915 states have internal predecessors, (4071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:02,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2916 states to 2916 states and 4071 transitions. [2024-11-23 23:53:02,734 INFO L78 Accepts]: Start accepts. Automaton has 2916 states and 4071 transitions. Word has length 55 [2024-11-23 23:53:02,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:02,735 INFO L471 AbstractCegarLoop]: Abstraction has 2916 states and 4071 transitions. [2024-11-23 23:53:02,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:02,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2916 states and 4071 transitions. [2024-11-23 23:53:02,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-23 23:53:02,738 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:02,738 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] [2024-11-23 23:53:02,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:53:02,739 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:02,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:02,739 INFO L85 PathProgramCache]: Analyzing trace with hash 29096373, now seen corresponding path program 1 times [2024-11-23 23:53:02,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:02,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830641453] [2024-11-23 23:53:02,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:02,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:02,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:02,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:02,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830641453] [2024-11-23 23:53:02,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830641453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:02,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:02,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:53:02,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737691482] [2024-11-23 23:53:02,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:02,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:53:02,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:02,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:53:02,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:53:02,842 INFO L87 Difference]: Start difference. First operand 2916 states and 4071 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:02,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:02,895 INFO L93 Difference]: Finished difference Result 4255 states and 5988 transitions. [2024-11-23 23:53:02,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:53:02,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-23 23:53:02,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:02,904 INFO L225 Difference]: With dead ends: 4255 [2024-11-23 23:53:02,904 INFO L226 Difference]: Without dead ends: 2922 [2024-11-23 23:53:02,906 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 [2024-11-23 23:53:02,907 INFO L435 NwaCegarLoop]: 517 mSDtfsCounter, 242 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:02,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 805 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:53:02,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2024-11-23 23:53:02,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2916. [2024-11-23 23:53:02,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2916 states, 2912 states have (on average 1.3856456043956045) internal successors, (4035), 2915 states have internal predecessors, (4035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:02,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2916 states to 2916 states and 4035 transitions. [2024-11-23 23:53:02,963 INFO L78 Accepts]: Start accepts. Automaton has 2916 states and 4035 transitions. Word has length 55 [2024-11-23 23:53:02,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:02,963 INFO L471 AbstractCegarLoop]: Abstraction has 2916 states and 4035 transitions. [2024-11-23 23:53:02,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:02,964 INFO L276 IsEmpty]: Start isEmpty. Operand 2916 states and 4035 transitions. [2024-11-23 23:53:02,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-23 23:53:02,966 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:02,966 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] [2024-11-23 23:53:02,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:53:02,966 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:02,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:02,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1813019801, now seen corresponding path program 1 times [2024-11-23 23:53:02,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:02,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266928660] [2024-11-23 23:53:02,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:02,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:03,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:03,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:03,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:03,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266928660] [2024-11-23 23:53:03,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266928660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:03,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:03,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:53:03,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338601872] [2024-11-23 23:53:03,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:03,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:53:03,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:03,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:53:03,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:53:03,063 INFO L87 Difference]: Start difference. First operand 2916 states and 4035 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:03,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:03,113 INFO L93 Difference]: Finished difference Result 3997 states and 5541 transitions. [2024-11-23 23:53:03,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:53:03,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-23 23:53:03,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:03,121 INFO L225 Difference]: With dead ends: 3997 [2024-11-23 23:53:03,121 INFO L226 Difference]: Without dead ends: 2907 [2024-11-23 23:53:03,125 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 [2024-11-23 23:53:03,125 INFO L435 NwaCegarLoop]: 504 mSDtfsCounter, 261 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:03,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 816 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:53:03,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2024-11-23 23:53:03,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 2901. [2024-11-23 23:53:03,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2901 states, 2897 states have (on average 1.3583016914049015) internal successors, (3935), 2900 states have internal predecessors, (3935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:03,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2901 states to 2901 states and 3935 transitions. [2024-11-23 23:53:03,181 INFO L78 Accepts]: Start accepts. Automaton has 2901 states and 3935 transitions. Word has length 55 [2024-11-23 23:53:03,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:03,182 INFO L471 AbstractCegarLoop]: Abstraction has 2901 states and 3935 transitions. [2024-11-23 23:53:03,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:03,182 INFO L276 IsEmpty]: Start isEmpty. Operand 2901 states and 3935 transitions. [2024-11-23 23:53:03,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-23 23:53:03,185 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:03,185 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] [2024-11-23 23:53:03,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 23:53:03,187 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:03,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:03,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1260356730, now seen corresponding path program 1 times [2024-11-23 23:53:03,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:03,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8335148] [2024-11-23 23:53:03,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:03,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:03,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:03,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:03,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8335148] [2024-11-23 23:53:03,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8335148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:03,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:03,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:53:03,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448267623] [2024-11-23 23:53:03,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:03,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:53:03,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:03,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:53:03,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:53:03,289 INFO L87 Difference]: Start difference. First operand 2901 states and 3935 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:03,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:03,389 INFO L93 Difference]: Finished difference Result 4576 states and 6264 transitions. [2024-11-23 23:53:03,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:53:03,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-23 23:53:03,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:03,398 INFO L225 Difference]: With dead ends: 4576 [2024-11-23 23:53:03,398 INFO L226 Difference]: Without dead ends: 3319 [2024-11-23 23:53:03,400 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 [2024-11-23 23:53:03,402 INFO L435 NwaCegarLoop]: 369 mSDtfsCounter, 326 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:03,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 524 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:53:03,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3319 states. [2024-11-23 23:53:03,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3319 to 2719. [2024-11-23 23:53:03,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2719 states, 2715 states have (on average 1.3624309392265193) internal successors, (3699), 2718 states have internal predecessors, (3699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:03,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 3699 transitions. [2024-11-23 23:53:03,456 INFO L78 Accepts]: Start accepts. Automaton has 2719 states and 3699 transitions. Word has length 56 [2024-11-23 23:53:03,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:03,456 INFO L471 AbstractCegarLoop]: Abstraction has 2719 states and 3699 transitions. [2024-11-23 23:53:03,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:03,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2719 states and 3699 transitions. [2024-11-23 23:53:03,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-23 23:53:03,459 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:03,460 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] [2024-11-23 23:53:03,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 23:53:03,460 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:03,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:03,462 INFO L85 PathProgramCache]: Analyzing trace with hash -171160754, now seen corresponding path program 1 times [2024-11-23 23:53:03,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:03,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151223882] [2024-11-23 23:53:03,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:03,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:03,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:03,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:03,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151223882] [2024-11-23 23:53:03,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151223882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:03,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:03,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:53:03,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274823005] [2024-11-23 23:53:03,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:03,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:53:03,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:03,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:53:03,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:53:03,555 INFO L87 Difference]: Start difference. First operand 2719 states and 3699 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:03,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:03,674 INFO L93 Difference]: Finished difference Result 4995 states and 6854 transitions. [2024-11-23 23:53:03,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:53:03,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-23 23:53:03,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:03,683 INFO L225 Difference]: With dead ends: 4995 [2024-11-23 23:53:03,683 INFO L226 Difference]: Without dead ends: 3334 [2024-11-23 23:53:03,686 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 [2024-11-23 23:53:03,686 INFO L435 NwaCegarLoop]: 312 mSDtfsCounter, 302 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:03,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 462 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:53:03,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3334 states. [2024-11-23 23:53:03,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3334 to 2583. [2024-11-23 23:53:03,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2583 states, 2579 states have (on average 1.3660333462582397) internal successors, (3523), 2582 states have internal predecessors, (3523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:03,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2583 states to 2583 states and 3523 transitions. [2024-11-23 23:53:03,736 INFO L78 Accepts]: Start accepts. Automaton has 2583 states and 3523 transitions. Word has length 57 [2024-11-23 23:53:03,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:03,736 INFO L471 AbstractCegarLoop]: Abstraction has 2583 states and 3523 transitions. [2024-11-23 23:53:03,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:03,737 INFO L276 IsEmpty]: Start isEmpty. Operand 2583 states and 3523 transitions. [2024-11-23 23:53:03,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-23 23:53:03,739 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:03,739 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] [2024-11-23 23:53:03,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 23:53:03,740 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:03,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:03,740 INFO L85 PathProgramCache]: Analyzing trace with hash -544179575, now seen corresponding path program 1 times [2024-11-23 23:53:03,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:03,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551719653] [2024-11-23 23:53:03,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:03,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:05,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:05,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:05,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551719653] [2024-11-23 23:53:05,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551719653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:05,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:05,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-23 23:53:05,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277244021] [2024-11-23 23:53:05,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:05,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-23 23:53:05,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:05,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-23 23:53:05,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:53:05,616 INFO L87 Difference]: Start difference. First operand 2583 states and 3523 transitions. Second operand has 19 states, 19 states have (on average 3.0) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:09,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:09,223 INFO L93 Difference]: Finished difference Result 3799 states and 5202 transitions. [2024-11-23 23:53:09,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 23:53:09,224 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-23 23:53:09,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:09,232 INFO L225 Difference]: With dead ends: 3799 [2024-11-23 23:53:09,232 INFO L226 Difference]: Without dead ends: 3795 [2024-11-23 23:53:09,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=220, Invalid=1040, Unknown=0, NotChecked=0, Total=1260 [2024-11-23 23:53:09,235 INFO L435 NwaCegarLoop]: 293 mSDtfsCounter, 3319 mSDsluCounter, 3495 mSDsCounter, 0 mSdLazyCounter, 2122 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3319 SdHoareTripleChecker+Valid, 3788 SdHoareTripleChecker+Invalid, 2135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:09,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3319 Valid, 3788 Invalid, 2135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2122 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-23 23:53:09,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3795 states. [2024-11-23 23:53:09,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3795 to 2583. [2024-11-23 23:53:09,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2583 states, 2579 states have (on average 1.3656455990694067) internal successors, (3522), 2582 states have internal predecessors, (3522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:09,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2583 states to 2583 states and 3522 transitions. [2024-11-23 23:53:09,283 INFO L78 Accepts]: Start accepts. Automaton has 2583 states and 3522 transitions. Word has length 57 [2024-11-23 23:53:09,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:09,284 INFO L471 AbstractCegarLoop]: Abstraction has 2583 states and 3522 transitions. [2024-11-23 23:53:09,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:09,284 INFO L276 IsEmpty]: Start isEmpty. Operand 2583 states and 3522 transitions. [2024-11-23 23:53:09,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-23 23:53:09,287 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:09,287 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] [2024-11-23 23:53:09,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 23:53:09,287 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:09,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:09,288 INFO L85 PathProgramCache]: Analyzing trace with hash 303331698, now seen corresponding path program 1 times [2024-11-23 23:53:09,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:09,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925345386] [2024-11-23 23:53:09,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:09,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:10,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:10,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:10,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925345386] [2024-11-23 23:53:10,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925345386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:10,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:10,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 23:53:10,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808524614] [2024-11-23 23:53:10,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:10,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:53:10,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:10,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:53:10,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:53:10,126 INFO L87 Difference]: Start difference. First operand 2583 states and 3522 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:11,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:11,128 INFO L93 Difference]: Finished difference Result 4515 states and 6221 transitions. [2024-11-23 23:53:11,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:53:11,129 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-23 23:53:11,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:11,138 INFO L225 Difference]: With dead ends: 4515 [2024-11-23 23:53:11,138 INFO L226 Difference]: Without dead ends: 4149 [2024-11-23 23:53:11,139 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2024-11-23 23:53:11,140 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 2285 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2285 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:11,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2285 Valid, 1442 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:53:11,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4149 states. [2024-11-23 23:53:11,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4149 to 2520. [2024-11-23 23:53:11,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2520 states, 2518 states have (on average 1.368546465448769) internal successors, (3446), 2519 states have internal predecessors, (3446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:11,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2520 states to 2520 states and 3446 transitions. [2024-11-23 23:53:11,188 INFO L78 Accepts]: Start accepts. Automaton has 2520 states and 3446 transitions. Word has length 57 [2024-11-23 23:53:11,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:11,188 INFO L471 AbstractCegarLoop]: Abstraction has 2520 states and 3446 transitions. [2024-11-23 23:53:11,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:11,188 INFO L276 IsEmpty]: Start isEmpty. Operand 2520 states and 3446 transitions. [2024-11-23 23:53:11,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-23 23:53:11,191 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:11,191 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] [2024-11-23 23:53:11,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 23:53:11,192 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:11,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:11,192 INFO L85 PathProgramCache]: Analyzing trace with hash 114355337, now seen corresponding path program 1 times [2024-11-23 23:53:11,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:11,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359544717] [2024-11-23 23:53:11,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:11,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:12,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:12,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:12,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359544717] [2024-11-23 23:53:12,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359544717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:12,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:12,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 23:53:12,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270098689] [2024-11-23 23:53:12,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:12,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 23:53:12,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:12,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 23:53:12,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:53:12,594 INFO L87 Difference]: Start difference. First operand 2520 states and 3446 transitions. Second operand has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 15 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:14,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:14,285 INFO L93 Difference]: Finished difference Result 3373 states and 4634 transitions. [2024-11-23 23:53:14,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:53:14,286 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 15 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-23 23:53:14,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:14,294 INFO L225 Difference]: With dead ends: 3373 [2024-11-23 23:53:14,294 INFO L226 Difference]: Without dead ends: 3247 [2024-11-23 23:53:14,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2024-11-23 23:53:14,297 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 997 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:14,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 2232 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 23:53:14,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3247 states. [2024-11-23 23:53:14,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3247 to 2506. [2024-11-23 23:53:14,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2506 states, 2505 states have (on average 1.3688622754491018) internal successors, (3429), 2505 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:14,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2506 states to 2506 states and 3429 transitions. [2024-11-23 23:53:14,367 INFO L78 Accepts]: Start accepts. Automaton has 2506 states and 3429 transitions. Word has length 58 [2024-11-23 23:53:14,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:14,367 INFO L471 AbstractCegarLoop]: Abstraction has 2506 states and 3429 transitions. [2024-11-23 23:53:14,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 15 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:14,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2506 states and 3429 transitions. [2024-11-23 23:53:14,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-23 23:53:14,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:14,373 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] [2024-11-23 23:53:14,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 23:53:14,373 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:14,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:14,375 INFO L85 PathProgramCache]: Analyzing trace with hash 485032383, now seen corresponding path program 1 times [2024-11-23 23:53:14,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:14,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381418074] [2024-11-23 23:53:14,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:14,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:14,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:14,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:14,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381418074] [2024-11-23 23:53:14,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381418074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:14,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:14,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:53:14,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075929410] [2024-11-23 23:53:14,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:14,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:53:14,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:14,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:53:14,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:53:14,524 INFO L87 Difference]: Start difference. First operand 2506 states and 3429 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:14,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:14,645 INFO L93 Difference]: Finished difference Result 6084 states and 8543 transitions. [2024-11-23 23:53:14,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:53:14,646 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-23 23:53:14,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:14,657 INFO L225 Difference]: With dead ends: 6084 [2024-11-23 23:53:14,657 INFO L226 Difference]: Without dead ends: 4573 [2024-11-23 23:53:14,660 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:53:14,661 INFO L435 NwaCegarLoop]: 285 mSDtfsCounter, 1085 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:14,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 694 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:53:14,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4573 states. [2024-11-23 23:53:14,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4573 to 3910. [2024-11-23 23:53:14,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3910 states, 3909 states have (on average 1.3727295983627525) internal successors, (5366), 3909 states have internal predecessors, (5366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:14,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5366 transitions. [2024-11-23 23:53:14,727 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5366 transitions. Word has length 66 [2024-11-23 23:53:14,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:14,727 INFO L471 AbstractCegarLoop]: Abstraction has 3910 states and 5366 transitions. [2024-11-23 23:53:14,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:14,728 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5366 transitions. [2024-11-23 23:53:14,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-23 23:53:14,733 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:14,734 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] [2024-11-23 23:53:14,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 23:53:14,734 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:14,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:14,735 INFO L85 PathProgramCache]: Analyzing trace with hash -656464105, now seen corresponding path program 1 times [2024-11-23 23:53:14,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:14,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088404459] [2024-11-23 23:53:14,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:14,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:14,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:14,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:14,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088404459] [2024-11-23 23:53:14,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088404459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:14,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:14,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:53:14,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563119889] [2024-11-23 23:53:14,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:14,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:53:14,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:14,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:53:14,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:53:14,903 INFO L87 Difference]: Start difference. First operand 3910 states and 5366 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:15,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:15,008 INFO L93 Difference]: Finished difference Result 3916 states and 5369 transitions. [2024-11-23 23:53:15,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:53:15,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-23 23:53:15,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:15,022 INFO L225 Difference]: With dead ends: 3916 [2024-11-23 23:53:15,022 INFO L226 Difference]: Without dead ends: 3445 [2024-11-23 23:53:15,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:53:15,026 INFO L435 NwaCegarLoop]: 436 mSDtfsCounter, 799 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:15,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 731 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:53:15,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3445 states. [2024-11-23 23:53:15,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3445 to 3441. [2024-11-23 23:53:15,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3441 states, 3440 states have (on average 1.3767441860465117) internal successors, (4736), 3440 states have internal predecessors, (4736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:15,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3441 states to 3441 states and 4736 transitions. [2024-11-23 23:53:15,078 INFO L78 Accepts]: Start accepts. Automaton has 3441 states and 4736 transitions. Word has length 67 [2024-11-23 23:53:15,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:15,079 INFO L471 AbstractCegarLoop]: Abstraction has 3441 states and 4736 transitions. [2024-11-23 23:53:15,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:15,079 INFO L276 IsEmpty]: Start isEmpty. Operand 3441 states and 4736 transitions. [2024-11-23 23:53:15,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-23 23:53:15,084 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:15,084 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] [2024-11-23 23:53:15,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-23 23:53:15,085 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:15,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:15,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1272488439, now seen corresponding path program 1 times [2024-11-23 23:53:15,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:15,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051588377] [2024-11-23 23:53:15,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:15,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:15,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:15,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:15,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051588377] [2024-11-23 23:53:15,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051588377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:15,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:15,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:53:15,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356601137] [2024-11-23 23:53:15,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:15,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:53:15,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:15,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:53:15,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:53:15,255 INFO L87 Difference]: Start difference. First operand 3441 states and 4736 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:15,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:15,323 INFO L93 Difference]: Finished difference Result 8049 states and 11214 transitions. [2024-11-23 23:53:15,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:53:15,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-23 23:53:15,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:15,336 INFO L225 Difference]: With dead ends: 8049 [2024-11-23 23:53:15,336 INFO L226 Difference]: Without dead ends: 5645 [2024-11-23 23:53:15,340 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 [2024-11-23 23:53:15,341 INFO L435 NwaCegarLoop]: 364 mSDtfsCounter, 138 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:15,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 575 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:53:15,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5645 states. [2024-11-23 23:53:15,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5645 to 5275. [2024-11-23 23:53:15,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 1.3830109973454683) internal successors, (7294), 5274 states have internal predecessors, (7294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:15,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 7294 transitions. [2024-11-23 23:53:15,428 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 7294 transitions. Word has length 68 [2024-11-23 23:53:15,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:15,428 INFO L471 AbstractCegarLoop]: Abstraction has 5275 states and 7294 transitions. [2024-11-23 23:53:15,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:15,429 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 7294 transitions. [2024-11-23 23:53:15,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-23 23:53:15,433 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:15,434 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] [2024-11-23 23:53:15,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-23 23:53:15,434 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:15,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:15,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1794430615, now seen corresponding path program 1 times [2024-11-23 23:53:15,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:15,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528056548] [2024-11-23 23:53:15,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:15,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:15,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:15,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:15,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528056548] [2024-11-23 23:53:15,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528056548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:15,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:15,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:53:15,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745050604] [2024-11-23 23:53:15,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:15,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:53:15,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:15,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:53:15,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:53:15,584 INFO L87 Difference]: Start difference. First operand 5275 states and 7294 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:15,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:15,654 INFO L93 Difference]: Finished difference Result 13067 states and 18140 transitions. [2024-11-23 23:53:15,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:53:15,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-23 23:53:15,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:15,675 INFO L225 Difference]: With dead ends: 13067 [2024-11-23 23:53:15,675 INFO L226 Difference]: Without dead ends: 8577 [2024-11-23 23:53:15,681 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 [2024-11-23 23:53:15,682 INFO L435 NwaCegarLoop]: 365 mSDtfsCounter, 134 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:15,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 571 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:53:15,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8577 states. [2024-11-23 23:53:15,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8577 to 7943. [2024-11-23 23:53:15,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7943 states, 7942 states have (on average 1.3669100982120372) internal successors, (10856), 7942 states have internal predecessors, (10856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:15,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7943 states to 7943 states and 10856 transitions. [2024-11-23 23:53:15,807 INFO L78 Accepts]: Start accepts. Automaton has 7943 states and 10856 transitions. Word has length 70 [2024-11-23 23:53:15,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:15,808 INFO L471 AbstractCegarLoop]: Abstraction has 7943 states and 10856 transitions. [2024-11-23 23:53:15,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:15,808 INFO L276 IsEmpty]: Start isEmpty. Operand 7943 states and 10856 transitions. [2024-11-23 23:53:15,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-23 23:53:15,841 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:15,841 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] [2024-11-23 23:53:15,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-23 23:53:15,841 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:15,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:15,842 INFO L85 PathProgramCache]: Analyzing trace with hash -530798665, now seen corresponding path program 1 times [2024-11-23 23:53:15,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:15,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485968926] [2024-11-23 23:53:15,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:15,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:15,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:15,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:15,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485968926] [2024-11-23 23:53:15,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485968926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:15,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:15,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:53:15,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500450849] [2024-11-23 23:53:15,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:15,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:53:15,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:15,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:53:15,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:53:15,978 INFO L87 Difference]: Start difference. First operand 7943 states and 10856 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:16,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:16,092 INFO L93 Difference]: Finished difference Result 21459 states and 29506 transitions. [2024-11-23 23:53:16,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:53:16,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-23 23:53:16,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:16,125 INFO L225 Difference]: With dead ends: 21459 [2024-11-23 23:53:16,125 INFO L226 Difference]: Without dead ends: 14301 [2024-11-23 23:53:16,134 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 [2024-11-23 23:53:16,136 INFO L435 NwaCegarLoop]: 333 mSDtfsCounter, 103 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:16,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 552 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:53:16,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14301 states. [2024-11-23 23:53:16,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14301 to 13083. [2024-11-23 23:53:16,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13083 states, 13082 states have (on average 1.3640116190184988) internal successors, (17844), 13082 states have internal predecessors, (17844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:16,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13083 states to 13083 states and 17844 transitions. [2024-11-23 23:53:16,335 INFO L78 Accepts]: Start accepts. Automaton has 13083 states and 17844 transitions. Word has length 70 [2024-11-23 23:53:16,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:16,336 INFO L471 AbstractCegarLoop]: Abstraction has 13083 states and 17844 transitions. [2024-11-23 23:53:16,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:16,336 INFO L276 IsEmpty]: Start isEmpty. Operand 13083 states and 17844 transitions. [2024-11-23 23:53:16,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-23 23:53:16,340 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:16,340 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] [2024-11-23 23:53:16,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-23 23:53:16,340 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:16,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:16,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1176069985, now seen corresponding path program 1 times [2024-11-23 23:53:16,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:16,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843002800] [2024-11-23 23:53:16,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:16,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:16,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:16,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:16,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843002800] [2024-11-23 23:53:16,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843002800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:16,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:16,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:53:16,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958755139] [2024-11-23 23:53:16,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:16,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:53:16,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:16,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:53:16,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:53:16,711 INFO L87 Difference]: Start difference. First operand 13083 states and 17844 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:16,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:16,787 INFO L93 Difference]: Finished difference Result 14429 states and 19637 transitions. [2024-11-23 23:53:16,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:53:16,788 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-23 23:53:16,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:16,820 INFO L225 Difference]: With dead ends: 14429 [2024-11-23 23:53:16,820 INFO L226 Difference]: Without dead ends: 14427 [2024-11-23 23:53:16,825 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:53:16,825 INFO L435 NwaCegarLoop]: 277 mSDtfsCounter, 0 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:16,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1375 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:53:16,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14427 states. [2024-11-23 23:53:16,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14427 to 14427. [2024-11-23 23:53:17,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14427 states, 14426 states have (on average 1.3300984333841674) internal successors, (19188), 14426 states have internal predecessors, (19188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:17,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14427 states to 14427 states and 19188 transitions. [2024-11-23 23:53:17,128 INFO L78 Accepts]: Start accepts. Automaton has 14427 states and 19188 transitions. Word has length 72 [2024-11-23 23:53:17,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:17,129 INFO L471 AbstractCegarLoop]: Abstraction has 14427 states and 19188 transitions. [2024-11-23 23:53:17,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:17,129 INFO L276 IsEmpty]: Start isEmpty. Operand 14427 states and 19188 transitions. [2024-11-23 23:53:17,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-23 23:53:17,133 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:17,133 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] [2024-11-23 23:53:17,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-23 23:53:17,134 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:17,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:17,134 INFO L85 PathProgramCache]: Analyzing trace with hash 406807320, now seen corresponding path program 1 times [2024-11-23 23:53:17,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:17,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673194265] [2024-11-23 23:53:17,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:17,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:17,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:17,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:17,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673194265] [2024-11-23 23:53:17,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673194265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:17,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:17,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:53:17,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867674629] [2024-11-23 23:53:17,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:17,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:53:17,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:17,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:53:17,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:53:17,253 INFO L87 Difference]: Start difference. First operand 14427 states and 19188 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:17,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:17,441 INFO L93 Difference]: Finished difference Result 34951 states and 46558 transitions. [2024-11-23 23:53:17,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:53:17,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-23 23:53:17,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:17,497 INFO L225 Difference]: With dead ends: 34951 [2024-11-23 23:53:17,498 INFO L226 Difference]: Without dead ends: 21309 [2024-11-23 23:53:17,516 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 [2024-11-23 23:53:17,517 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 196 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:17,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 406 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:53:17,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21309 states. [2024-11-23 23:53:17,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21309 to 21083. [2024-11-23 23:53:17,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21083 states, 21082 states have (on average 1.3101223792809031) internal successors, (27620), 21082 states have internal predecessors, (27620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:17,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21083 states to 21083 states and 27620 transitions. [2024-11-23 23:53:17,942 INFO L78 Accepts]: Start accepts. Automaton has 21083 states and 27620 transitions. Word has length 73 [2024-11-23 23:53:17,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:17,942 INFO L471 AbstractCegarLoop]: Abstraction has 21083 states and 27620 transitions. [2024-11-23 23:53:17,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:17,942 INFO L276 IsEmpty]: Start isEmpty. Operand 21083 states and 27620 transitions. [2024-11-23 23:53:17,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-23 23:53:17,946 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:17,946 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] [2024-11-23 23:53:17,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-23 23:53:17,947 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:17,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:17,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1519050461, now seen corresponding path program 1 times [2024-11-23 23:53:17,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:17,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615021859] [2024-11-23 23:53:17,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:17,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:18,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:18,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:18,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615021859] [2024-11-23 23:53:18,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615021859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:18,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:18,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:53:18,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821442653] [2024-11-23 23:53:18,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:18,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:53:18,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:18,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:53:18,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:53:18,095 INFO L87 Difference]: Start difference. First operand 21083 states and 27620 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:18,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:18,363 INFO L93 Difference]: Finished difference Result 31123 states and 41009 transitions. [2024-11-23 23:53:18,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:53:18,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-23 23:53:18,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:18,424 INFO L225 Difference]: With dead ends: 31123 [2024-11-23 23:53:18,425 INFO L226 Difference]: Without dead ends: 26453 [2024-11-23 23:53:18,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:53:18,436 INFO L435 NwaCegarLoop]: 373 mSDtfsCounter, 664 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:18,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 821 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:53:18,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26453 states. [2024-11-23 23:53:18,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26453 to 24107. [2024-11-23 23:53:18,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24107 states, 24106 states have (on average 1.3072679001078569) internal successors, (31513), 24106 states have internal predecessors, (31513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:18,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24107 states to 24107 states and 31513 transitions. [2024-11-23 23:53:18,788 INFO L78 Accepts]: Start accepts. Automaton has 24107 states and 31513 transitions. Word has length 74 [2024-11-23 23:53:18,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:18,788 INFO L471 AbstractCegarLoop]: Abstraction has 24107 states and 31513 transitions. [2024-11-23 23:53:18,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:18,788 INFO L276 IsEmpty]: Start isEmpty. Operand 24107 states and 31513 transitions. [2024-11-23 23:53:18,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-23 23:53:18,792 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:18,793 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] [2024-11-23 23:53:18,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-23 23:53:18,793 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:18,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:18,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1077353059, now seen corresponding path program 1 times [2024-11-23 23:53:18,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:18,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573862859] [2024-11-23 23:53:18,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:18,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:18,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:18,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:18,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573862859] [2024-11-23 23:53:18,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573862859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:18,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:18,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:53:18,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215108253] [2024-11-23 23:53:18,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:18,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:53:18,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:18,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:53:18,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:53:18,952 INFO L87 Difference]: Start difference. First operand 24107 states and 31513 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:19,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:19,231 INFO L93 Difference]: Finished difference Result 32463 states and 42637 transitions. [2024-11-23 23:53:19,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:53:19,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-23 23:53:19,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:19,295 INFO L225 Difference]: With dead ends: 32463 [2024-11-23 23:53:19,295 INFO L226 Difference]: Without dead ends: 27889 [2024-11-23 23:53:19,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:53:19,307 INFO L435 NwaCegarLoop]: 362 mSDtfsCounter, 668 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:19,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 821 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:53:19,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27889 states. [2024-11-23 23:53:19,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27889 to 27075. [2024-11-23 23:53:19,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27075 states, 27074 states have (on average 1.3047573317574057) internal successors, (35325), 27074 states have internal predecessors, (35325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:19,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27075 states to 27075 states and 35325 transitions. [2024-11-23 23:53:19,676 INFO L78 Accepts]: Start accepts. Automaton has 27075 states and 35325 transitions. Word has length 76 [2024-11-23 23:53:19,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:19,676 INFO L471 AbstractCegarLoop]: Abstraction has 27075 states and 35325 transitions. [2024-11-23 23:53:19,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:19,676 INFO L276 IsEmpty]: Start isEmpty. Operand 27075 states and 35325 transitions. [2024-11-23 23:53:19,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-23 23:53:19,689 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:19,689 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:53:19,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-23 23:53:19,690 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:19,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:19,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1899335398, now seen corresponding path program 1 times [2024-11-23 23:53:19,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:19,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259451670] [2024-11-23 23:53:19,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:19,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:20,194 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-23 23:53:20,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:20,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259451670] [2024-11-23 23:53:20,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259451670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:20,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:20,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:53:20,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009234934] [2024-11-23 23:53:20,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:20,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:53:20,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:20,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:53:20,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:53:20,196 INFO L87 Difference]: Start difference. First operand 27075 states and 35325 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:21,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:21,191 INFO L93 Difference]: Finished difference Result 52242 states and 67948 transitions. [2024-11-23 23:53:21,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 23:53:21,192 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-23 23:53:21,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:21,258 INFO L225 Difference]: With dead ends: 52242 [2024-11-23 23:53:21,259 INFO L226 Difference]: Without dead ends: 34248 [2024-11-23 23:53:21,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:53:21,279 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 1168 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:21,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 922 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:53:21,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34248 states. [2024-11-23 23:53:21,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34248 to 26959. [2024-11-23 23:53:21,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26959 states, 26958 states have (on average 1.3050300467393723) internal successors, (35181), 26958 states have internal predecessors, (35181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:21,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26959 states to 26959 states and 35181 transitions. [2024-11-23 23:53:21,879 INFO L78 Accepts]: Start accepts. Automaton has 26959 states and 35181 transitions. Word has length 92 [2024-11-23 23:53:21,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:21,880 INFO L471 AbstractCegarLoop]: Abstraction has 26959 states and 35181 transitions. [2024-11-23 23:53:21,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:21,880 INFO L276 IsEmpty]: Start isEmpty. Operand 26959 states and 35181 transitions. [2024-11-23 23:53:21,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-23 23:53:21,896 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:21,896 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:53:21,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-23 23:53:21,897 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:21,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:21,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1332578409, now seen corresponding path program 1 times [2024-11-23 23:53:21,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:21,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708719265] [2024-11-23 23:53:21,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:21,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:22,640 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:22,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:22,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708719265] [2024-11-23 23:53:22,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708719265] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:53:22,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520176208] [2024-11-23 23:53:22,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:22,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:22,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:53:22,647 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:53:22,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:53:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:23,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 23:53:23,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:53:23,366 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:23,367 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:53:23,775 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:23,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520176208] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:53:23,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:53:23,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 19 [2024-11-23 23:53:23,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019647827] [2024-11-23 23:53:23,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:53:23,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-23 23:53:23,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:23,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-23 23:53:23,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:53:23,784 INFO L87 Difference]: Start difference. First operand 26959 states and 35181 transitions. Second operand has 19 states, 19 states have (on average 13.894736842105264) internal successors, (264), 19 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:28,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:28,660 INFO L93 Difference]: Finished difference Result 132699 states and 171237 transitions. [2024-11-23 23:53:28,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-23 23:53:28,661 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.894736842105264) internal successors, (264), 19 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-23 23:53:28,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:28,832 INFO L225 Difference]: With dead ends: 132699 [2024-11-23 23:53:28,832 INFO L226 Difference]: Without dead ends: 106417 [2024-11-23 23:53:28,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1517 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=969, Invalid=4287, Unknown=0, NotChecked=0, Total=5256 [2024-11-23 23:53:28,860 INFO L435 NwaCegarLoop]: 280 mSDtfsCounter, 4050 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 2462 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4050 SdHoareTripleChecker+Valid, 2441 SdHoareTripleChecker+Invalid, 2506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:28,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4050 Valid, 2441 Invalid, 2506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2462 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-23 23:53:28,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106417 states. [2024-11-23 23:53:29,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106417 to 68983. [2024-11-23 23:53:29,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68983 states, 68982 states have (on average 1.2961787132875242) internal successors, (89413), 68982 states have internal predecessors, (89413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:30,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68983 states to 68983 states and 89413 transitions. [2024-11-23 23:53:30,116 INFO L78 Accepts]: Start accepts. Automaton has 68983 states and 89413 transitions. Word has length 92 [2024-11-23 23:53:30,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:30,117 INFO L471 AbstractCegarLoop]: Abstraction has 68983 states and 89413 transitions. [2024-11-23 23:53:30,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.894736842105264) internal successors, (264), 19 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:30,117 INFO L276 IsEmpty]: Start isEmpty. Operand 68983 states and 89413 transitions. [2024-11-23 23:53:30,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-23 23:53:30,131 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:30,131 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:53:30,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:53:30,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:30,336 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:30,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:30,337 INFO L85 PathProgramCache]: Analyzing trace with hash 6796303, now seen corresponding path program 1 times [2024-11-23 23:53:30,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:30,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376382277] [2024-11-23 23:53:30,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:30,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:30,469 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:30,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:30,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376382277] [2024-11-23 23:53:30,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376382277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:30,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:30,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:53:30,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084767548] [2024-11-23 23:53:30,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:30,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:53:30,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:30,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:53:30,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:53:30,472 INFO L87 Difference]: Start difference. First operand 68983 states and 89413 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:31,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:31,747 INFO L93 Difference]: Finished difference Result 139211 states and 180003 transitions. [2024-11-23 23:53:31,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:53:31,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-23 23:53:31,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:31,862 INFO L225 Difference]: With dead ends: 139211 [2024-11-23 23:53:31,862 INFO L226 Difference]: Without dead ends: 71025 [2024-11-23 23:53:31,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:53:31,902 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 504 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:31,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 492 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:53:31,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71025 states. [2024-11-23 23:53:32,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71025 to 66571. [2024-11-23 23:53:32,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66571 states, 66570 states have (on average 1.2732912723449001) internal successors, (84763), 66570 states have internal predecessors, (84763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:32,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66571 states to 66571 states and 84763 transitions. [2024-11-23 23:53:32,979 INFO L78 Accepts]: Start accepts. Automaton has 66571 states and 84763 transitions. Word has length 94 [2024-11-23 23:53:32,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:32,980 INFO L471 AbstractCegarLoop]: Abstraction has 66571 states and 84763 transitions. [2024-11-23 23:53:32,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:32,980 INFO L276 IsEmpty]: Start isEmpty. Operand 66571 states and 84763 transitions. [2024-11-23 23:53:32,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-23 23:53:32,991 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:32,991 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:53:32,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-23 23:53:32,992 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:32,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:32,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1742609083, now seen corresponding path program 1 times [2024-11-23 23:53:32,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:32,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443915420] [2024-11-23 23:53:32,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:32,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:33,164 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:33,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:33,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443915420] [2024-11-23 23:53:33,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443915420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:33,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:33,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:53:33,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750928320] [2024-11-23 23:53:33,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:33,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:53:33,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:33,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:53:33,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:53:33,167 INFO L87 Difference]: Start difference. First operand 66571 states and 84763 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:33,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:33,850 INFO L93 Difference]: Finished difference Result 86727 states and 111133 transitions. [2024-11-23 23:53:33,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:53:33,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-23 23:53:33,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:34,197 INFO L225 Difference]: With dead ends: 86727 [2024-11-23 23:53:34,197 INFO L226 Difference]: Without dead ends: 76423 [2024-11-23 23:53:34,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:53:34,210 INFO L435 NwaCegarLoop]: 349 mSDtfsCounter, 596 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:34,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 874 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:53:34,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76423 states. [2024-11-23 23:53:35,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76423 to 74151. [2024-11-23 23:53:35,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74151 states, 74150 states have (on average 1.2715441672285908) internal successors, (94285), 74150 states have internal predecessors, (94285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:35,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74151 states to 74151 states and 94285 transitions. [2024-11-23 23:53:35,452 INFO L78 Accepts]: Start accepts. Automaton has 74151 states and 94285 transitions. Word has length 98 [2024-11-23 23:53:35,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:35,452 INFO L471 AbstractCegarLoop]: Abstraction has 74151 states and 94285 transitions. [2024-11-23 23:53:35,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:35,453 INFO L276 IsEmpty]: Start isEmpty. Operand 74151 states and 94285 transitions. [2024-11-23 23:53:35,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-23 23:53:35,468 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:35,469 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:53:35,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-23 23:53:35,469 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:35,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:35,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1074075595, now seen corresponding path program 1 times [2024-11-23 23:53:35,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:35,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702983166] [2024-11-23 23:53:35,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:35,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:35,547 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 23:53:35,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:35,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702983166] [2024-11-23 23:53:35,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702983166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:35,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:35,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:53:35,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510144090] [2024-11-23 23:53:35,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:35,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:53:35,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:35,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:53:35,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:53:35,549 INFO L87 Difference]: Start difference. First operand 74151 states and 94285 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:36,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:36,375 INFO L93 Difference]: Finished difference Result 138917 states and 176808 transitions. [2024-11-23 23:53:36,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:53:36,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-23 23:53:36,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:36,488 INFO L225 Difference]: With dead ends: 138917 [2024-11-23 23:53:36,488 INFO L226 Difference]: Without dead ends: 65563 [2024-11-23 23:53:36,528 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 [2024-11-23 23:53:36,529 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 208 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:36,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 250 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:53:36,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65563 states. [2024-11-23 23:53:37,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65563 to 64037. [2024-11-23 23:53:37,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64037 states, 64036 states have (on average 1.253685426947342) internal successors, (80281), 64036 states have internal predecessors, (80281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:38,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64037 states to 64037 states and 80281 transitions. [2024-11-23 23:53:38,011 INFO L78 Accepts]: Start accepts. Automaton has 64037 states and 80281 transitions. Word has length 99 [2024-11-23 23:53:38,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:38,012 INFO L471 AbstractCegarLoop]: Abstraction has 64037 states and 80281 transitions. [2024-11-23 23:53:38,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:38,012 INFO L276 IsEmpty]: Start isEmpty. Operand 64037 states and 80281 transitions. [2024-11-23 23:53:38,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-23 23:53:38,027 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:38,028 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:53:38,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-23 23:53:38,028 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:38,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:38,029 INFO L85 PathProgramCache]: Analyzing trace with hash 231609904, now seen corresponding path program 1 times [2024-11-23 23:53:38,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:38,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277821016] [2024-11-23 23:53:38,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:38,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:38,207 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:38,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:38,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277821016] [2024-11-23 23:53:38,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277821016] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:53:38,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086870590] [2024-11-23 23:53:38,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:38,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:38,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:53:38,211 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:53:38,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:53:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:38,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:53:38,609 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:53:39,176 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:39,176 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:53:39,500 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:39,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086870590] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:53:39,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:53:39,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-23 23:53:39,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594545378] [2024-11-23 23:53:39,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:53:39,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:53:39,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:39,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:53:39,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:53:39,503 INFO L87 Difference]: Start difference. First operand 64037 states and 80281 transitions. Second operand has 14 states, 14 states have (on average 18.642857142857142) internal successors, (261), 14 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:40,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:40,746 INFO L93 Difference]: Finished difference Result 143502 states and 179778 transitions. [2024-11-23 23:53:40,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:53:40,747 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.642857142857142) internal successors, (261), 14 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-23 23:53:40,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:40,866 INFO L225 Difference]: With dead ends: 143502 [2024-11-23 23:53:40,866 INFO L226 Difference]: Without dead ends: 80153 [2024-11-23 23:53:40,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 190 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:53:40,919 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 2122 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2122 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:40,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2122 Valid, 1108 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:53:40,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80153 states. [2024-11-23 23:53:42,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80153 to 67636. [2024-11-23 23:53:42,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67636 states, 67635 states have (on average 1.2336364308420196) internal successors, (83437), 67635 states have internal predecessors, (83437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:42,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67636 states to 67636 states and 83437 transitions. [2024-11-23 23:53:42,171 INFO L78 Accepts]: Start accepts. Automaton has 67636 states and 83437 transitions. Word has length 99 [2024-11-23 23:53:42,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:42,171 INFO L471 AbstractCegarLoop]: Abstraction has 67636 states and 83437 transitions. [2024-11-23 23:53:42,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.642857142857142) internal successors, (261), 14 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:42,171 INFO L276 IsEmpty]: Start isEmpty. Operand 67636 states and 83437 transitions. [2024-11-23 23:53:42,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-23 23:53:42,470 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:42,470 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:53:42,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 23:53:42,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:42,671 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:42,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:42,672 INFO L85 PathProgramCache]: Analyzing trace with hash 584387519, now seen corresponding path program 1 times [2024-11-23 23:53:42,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:42,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157169068] [2024-11-23 23:53:42,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:42,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:42,849 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-23 23:53:42,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:42,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157169068] [2024-11-23 23:53:42,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157169068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:42,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:42,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:53:42,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872396176] [2024-11-23 23:53:42,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:42,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:53:42,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:42,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:53:42,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:53:42,851 INFO L87 Difference]: Start difference. First operand 67636 states and 83437 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:43,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:43,627 INFO L93 Difference]: Finished difference Result 99124 states and 120948 transitions. [2024-11-23 23:53:43,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:53:43,627 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2024-11-23 23:53:43,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:43,712 INFO L225 Difference]: With dead ends: 99124 [2024-11-23 23:53:43,712 INFO L226 Difference]: Without dead ends: 86196 [2024-11-23 23:53:43,733 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:53:43,734 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 1213 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:43,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1213 Valid, 509 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:53:43,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86196 states. [2024-11-23 23:53:44,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86196 to 67686. [2024-11-23 23:53:44,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67686 states, 67685 states have (on average 1.2335524857797149) internal successors, (83493), 67685 states have internal predecessors, (83493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:44,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67686 states to 67686 states and 83493 transitions. [2024-11-23 23:53:44,692 INFO L78 Accepts]: Start accepts. Automaton has 67686 states and 83493 transitions. Word has length 102 [2024-11-23 23:53:44,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:44,692 INFO L471 AbstractCegarLoop]: Abstraction has 67686 states and 83493 transitions. [2024-11-23 23:53:44,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:44,693 INFO L276 IsEmpty]: Start isEmpty. Operand 67686 states and 83493 transitions. [2024-11-23 23:53:44,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-23 23:53:44,705 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:44,705 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:53:44,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-23 23:53:44,706 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:44,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:44,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1917669153, now seen corresponding path program 1 times [2024-11-23 23:53:44,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:44,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998123837] [2024-11-23 23:53:44,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:44,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:44,789 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:44,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:44,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998123837] [2024-11-23 23:53:44,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998123837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:44,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:44,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:53:44,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041499430] [2024-11-23 23:53:44,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:44,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:53:44,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:44,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:53:44,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:53:44,792 INFO L87 Difference]: Start difference. First operand 67686 states and 83493 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:45,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:45,372 INFO L93 Difference]: Finished difference Result 96894 states and 119388 transitions. [2024-11-23 23:53:45,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:53:45,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2024-11-23 23:53:45,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:45,453 INFO L225 Difference]: With dead ends: 96894 [2024-11-23 23:53:45,454 INFO L226 Difference]: Without dead ends: 77048 [2024-11-23 23:53:45,468 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 [2024-11-23 23:53:45,468 INFO L435 NwaCegarLoop]: 374 mSDtfsCounter, 117 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:45,469 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 599 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:53:45,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77048 states. [2024-11-23 23:53:46,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77048 to 67686. [2024-11-23 23:53:46,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67686 states, 67685 states have (on average 1.2284701189332938) internal successors, (83149), 67685 states have internal predecessors, (83149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:46,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67686 states to 67686 states and 83149 transitions. [2024-11-23 23:53:46,997 INFO L78 Accepts]: Start accepts. Automaton has 67686 states and 83149 transitions. Word has length 102 [2024-11-23 23:53:46,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:46,997 INFO L471 AbstractCegarLoop]: Abstraction has 67686 states and 83149 transitions. [2024-11-23 23:53:46,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:46,998 INFO L276 IsEmpty]: Start isEmpty. Operand 67686 states and 83149 transitions. [2024-11-23 23:53:47,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 23:53:47,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:47,010 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:53:47,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-23 23:53:47,011 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:47,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:47,011 INFO L85 PathProgramCache]: Analyzing trace with hash 739978741, now seen corresponding path program 1 times [2024-11-23 23:53:47,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:47,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090303818] [2024-11-23 23:53:47,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:47,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:47,111 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-23 23:53:47,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:47,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090303818] [2024-11-23 23:53:47,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090303818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:47,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:47,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:53:47,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976021237] [2024-11-23 23:53:47,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:47,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:53:47,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:47,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:53:47,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:53:47,114 INFO L87 Difference]: Start difference. First operand 67686 states and 83149 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:47,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:47,702 INFO L93 Difference]: Finished difference Result 144808 states and 176890 transitions. [2024-11-23 23:53:47,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:53:47,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-23 23:53:47,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:47,821 INFO L225 Difference]: With dead ends: 144808 [2024-11-23 23:53:47,821 INFO L226 Difference]: Without dead ends: 113100 [2024-11-23 23:53:47,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:53:47,852 INFO L435 NwaCegarLoop]: 305 mSDtfsCounter, 155 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:47,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 679 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:53:47,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113100 states. [2024-11-23 23:53:49,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113100 to 83389. [2024-11-23 23:53:49,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83389 states, 83388 states have (on average 1.229709310692186) internal successors, (102543), 83388 states have internal predecessors, (102543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:49,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83389 states to 83389 states and 102543 transitions. [2024-11-23 23:53:49,204 INFO L78 Accepts]: Start accepts. Automaton has 83389 states and 102543 transitions. Word has length 103 [2024-11-23 23:53:49,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:49,204 INFO L471 AbstractCegarLoop]: Abstraction has 83389 states and 102543 transitions. [2024-11-23 23:53:49,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:49,205 INFO L276 IsEmpty]: Start isEmpty. Operand 83389 states and 102543 transitions. [2024-11-23 23:53:49,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 23:53:49,216 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:49,216 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:53:49,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-23 23:53:49,216 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:49,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:49,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1833657680, now seen corresponding path program 1 times [2024-11-23 23:53:49,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:49,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750359076] [2024-11-23 23:53:49,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:49,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:49,292 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:49,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:49,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750359076] [2024-11-23 23:53:49,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750359076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:49,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:49,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:53:49,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898397418] [2024-11-23 23:53:49,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:49,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:53:49,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:49,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:53:49,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:53:49,294 INFO L87 Difference]: Start difference. First operand 83389 states and 102543 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:50,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:50,000 INFO L93 Difference]: Finished difference Result 172768 states and 212330 transitions. [2024-11-23 23:53:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:53:50,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-23 23:53:50,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:50,134 INFO L225 Difference]: With dead ends: 172768 [2024-11-23 23:53:50,134 INFO L226 Difference]: Without dead ends: 125361 [2024-11-23 23:53:50,171 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 [2024-11-23 23:53:50,171 INFO L435 NwaCegarLoop]: 367 mSDtfsCounter, 89 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:50,172 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 593 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:53:50,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125361 states. [2024-11-23 23:53:51,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125361 to 89691. [2024-11-23 23:53:51,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89691 states, 89690 states have (on average 1.2218864979373398) internal successors, (109591), 89690 states have internal predecessors, (109591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:52,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89691 states to 89691 states and 109591 transitions. [2024-11-23 23:53:52,005 INFO L78 Accepts]: Start accepts. Automaton has 89691 states and 109591 transitions. Word has length 103 [2024-11-23 23:53:52,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:52,005 INFO L471 AbstractCegarLoop]: Abstraction has 89691 states and 109591 transitions. [2024-11-23 23:53:52,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:53:52,005 INFO L276 IsEmpty]: Start isEmpty. Operand 89691 states and 109591 transitions. [2024-11-23 23:53:52,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 23:53:52,026 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:52,026 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:53:52,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-23 23:53:52,026 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:53:52,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:52,027 INFO L85 PathProgramCache]: Analyzing trace with hash -456455511, now seen corresponding path program 1 times [2024-11-23 23:53:52,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:52,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593246632] [2024-11-23 23:53:52,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:52,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:53,128 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:53,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:53,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593246632] [2024-11-23 23:53:53,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593246632] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:53:53,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440702068] [2024-11-23 23:53:53,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:53,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:53,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:53:53,132 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:53:53,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:53:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:53,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-23 23:53:53,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:53:56,823 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:56,824 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:53:59,755 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:53:59,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440702068] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:53:59,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:53:59,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 16, 16] total 38 [2024-11-23 23:53:59,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555453228] [2024-11-23 23:53:59,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:53:59,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-23 23:53:59,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:59,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-23 23:53:59,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1308, Unknown=0, NotChecked=0, Total=1482 [2024-11-23 23:53:59,758 INFO L87 Difference]: Start difference. First operand 89691 states and 109591 transitions. Second operand has 39 states, 39 states have (on average 7.153846153846154) internal successors, (279), 38 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:08,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:08,517 INFO L93 Difference]: Finished difference Result 263103 states and 319738 transitions. [2024-11-23 23:54:08,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2024-11-23 23:54:08,518 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 7.153846153846154) internal successors, (279), 38 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-23 23:54:08,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:09,157 INFO L225 Difference]: With dead ends: 263103 [2024-11-23 23:54:09,158 INFO L226 Difference]: Without dead ends: 227055 [2024-11-23 23:54:09,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 175 SyntacticMatches, 1 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3787 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=2223, Invalid=9333, Unknown=0, NotChecked=0, Total=11556 [2024-11-23 23:54:09,212 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 7202 mSDsluCounter, 4324 mSDsCounter, 0 mSdLazyCounter, 4196 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7202 SdHoareTripleChecker+Valid, 4554 SdHoareTripleChecker+Invalid, 4365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 4196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:09,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7202 Valid, 4554 Invalid, 4365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 4196 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-23 23:54:09,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227055 states. [2024-11-23 23:54:11,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227055 to 90212. [2024-11-23 23:54:11,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90212 states, 90211 states have (on average 1.221702453137644) internal successors, (110211), 90211 states have internal predecessors, (110211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:11,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90212 states to 90212 states and 110211 transitions. [2024-11-23 23:54:11,415 INFO L78 Accepts]: Start accepts. Automaton has 90212 states and 110211 transitions. Word has length 103 [2024-11-23 23:54:11,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:11,415 INFO L471 AbstractCegarLoop]: Abstraction has 90212 states and 110211 transitions. [2024-11-23 23:54:11,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 7.153846153846154) internal successors, (279), 38 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:11,415 INFO L276 IsEmpty]: Start isEmpty. Operand 90212 states and 110211 transitions. [2024-11-23 23:54:11,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 23:54:11,433 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:11,433 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:54:11,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 23:54:11,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:54:11,638 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:54:11,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:11,640 INFO L85 PathProgramCache]: Analyzing trace with hash 12009594, now seen corresponding path program 1 times [2024-11-23 23:54:11,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:11,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640156541] [2024-11-23 23:54:11,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:11,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:12,092 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:12,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:12,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640156541] [2024-11-23 23:54:12,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640156541] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:54:12,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468440002] [2024-11-23 23:54:12,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:12,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:54:12,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:54:12,097 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:54:12,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:54:12,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:12,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:54:12,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:54:12,874 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:12,874 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:54:13,113 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:13,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468440002] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:54:13,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:54:13,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-23 23:54:13,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002406371] [2024-11-23 23:54:13,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:54:13,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:54:13,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:13,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:54:13,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:54:13,116 INFO L87 Difference]: Start difference. First operand 90212 states and 110211 transitions. Second operand has 14 states, 14 states have (on average 20.214285714285715) internal successors, (283), 14 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:14,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:14,407 INFO L93 Difference]: Finished difference Result 203754 states and 247822 transitions. [2024-11-23 23:54:14,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:54:14,407 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 20.214285714285715) internal successors, (283), 14 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-23 23:54:14,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:14,558 INFO L225 Difference]: With dead ends: 203754 [2024-11-23 23:54:14,558 INFO L226 Difference]: Without dead ends: 114929 [2024-11-23 23:54:14,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 198 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:54:14,602 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 2066 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:14,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 1044 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:54:14,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114929 states. [2024-11-23 23:54:16,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114929 to 99192. [2024-11-23 23:54:16,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99192 states, 99191 states have (on average 1.2182657700799469) internal successors, (120841), 99191 states have internal predecessors, (120841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:16,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99192 states to 99192 states and 120841 transitions. [2024-11-23 23:54:16,373 INFO L78 Accepts]: Start accepts. Automaton has 99192 states and 120841 transitions. Word has length 103 [2024-11-23 23:54:16,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:16,373 INFO L471 AbstractCegarLoop]: Abstraction has 99192 states and 120841 transitions. [2024-11-23 23:54:16,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.214285714285715) internal successors, (283), 14 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:16,373 INFO L276 IsEmpty]: Start isEmpty. Operand 99192 states and 120841 transitions. [2024-11-23 23:54:16,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 23:54:16,385 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:16,386 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:54:16,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 23:54:16,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:54:16,586 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:54:16,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:16,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1298923138, now seen corresponding path program 1 times [2024-11-23 23:54:16,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:16,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340174533] [2024-11-23 23:54:16,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:16,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:16,999 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-23 23:54:16,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:17,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340174533] [2024-11-23 23:54:17,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340174533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:17,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:17,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:54:17,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078171782] [2024-11-23 23:54:17,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:17,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:54:17,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:17,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:54:17,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:54:17,002 INFO L87 Difference]: Start difference. First operand 99192 states and 120841 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:18,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:18,162 INFO L93 Difference]: Finished difference Result 163797 states and 199299 transitions. [2024-11-23 23:54:18,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:54:18,167 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-23 23:54:18,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:18,265 INFO L225 Difference]: With dead ends: 163797 [2024-11-23 23:54:18,266 INFO L226 Difference]: Without dead ends: 99306 [2024-11-23 23:54:18,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:54:18,290 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 1440 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:18,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1440 Valid, 739 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:54:18,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99306 states. [2024-11-23 23:54:19,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99306 to 99096. [2024-11-23 23:54:19,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99096 states, 99095 states have (on average 1.2183258489328421) internal successors, (120730), 99095 states have internal predecessors, (120730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:19,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99096 states to 99096 states and 120730 transitions. [2024-11-23 23:54:19,867 INFO L78 Accepts]: Start accepts. Automaton has 99096 states and 120730 transitions. Word has length 103 [2024-11-23 23:54:19,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:19,868 INFO L471 AbstractCegarLoop]: Abstraction has 99096 states and 120730 transitions. [2024-11-23 23:54:19,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:19,868 INFO L276 IsEmpty]: Start isEmpty. Operand 99096 states and 120730 transitions. [2024-11-23 23:54:19,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-23 23:54:19,889 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:19,889 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:54:19,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-23 23:54:19,890 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:54:19,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:19,890 INFO L85 PathProgramCache]: Analyzing trace with hash 851478806, now seen corresponding path program 1 times [2024-11-23 23:54:19,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:19,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116389063] [2024-11-23 23:54:19,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:19,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:20,951 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:20,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:20,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116389063] [2024-11-23 23:54:20,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116389063] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:54:20,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012585932] [2024-11-23 23:54:20,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:20,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:54:20,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:54:20,955 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:54:20,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 23:54:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:21,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-23 23:54:21,300 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:54:22,538 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:22,538 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:54:22,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012585932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:22,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:54:22,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-23 23:54:22,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375432596] [2024-11-23 23:54:22,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:22,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:54:22,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:22,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:54:22,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:54:22,540 INFO L87 Difference]: Start difference. First operand 99096 states and 120730 transitions. Second operand has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 11 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:24,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:24,643 INFO L93 Difference]: Finished difference Result 176181 states and 215607 transitions. [2024-11-23 23:54:24,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 23:54:24,644 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 11 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-23 23:54:24,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:24,812 INFO L225 Difference]: With dead ends: 176181 [2024-11-23 23:54:24,812 INFO L226 Difference]: Without dead ends: 158785 [2024-11-23 23:54:24,849 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=172, Invalid=884, Unknown=0, NotChecked=0, Total=1056 [2024-11-23 23:54:24,850 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 794 mSDsluCounter, 1573 mSDsCounter, 0 mSdLazyCounter, 1498 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 1816 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:24,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 1816 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1498 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 23:54:24,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158785 states. [2024-11-23 23:54:26,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158785 to 119729. [2024-11-23 23:54:26,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119729 states, 119728 states have (on average 1.2209508218628893) internal successors, (146182), 119728 states have internal predecessors, (146182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:26,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119729 states to 119729 states and 146182 transitions. [2024-11-23 23:54:26,656 INFO L78 Accepts]: Start accepts. Automaton has 119729 states and 146182 transitions. Word has length 104 [2024-11-23 23:54:26,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:26,656 INFO L471 AbstractCegarLoop]: Abstraction has 119729 states and 146182 transitions. [2024-11-23 23:54:26,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 11 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:26,657 INFO L276 IsEmpty]: Start isEmpty. Operand 119729 states and 146182 transitions. [2024-11-23 23:54:26,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-23 23:54:26,671 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:26,672 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:54:26,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-23 23:54:26,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:54:26,872 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:54:26,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:26,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1362208024, now seen corresponding path program 1 times [2024-11-23 23:54:26,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:26,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515429088] [2024-11-23 23:54:26,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:26,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:27,180 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:27,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:27,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515429088] [2024-11-23 23:54:27,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515429088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:27,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:27,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:54:27,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551186440] [2024-11-23 23:54:27,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:27,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:54:27,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:27,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:54:27,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:54:27,182 INFO L87 Difference]: Start difference. First operand 119729 states and 146182 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:28,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:28,652 INFO L93 Difference]: Finished difference Result 188682 states and 230242 transitions. [2024-11-23 23:54:28,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:54:28,653 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-23 23:54:28,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:28,846 INFO L225 Difference]: With dead ends: 188682 [2024-11-23 23:54:28,846 INFO L226 Difference]: Without dead ends: 158501 [2024-11-23 23:54:28,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2024-11-23 23:54:28,887 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 1081 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:28,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1081 Valid, 1020 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:54:28,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158501 states. [2024-11-23 23:54:31,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158501 to 136075. [2024-11-23 23:54:31,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136075 states, 136074 states have (on average 1.2195202610344371) internal successors, (165945), 136074 states have internal predecessors, (165945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:31,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136075 states to 136075 states and 165945 transitions. [2024-11-23 23:54:31,361 INFO L78 Accepts]: Start accepts. Automaton has 136075 states and 165945 transitions. Word has length 104 [2024-11-23 23:54:31,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:31,362 INFO L471 AbstractCegarLoop]: Abstraction has 136075 states and 165945 transitions. [2024-11-23 23:54:31,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:31,362 INFO L276 IsEmpty]: Start isEmpty. Operand 136075 states and 165945 transitions. [2024-11-23 23:54:31,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 23:54:31,376 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:31,376 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:54:31,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-23 23:54:31,376 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:54:31,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:31,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1549092557, now seen corresponding path program 1 times [2024-11-23 23:54:31,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:31,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210875626] [2024-11-23 23:54:31,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:31,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:32,102 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:32,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:32,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210875626] [2024-11-23 23:54:32,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210875626] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:54:32,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432189573] [2024-11-23 23:54:32,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:32,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:54:32,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:54:32,106 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:54:32,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 23:54:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:32,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-23 23:54:32,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:54:34,720 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:34,721 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:54:36,666 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:36,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432189573] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:54:36,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:54:36,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16, 14] total 39 [2024-11-23 23:54:36,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388002873] [2024-11-23 23:54:36,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:54:36,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-23 23:54:36,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:36,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-23 23:54:36,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=1344, Unknown=0, NotChecked=0, Total=1482 [2024-11-23 23:54:36,670 INFO L87 Difference]: Start difference. First operand 136075 states and 165945 transitions. Second operand has 39 states, 39 states have (on average 7.128205128205129) internal successors, (278), 39 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:42,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:42,554 INFO L93 Difference]: Finished difference Result 205927 states and 250138 transitions. [2024-11-23 23:54:42,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-23 23:54:42,554 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 7.128205128205129) internal successors, (278), 39 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-23 23:54:42,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:42,753 INFO L225 Difference]: With dead ends: 205927 [2024-11-23 23:54:42,753 INFO L226 Difference]: Without dead ends: 192743 [2024-11-23 23:54:42,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 186 SyntacticMatches, 1 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1740 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1110, Invalid=5862, Unknown=0, NotChecked=0, Total=6972 [2024-11-23 23:54:42,785 INFO L435 NwaCegarLoop]: 401 mSDtfsCounter, 3437 mSDsluCounter, 8349 mSDsCounter, 0 mSdLazyCounter, 2367 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3437 SdHoareTripleChecker+Valid, 8750 SdHoareTripleChecker+Invalid, 2425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:42,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3437 Valid, 8750 Invalid, 2425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2367 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-23 23:54:42,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192743 states. [2024-11-23 23:54:44,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192743 to 136107. [2024-11-23 23:54:44,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136107 states, 136106 states have (on average 1.219468649434999) internal successors, (165977), 136106 states have internal predecessors, (165977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:45,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136107 states to 136107 states and 165977 transitions. [2024-11-23 23:54:45,164 INFO L78 Accepts]: Start accepts. Automaton has 136107 states and 165977 transitions. Word has length 105 [2024-11-23 23:54:45,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:45,164 INFO L471 AbstractCegarLoop]: Abstraction has 136107 states and 165977 transitions. [2024-11-23 23:54:45,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 7.128205128205129) internal successors, (278), 39 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:45,164 INFO L276 IsEmpty]: Start isEmpty. Operand 136107 states and 165977 transitions. [2024-11-23 23:54:45,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 23:54:45,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:45,178 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:54:45,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-23 23:54:45,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:54:45,379 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:54:45,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:45,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1657592835, now seen corresponding path program 1 times [2024-11-23 23:54:45,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:45,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62676377] [2024-11-23 23:54:45,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:45,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:45,482 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:45,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:45,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62676377] [2024-11-23 23:54:45,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62676377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:45,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:45,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:54:45,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014530450] [2024-11-23 23:54:45,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:45,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:54:45,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:45,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:54:45,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:54:45,484 INFO L87 Difference]: Start difference. First operand 136107 states and 165977 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:46,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:46,113 INFO L93 Difference]: Finished difference Result 234261 states and 285042 transitions. [2024-11-23 23:54:46,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:54:46,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-23 23:54:46,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:46,242 INFO L225 Difference]: With dead ends: 234261 [2024-11-23 23:54:46,242 INFO L226 Difference]: Without dead ends: 99497 [2024-11-23 23:54:46,294 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 [2024-11-23 23:54:46,295 INFO L435 NwaCegarLoop]: 288 mSDtfsCounter, 137 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:46,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 443 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:54:46,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99497 states. [2024-11-23 23:54:47,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99497 to 99069. [2024-11-23 23:54:47,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99069 states, 99068 states have (on average 1.1929583720272945) internal successors, (118184), 99068 states have internal predecessors, (118184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:47,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99069 states to 99069 states and 118184 transitions. [2024-11-23 23:54:47,805 INFO L78 Accepts]: Start accepts. Automaton has 99069 states and 118184 transitions. Word has length 105 [2024-11-23 23:54:47,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:47,806 INFO L471 AbstractCegarLoop]: Abstraction has 99069 states and 118184 transitions. [2024-11-23 23:54:47,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:47,806 INFO L276 IsEmpty]: Start isEmpty. Operand 99069 states and 118184 transitions. [2024-11-23 23:54:47,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 23:54:47,820 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:47,820 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:54:47,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-23 23:54:47,821 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:54:47,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:47,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1975472615, now seen corresponding path program 1 times [2024-11-23 23:54:47,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:47,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23336767] [2024-11-23 23:54:47,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:47,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:47,905 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-23 23:54:47,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:47,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23336767] [2024-11-23 23:54:47,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23336767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:47,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:47,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:54:47,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112675645] [2024-11-23 23:54:47,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:47,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:54:47,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:47,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:54:47,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:54:47,907 INFO L87 Difference]: Start difference. First operand 99069 states and 118184 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:48,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:48,760 INFO L93 Difference]: Finished difference Result 128265 states and 153436 transitions. [2024-11-23 23:54:48,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:54:48,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-23 23:54:48,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:48,849 INFO L225 Difference]: With dead ends: 128265 [2024-11-23 23:54:48,849 INFO L226 Difference]: Without dead ends: 90812 [2024-11-23 23:54:48,874 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 [2024-11-23 23:54:48,874 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 207 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:48,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 373 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:54:48,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90812 states. [2024-11-23 23:54:50,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90812 to 90774. [2024-11-23 23:54:50,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90774 states, 90773 states have (on average 1.1892633272008197) internal successors, (107953), 90773 states have internal predecessors, (107953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:50,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90774 states to 90774 states and 107953 transitions. [2024-11-23 23:54:50,251 INFO L78 Accepts]: Start accepts. Automaton has 90774 states and 107953 transitions. Word has length 105 [2024-11-23 23:54:50,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:50,251 INFO L471 AbstractCegarLoop]: Abstraction has 90774 states and 107953 transitions. [2024-11-23 23:54:50,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:50,251 INFO L276 IsEmpty]: Start isEmpty. Operand 90774 states and 107953 transitions. [2024-11-23 23:54:50,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-23 23:54:50,263 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:50,263 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:54:50,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-23 23:54:50,263 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:54:50,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:50,264 INFO L85 PathProgramCache]: Analyzing trace with hash -446747820, now seen corresponding path program 1 times [2024-11-23 23:54:50,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:50,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244303847] [2024-11-23 23:54:50,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:50,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:50,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:51,986 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:51,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:51,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244303847] [2024-11-23 23:54:51,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244303847] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:54:51,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166702070] [2024-11-23 23:54:51,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:51,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:54:51,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:54:51,989 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:54:51,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 23:54:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:52,349 INFO L256 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-23 23:54:52,352 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:54:55,171 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:55,171 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:54:56,900 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:56,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166702070] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:54:56,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:54:56,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16, 14] total 40 [2024-11-23 23:54:56,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815940638] [2024-11-23 23:54:56,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:54:56,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-23 23:54:56,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:56,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-23 23:54:56,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1415, Unknown=0, NotChecked=0, Total=1560 [2024-11-23 23:54:56,902 INFO L87 Difference]: Start difference. First operand 90774 states and 107953 transitions. Second operand has 40 states, 40 states have (on average 6.5) internal successors, (260), 40 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:12,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:12,314 INFO L93 Difference]: Finished difference Result 130285 states and 154637 transitions. [2024-11-23 23:55:12,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2024-11-23 23:55:12,315 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 6.5) internal successors, (260), 40 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-23 23:55:12,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:12,429 INFO L225 Difference]: With dead ends: 130285 [2024-11-23 23:55:12,429 INFO L226 Difference]: Without dead ends: 115578 [2024-11-23 23:55:12,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 188 SyntacticMatches, 4 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7470 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=3519, Invalid=20973, Unknown=0, NotChecked=0, Total=24492 [2024-11-23 23:55:12,459 INFO L435 NwaCegarLoop]: 578 mSDtfsCounter, 3919 mSDsluCounter, 9901 mSDsCounter, 0 mSdLazyCounter, 5013 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3919 SdHoareTripleChecker+Valid, 10479 SdHoareTripleChecker+Invalid, 5091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 5013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:12,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3919 Valid, 10479 Invalid, 5091 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [78 Valid, 5013 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 23:55:12,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115578 states. [2024-11-23 23:55:13,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115578 to 100076. [2024-11-23 23:55:13,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100076 states, 100075 states have (on average 1.1886784911316512) internal successors, (118957), 100075 states have internal predecessors, (118957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:13,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100076 states to 100076 states and 118957 transitions. [2024-11-23 23:55:13,780 INFO L78 Accepts]: Start accepts. Automaton has 100076 states and 118957 transitions. Word has length 105 [2024-11-23 23:55:13,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:55:13,781 INFO L471 AbstractCegarLoop]: Abstraction has 100076 states and 118957 transitions. [2024-11-23 23:55:13,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 6.5) internal successors, (260), 40 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:13,781 INFO L276 IsEmpty]: Start isEmpty. Operand 100076 states and 118957 transitions. [2024-11-23 23:55:13,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-23 23:55:13,789 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:55:13,789 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:55:13,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-23 23:55:13,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fe90bb-c86b-4133-a54d-59089720251f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-23 23:55:13,989 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-23 23:55:13,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:55:13,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1780532348, now seen corresponding path program 1 times [2024-11-23 23:55:13,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:55:13,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427945125] [2024-11-23 23:55:13,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:55:13,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:55:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:55:14,625 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-23 23:55:14,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:55:14,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427945125] [2024-11-23 23:55:14,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427945125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:55:14,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:55:14,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 23:55:14,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595940099] [2024-11-23 23:55:14,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:55:14,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:55:14,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:55:14,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:55:14,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:55:14,627 INFO L87 Difference]: Start difference. First operand 100076 states and 118957 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:55:15,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:55:15,998 INFO L93 Difference]: Finished difference Result 130387 states and 154789 transitions. [2024-11-23 23:55:15,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:55:15,998 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-23 23:55:15,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:55:16,125 INFO L225 Difference]: With dead ends: 130387 [2024-11-23 23:55:16,125 INFO L226 Difference]: Without dead ends: 113579 [2024-11-23 23:55:16,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:55:16,155 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 1144 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:55:16,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1144 Valid, 1382 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:55:16,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113579 states.