./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b13c8169fb5357220d29959d63393b66877a012797fdaa495805bf5299de8fb1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:53:40,909 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:53:41,037 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 14:53:41,046 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:53:41,046 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:53:41,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:53:41,097 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:53:41,097 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:53:41,098 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:53:41,098 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:53:41,100 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:53:41,100 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:53:41,100 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:53:41,101 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:53:41,101 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:53:41,101 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:53:41,101 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:53:41,101 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:53:41,101 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:53:41,101 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:53:41,101 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:53:41,101 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:53:41,102 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:53:41,102 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:53:41,102 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:53:41,102 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:53:41,102 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:53:41,102 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:53:41,102 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:53:41,102 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:53:41,102 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:53:41,104 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:53:41,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:53:41,104 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:53:41,105 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:53:41,105 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:53:41,105 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:53:41,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:53:41,106 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:53:41,106 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:53:41,106 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:53:41,106 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:53:41,106 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_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b13c8169fb5357220d29959d63393b66877a012797fdaa495805bf5299de8fb1 [2024-11-13 14:53:41,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:53:41,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:53:41,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:53:41,517 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:53:41,517 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:53:41,521 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c Unable to find full path for "g++" [2024-11-13 14:53:43,904 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:53:44,451 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:53:44,454 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2024-11-13 14:53:44,473 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/data/ea233ad9c/6cdefe5552074fc385d5d28417fa25c4/FLAG73632c48f [2024-11-13 14:53:44,496 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/data/ea233ad9c/6cdefe5552074fc385d5d28417fa25c4 [2024-11-13 14:53:44,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:53:44,505 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:53:44,509 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:53:44,510 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:53:44,519 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:53:44,520 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:53:44" (1/1) ... [2024-11-13 14:53:44,522 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f6a0767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:44, skipping insertion in model container [2024-11-13 14:53:44,522 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:53:44" (1/1) ... [2024-11-13 14:53:44,622 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:53:44,988 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_5a2a65cf-39bd-4b8b-96d2-656542f16cce/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8622,8635] [2024-11-13 14:53:45,042 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_5a2a65cf-39bd-4b8b-96d2-656542f16cce/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15089,15102] [2024-11-13 14:53:45,061 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_5a2a65cf-39bd-4b8b-96d2-656542f16cce/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[17286,17299] [2024-11-13 14:53:45,071 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_5a2a65cf-39bd-4b8b-96d2-656542f16cce/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18310,18323] [2024-11-13 14:53:45,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:53:45,334 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:53:45,409 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_5a2a65cf-39bd-4b8b-96d2-656542f16cce/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8622,8635] [2024-11-13 14:53:45,452 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_5a2a65cf-39bd-4b8b-96d2-656542f16cce/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15089,15102] [2024-11-13 14:53:45,469 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_5a2a65cf-39bd-4b8b-96d2-656542f16cce/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[17286,17299] [2024-11-13 14:53:45,474 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_5a2a65cf-39bd-4b8b-96d2-656542f16cce/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18310,18323] [2024-11-13 14:53:45,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:53:45,640 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:53:45,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:45 WrapperNode [2024-11-13 14:53:45,641 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:53:45,642 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:53:45,642 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:53:45,643 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:53:45,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:45" (1/1) ... [2024-11-13 14:53:45,676 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:45" (1/1) ... [2024-11-13 14:53:45,789 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2803 [2024-11-13 14:53:45,790 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:53:45,790 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:53:45,790 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:53:45,791 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:53:45,803 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:45" (1/1) ... [2024-11-13 14:53:45,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:45" (1/1) ... [2024-11-13 14:53:45,814 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:45" (1/1) ... [2024-11-13 14:53:45,883 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 14:53:45,884 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:45" (1/1) ... [2024-11-13 14:53:45,887 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:45" (1/1) ... [2024-11-13 14:53:45,929 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:45" (1/1) ... [2024-11-13 14:53:45,943 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:45" (1/1) ... [2024-11-13 14:53:45,950 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:45" (1/1) ... [2024-11-13 14:53:45,957 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:45" (1/1) ... [2024-11-13 14:53:45,970 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:53:45,971 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:53:45,971 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:53:45,971 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:53:45,973 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:45" (1/1) ... [2024-11-13 14:53:45,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:53:46,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:53:46,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:53:46,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:53:46,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:53:46,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:53:46,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:53:46,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:53:46,440 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:53:46,442 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:53:49,000 INFO L? ?]: Removed 482 outVars from TransFormulas that were not future-live. [2024-11-13 14:53:49,000 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:53:49,026 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:53:49,027 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 14:53:49,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:53:49 BoogieIcfgContainer [2024-11-13 14:53:49,027 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:53:49,030 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:53:49,030 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:53:49,036 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:53:49,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:53:44" (1/3) ... [2024-11-13 14:53:49,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b7a5ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:53:49, skipping insertion in model container [2024-11-13 14:53:49,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:45" (2/3) ... [2024-11-13 14:53:49,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b7a5ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:53:49, skipping insertion in model container [2024-11-13 14:53:49,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:53:49" (3/3) ... [2024-11-13 14:53:49,040 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2024-11-13 14:53:49,060 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:53:49,064 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c that has 1 procedures, 442 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-13 14:53:49,184 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:53:49,203 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;@71b4f644, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:53:49,203 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-13 14:53:49,213 INFO L276 IsEmpty]: Start isEmpty. Operand has 442 states, 437 states have (on average 1.8581235697940504) internal successors, (812), 441 states have internal predecessors, (812), 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) [2024-11-13 14:53:49,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-13 14:53:49,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:49,239 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:49,240 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)] === [2024-11-13 14:53:49,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:49,246 INFO L85 PathProgramCache]: Analyzing trace with hash 881754525, now seen corresponding path program 1 times [2024-11-13 14:53:49,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:53:49,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522840644] [2024-11-13 14:53:49,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:49,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:53:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:50,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:53:50,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:53:50,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522840644] [2024-11-13 14:53:50,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522840644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:50,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:50,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:53:50,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897478443] [2024-11-13 14:53:50,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:50,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:53:50,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:53:50,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:53:50,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:53:50,075 INFO L87 Difference]: Start difference. First operand has 442 states, 437 states have (on average 1.8581235697940504) internal successors, (812), 441 states have internal predecessors, (812), 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 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 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) [2024-11-13 14:53:50,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:50,311 INFO L93 Difference]: Finished difference Result 690 states and 1215 transitions. [2024-11-13 14:53:50,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:53:50,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 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 [2024-11-13 14:53:50,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:50,344 INFO L225 Difference]: With dead ends: 690 [2024-11-13 14:53:50,344 INFO L226 Difference]: Without dead ends: 546 [2024-11-13 14:53:50,350 INFO L431 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 [2024-11-13 14:53:50,356 INFO L432 NwaCegarLoop]: 833 mSDtfsCounter, 422 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:50,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 1360 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:53:50,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2024-11-13 14:53:50,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 540. [2024-11-13 14:53:50,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 536 states have (on average 1.333955223880597) internal successors, (715), 539 states have internal predecessors, (715), 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) [2024-11-13 14:53:50,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 715 transitions. [2024-11-13 14:53:50,449 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 715 transitions. Word has length 50 [2024-11-13 14:53:50,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:50,450 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 715 transitions. [2024-11-13 14:53:50,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 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) [2024-11-13 14:53:50,451 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 715 transitions. [2024-11-13 14:53:50,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-13 14:53:50,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:50,458 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:50,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:53:50,458 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 14:53:50,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:50,463 INFO L85 PathProgramCache]: Analyzing trace with hash -88586633, now seen corresponding path program 1 times [2024-11-13 14:53:50,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:53:50,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602242722] [2024-11-13 14:53:50,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:50,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:53:50,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:50,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:53:50,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:53:50,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602242722] [2024-11-13 14:53:50,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602242722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:50,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:50,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:53:50,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613560] [2024-11-13 14:53:50,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:50,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:53:50,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:53:50,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:53:50,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:53:50,743 INFO L87 Difference]: Start difference. First operand 540 states and 715 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 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) [2024-11-13 14:53:50,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:50,853 INFO L93 Difference]: Finished difference Result 955 states and 1317 transitions. [2024-11-13 14:53:50,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:53:50,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 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 [2024-11-13 14:53:50,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:50,860 INFO L225 Difference]: With dead ends: 955 [2024-11-13 14:53:50,861 INFO L226 Difference]: Without dead ends: 714 [2024-11-13 14:53:50,863 INFO L431 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 [2024-11-13 14:53:50,864 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 236 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1018 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 [2024-11-13 14:53:50,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 1018 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:53:50,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2024-11-13 14:53:50,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 708. [2024-11-13 14:53:50,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 704 states have (on average 1.3536931818181819) internal successors, (953), 707 states have internal predecessors, (953), 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) [2024-11-13 14:53:50,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 953 transitions. [2024-11-13 14:53:50,914 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 953 transitions. Word has length 50 [2024-11-13 14:53:50,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:50,915 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 953 transitions. [2024-11-13 14:53:50,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 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) [2024-11-13 14:53:50,915 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 953 transitions. [2024-11-13 14:53:50,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-13 14:53:50,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:50,917 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:50,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:53:50,918 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 14:53:50,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:50,919 INFO L85 PathProgramCache]: Analyzing trace with hash 301591798, now seen corresponding path program 1 times [2024-11-13 14:53:50,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:53:50,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341314820] [2024-11-13 14:53:50,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:50,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:53:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:51,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:53:51,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:53:51,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341314820] [2024-11-13 14:53:51,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341314820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:51,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:51,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:53:51,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760228645] [2024-11-13 14:53:51,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:51,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:53:51,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:53:51,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:53:51,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:53:51,210 INFO L87 Difference]: Start difference. First operand 708 states and 953 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 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) [2024-11-13 14:53:51,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:51,342 INFO L93 Difference]: Finished difference Result 1364 states and 1888 transitions. [2024-11-13 14:53:51,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:53:51,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 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 [2024-11-13 14:53:51,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:51,348 INFO L225 Difference]: With dead ends: 1364 [2024-11-13 14:53:51,348 INFO L226 Difference]: Without dead ends: 1035 [2024-11-13 14:53:51,350 INFO L431 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 [2024-11-13 14:53:51,351 INFO L432 NwaCegarLoop]: 618 mSDtfsCounter, 297 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:51,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 994 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:53:51,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2024-11-13 14:53:51,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 1028. [2024-11-13 14:53:51,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 1024 states have (on average 1.3642578125) internal successors, (1397), 1027 states have internal predecessors, (1397), 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) [2024-11-13 14:53:51,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1397 transitions. [2024-11-13 14:53:51,402 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1397 transitions. Word has length 50 [2024-11-13 14:53:51,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:51,405 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1397 transitions. [2024-11-13 14:53:51,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 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) [2024-11-13 14:53:51,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1397 transitions. [2024-11-13 14:53:51,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-13 14:53:51,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:51,410 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:51,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:53:51,411 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)] === [2024-11-13 14:53:51,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:51,415 INFO L85 PathProgramCache]: Analyzing trace with hash 157307916, now seen corresponding path program 1 times [2024-11-13 14:53:51,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:53:51,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071633263] [2024-11-13 14:53:51,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:51,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:53:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:51,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:53:51,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:53:51,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071633263] [2024-11-13 14:53:51,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071633263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:51,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:51,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:53:51,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794557434] [2024-11-13 14:53:51,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:51,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:53:51,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:53:51,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:53:51,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:53:51,705 INFO L87 Difference]: Start difference. First operand 1028 states and 1397 transitions. 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) [2024-11-13 14:53:52,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:52,293 INFO L93 Difference]: Finished difference Result 2117 states and 2920 transitions. [2024-11-13 14:53:52,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:53:52,294 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 [2024-11-13 14:53:52,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:52,300 INFO L225 Difference]: With dead ends: 2117 [2024-11-13 14:53:52,300 INFO L226 Difference]: Without dead ends: 1255 [2024-11-13 14:53:52,302 INFO L431 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 [2024-11-13 14:53:52,303 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 1690 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:52,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1690 Valid, 399 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:53:52,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2024-11-13 14:53:52,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1245. [2024-11-13 14:53:52,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 1241 states have (on average 1.3738920225624496) internal successors, (1705), 1244 states have internal predecessors, (1705), 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) [2024-11-13 14:53:52,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1705 transitions. [2024-11-13 14:53:52,390 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1705 transitions. Word has length 50 [2024-11-13 14:53:52,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:52,391 INFO L471 AbstractCegarLoop]: Abstraction has 1245 states and 1705 transitions. [2024-11-13 14:53:52,391 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) [2024-11-13 14:53:52,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1705 transitions. [2024-11-13 14:53:52,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 14:53:52,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:52,394 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:52,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:53:52,395 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 14:53:52,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:52,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1701829494, now seen corresponding path program 1 times [2024-11-13 14:53:52,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:53:52,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404128014] [2024-11-13 14:53:52,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:52,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:53:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:52,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:53:52,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:53:52,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404128014] [2024-11-13 14:53:52,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404128014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:52,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:52,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:53:52,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347246472] [2024-11-13 14:53:52,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:52,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:53:52,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:53:52,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:53:52,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:53:52,688 INFO L87 Difference]: Start difference. First operand 1245 states and 1705 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) [2024-11-13 14:53:53,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:53,186 INFO L93 Difference]: Finished difference Result 2643 states and 3662 transitions. [2024-11-13 14:53:53,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:53:53,187 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 [2024-11-13 14:53:53,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:53,197 INFO L225 Difference]: With dead ends: 2643 [2024-11-13 14:53:53,197 INFO L226 Difference]: Without dead ends: 1579 [2024-11-13 14:53:53,201 INFO L431 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 [2024-11-13 14:53:53,204 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 1442 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:53,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 342 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:53:53,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2024-11-13 14:53:53,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1177. [2024-11-13 14:53:53,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 1173 states have (on average 1.3725490196078431) internal successors, (1610), 1176 states have internal predecessors, (1610), 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) [2024-11-13 14:53:53,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1610 transitions. [2024-11-13 14:53:53,256 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1610 transitions. Word has length 51 [2024-11-13 14:53:53,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:53,257 INFO L471 AbstractCegarLoop]: Abstraction has 1177 states and 1610 transitions. [2024-11-13 14:53:53,257 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) [2024-11-13 14:53:53,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1610 transitions. [2024-11-13 14:53:53,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 14:53:53,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:53,261 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:53,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:53:53,261 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 14:53:53,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:53,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1906241974, now seen corresponding path program 1 times [2024-11-13 14:53:53,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:53:53,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070115789] [2024-11-13 14:53:53,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:53,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:53:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:53,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:53:53,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:53:53,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070115789] [2024-11-13 14:53:53,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070115789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:53,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:53,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:53:53,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331354886] [2024-11-13 14:53:53,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:53,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:53:53,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:53:53,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:53:53,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:53:53,525 INFO L87 Difference]: Start difference. First operand 1177 states and 1610 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) [2024-11-13 14:53:53,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:53,995 INFO L93 Difference]: Finished difference Result 2592 states and 3567 transitions. [2024-11-13 14:53:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:53:53,996 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 [2024-11-13 14:53:53,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:54,005 INFO L225 Difference]: With dead ends: 2592 [2024-11-13 14:53:54,006 INFO L226 Difference]: Without dead ends: 1534 [2024-11-13 14:53:54,008 INFO L431 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 [2024-11-13 14:53:54,012 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1280 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:54,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 316 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:53:54,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2024-11-13 14:53:54,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1521. [2024-11-13 14:53:54,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1517 states have (on average 1.3645352669742914) internal successors, (2070), 1520 states have internal predecessors, (2070), 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) [2024-11-13 14:53:54,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 2070 transitions. [2024-11-13 14:53:54,074 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 2070 transitions. Word has length 51 [2024-11-13 14:53:54,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:54,074 INFO L471 AbstractCegarLoop]: Abstraction has 1521 states and 2070 transitions. [2024-11-13 14:53:54,074 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) [2024-11-13 14:53:54,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 2070 transitions. [2024-11-13 14:53:54,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-13 14:53:54,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:54,077 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:54,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:53:54,079 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 14:53:54,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:54,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1198562519, now seen corresponding path program 1 times [2024-11-13 14:53:54,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:53:54,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859931850] [2024-11-13 14:53:54,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:54,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:53:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:54,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:53:54,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:53:54,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859931850] [2024-11-13 14:53:54,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859931850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:54,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:54,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:53:54,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022099364] [2024-11-13 14:53:54,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:54,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:53:54,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:53:54,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:53:54,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:53:54,427 INFO L87 Difference]: Start difference. First operand 1521 states and 2070 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 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) [2024-11-13 14:53:55,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:55,017 INFO L93 Difference]: Finished difference Result 3020 states and 4171 transitions. [2024-11-13 14:53:55,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:53:55,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 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 [2024-11-13 14:53:55,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:55,027 INFO L225 Difference]: With dead ends: 3020 [2024-11-13 14:53:55,027 INFO L226 Difference]: Without dead ends: 2587 [2024-11-13 14:53:55,028 INFO L431 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 [2024-11-13 14:53:55,029 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 1846 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1846 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:55,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1846 Valid, 611 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:53:55,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states. [2024-11-13 14:53:55,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 1533. [2024-11-13 14:53:55,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1533 states, 1529 states have (on average 1.3642903858731197) internal successors, (2086), 1532 states have internal predecessors, (2086), 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) [2024-11-13 14:53:55,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 2086 transitions. [2024-11-13 14:53:55,082 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 2086 transitions. Word has length 52 [2024-11-13 14:53:55,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:55,082 INFO L471 AbstractCegarLoop]: Abstraction has 1533 states and 2086 transitions. [2024-11-13 14:53:55,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 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) [2024-11-13 14:53:55,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 2086 transitions. [2024-11-13 14:53:55,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-13 14:53:55,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:55,084 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:55,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:53:55,084 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 14:53:55,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:55,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1743373944, now seen corresponding path program 1 times [2024-11-13 14:53:55,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:53:55,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740493013] [2024-11-13 14:53:55,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:55,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:53:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:55,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:53:55,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:53:55,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740493013] [2024-11-13 14:53:55,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740493013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:55,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:55,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:53:55,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558851024] [2024-11-13 14:53:55,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:55,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:53:55,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:53:55,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:53:55,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:53:55,390 INFO L87 Difference]: Start difference. First operand 1533 states and 2086 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) [2024-11-13 14:53:56,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:56,037 INFO L93 Difference]: Finished difference Result 3012 states and 4152 transitions. [2024-11-13 14:53:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:53:56,038 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 [2024-11-13 14:53:56,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:56,049 INFO L225 Difference]: With dead ends: 3012 [2024-11-13 14:53:56,049 INFO L226 Difference]: Without dead ends: 2291 [2024-11-13 14:53:56,051 INFO L431 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 [2024-11-13 14:53:56,052 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 1593 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:56,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1593 Valid, 571 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:53:56,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2024-11-13 14:53:56,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 1547. [2024-11-13 14:53:56,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1543 states have (on average 1.3635774465327284) internal successors, (2104), 1546 states have internal predecessors, (2104), 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) [2024-11-13 14:53:56,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2104 transitions. [2024-11-13 14:53:56,130 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2104 transitions. Word has length 53 [2024-11-13 14:53:56,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:56,131 INFO L471 AbstractCegarLoop]: Abstraction has 1547 states and 2104 transitions. [2024-11-13 14:53:56,131 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) [2024-11-13 14:53:56,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2104 transitions. [2024-11-13 14:53:56,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-13 14:53:56,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:56,134 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:56,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:53:56,134 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 14:53:56,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:56,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1359815673, now seen corresponding path program 1 times [2024-11-13 14:53:56,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:53:56,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455378935] [2024-11-13 14:53:56,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:56,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:53:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:56,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:53:56,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:53:56,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455378935] [2024-11-13 14:53:56,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455378935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:56,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:56,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:53:56,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764762266] [2024-11-13 14:53:56,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:56,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:53:56,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:53:56,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:53:56,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:53:56,412 INFO L87 Difference]: Start difference. First operand 1547 states and 2104 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) [2024-11-13 14:53:57,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:57,152 INFO L93 Difference]: Finished difference Result 3306 states and 4587 transitions. [2024-11-13 14:53:57,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:53:57,153 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 [2024-11-13 14:53:57,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:57,163 INFO L225 Difference]: With dead ends: 3306 [2024-11-13 14:53:57,163 INFO L226 Difference]: Without dead ends: 2756 [2024-11-13 14:53:57,165 INFO L431 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 [2024-11-13 14:53:57,166 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 1718 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:57,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1718 Valid, 592 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:53:57,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2024-11-13 14:53:57,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 1569. [2024-11-13 14:53:57,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1565 states have (on average 1.3642172523961662) internal successors, (2135), 1568 states have internal predecessors, (2135), 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) [2024-11-13 14:53:57,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2135 transitions. [2024-11-13 14:53:57,243 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2135 transitions. Word has length 53 [2024-11-13 14:53:57,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:57,243 INFO L471 AbstractCegarLoop]: Abstraction has 1569 states and 2135 transitions. [2024-11-13 14:53:57,243 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) [2024-11-13 14:53:57,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2135 transitions. [2024-11-13 14:53:57,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-13 14:53:57,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:57,246 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:57,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 14:53:57,246 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)] === [2024-11-13 14:53:57,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:57,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1681497036, now seen corresponding path program 1 times [2024-11-13 14:53:57,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:53:57,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088708288] [2024-11-13 14:53:57,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:57,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:53:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:57,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:53:57,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:53:57,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088708288] [2024-11-13 14:53:57,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088708288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:57,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:57,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:53:57,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314976949] [2024-11-13 14:53:57,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:57,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:53:57,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:53:57,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:53:57,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:53:57,744 INFO L87 Difference]: Start difference. First operand 1569 states and 2135 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) [2024-11-13 14:53:58,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:58,531 INFO L93 Difference]: Finished difference Result 3264 states and 4520 transitions. [2024-11-13 14:53:58,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:53:58,532 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 [2024-11-13 14:53:58,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:58,540 INFO L225 Difference]: With dead ends: 3264 [2024-11-13 14:53:58,541 INFO L226 Difference]: Without dead ends: 2214 [2024-11-13 14:53:58,543 INFO L431 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 [2024-11-13 14:53:58,544 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1831 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1831 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:58,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1831 Valid, 724 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:53:58,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2024-11-13 14:53:58,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 1569. [2024-11-13 14:53:58,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1565 states have (on average 1.3610223642172523) internal successors, (2130), 1568 states have internal predecessors, (2130), 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) [2024-11-13 14:53:58,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2130 transitions. [2024-11-13 14:53:58,598 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2130 transitions. Word has length 54 [2024-11-13 14:53:58,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:58,599 INFO L471 AbstractCegarLoop]: Abstraction has 1569 states and 2130 transitions. [2024-11-13 14:53:58,599 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) [2024-11-13 14:53:58,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2130 transitions. [2024-11-13 14:53:58,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-13 14:53:58,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:58,601 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:53:58,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 14:53:58,602 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)] === [2024-11-13 14:53:58,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:58,602 INFO L85 PathProgramCache]: Analyzing trace with hash 711155878, now seen corresponding path program 1 times [2024-11-13 14:53:58,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:53:58,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866714214] [2024-11-13 14:53:58,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:58,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:53:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:59,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:53:59,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:53:59,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866714214] [2024-11-13 14:53:59,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866714214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:59,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:59,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 14:53:59,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849856780] [2024-11-13 14:53:59,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:59,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:53:59,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:53:59,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:53:59,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:53:59,153 INFO L87 Difference]: Start difference. First operand 1569 states and 2130 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) [2024-11-13 14:54:00,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:00,182 INFO L93 Difference]: Finished difference Result 3631 states and 5036 transitions. [2024-11-13 14:54:00,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:54:00,182 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 [2024-11-13 14:54:00,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:00,192 INFO L225 Difference]: With dead ends: 3631 [2024-11-13 14:54:00,193 INFO L226 Difference]: Without dead ends: 2709 [2024-11-13 14:54:00,195 INFO L431 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 [2024-11-13 14:54:00,196 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 1659 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:00,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1659 Valid, 1224 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 14:54:00,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2024-11-13 14:54:00,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 1540. [2024-11-13 14:54:00,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1540 states, 1536 states have (on average 1.3600260416666667) internal successors, (2089), 1539 states have internal predecessors, (2089), 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) [2024-11-13 14:54:00,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 2089 transitions. [2024-11-13 14:54:00,251 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 2089 transitions. Word has length 54 [2024-11-13 14:54:00,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:00,252 INFO L471 AbstractCegarLoop]: Abstraction has 1540 states and 2089 transitions. [2024-11-13 14:54:00,252 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) [2024-11-13 14:54:00,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 2089 transitions. [2024-11-13 14:54:00,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-13 14:54:00,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:00,254 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:00,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 14:54:00,254 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)] === [2024-11-13 14:54:00,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:00,255 INFO L85 PathProgramCache]: Analyzing trace with hash -839465653, now seen corresponding path program 1 times [2024-11-13 14:54:00,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:00,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416511184] [2024-11-13 14:54:00,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:00,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:00,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:00,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:00,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416511184] [2024-11-13 14:54:00,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416511184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:00,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:00,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 14:54:00,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819141728] [2024-11-13 14:54:00,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:00,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:54:00,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:00,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:54:00,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:54:00,679 INFO L87 Difference]: Start difference. First operand 1540 states and 2089 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) [2024-11-13 14:54:01,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:01,579 INFO L93 Difference]: Finished difference Result 2262 states and 3082 transitions. [2024-11-13 14:54:01,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:54:01,579 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 [2024-11-13 14:54:01,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:01,588 INFO L225 Difference]: With dead ends: 2262 [2024-11-13 14:54:01,588 INFO L226 Difference]: Without dead ends: 2257 [2024-11-13 14:54:01,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:54:01,590 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 1388 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:01,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 1014 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:54:01,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2024-11-13 14:54:01,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 1540. [2024-11-13 14:54:01,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1540 states, 1536 states have (on average 1.3587239583333333) internal successors, (2087), 1539 states have internal predecessors, (2087), 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) [2024-11-13 14:54:01,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 2087 transitions. [2024-11-13 14:54:01,644 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 2087 transitions. Word has length 54 [2024-11-13 14:54:01,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:01,645 INFO L471 AbstractCegarLoop]: Abstraction has 1540 states and 2087 transitions. [2024-11-13 14:54:01,645 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) [2024-11-13 14:54:01,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 2087 transitions. [2024-11-13 14:54:01,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-13 14:54:01,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:01,661 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:01,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 14:54:01,661 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 14:54:01,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:01,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1126690749, now seen corresponding path program 1 times [2024-11-13 14:54:01,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:01,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120841651] [2024-11-13 14:54:01,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:01,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:01,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:01,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:01,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120841651] [2024-11-13 14:54:01,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120841651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:01,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:01,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:54:01,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858717667] [2024-11-13 14:54:01,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:01,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:54:01,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:01,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:54:01,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:54:01,774 INFO L87 Difference]: Start difference. First operand 1540 states and 2087 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) [2024-11-13 14:54:01,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:01,820 INFO L93 Difference]: Finished difference Result 2068 states and 2797 transitions. [2024-11-13 14:54:01,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:54:01,821 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 [2024-11-13 14:54:01,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:01,826 INFO L225 Difference]: With dead ends: 2068 [2024-11-13 14:54:01,827 INFO L226 Difference]: Without dead ends: 1509 [2024-11-13 14:54:01,828 INFO L431 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 [2024-11-13 14:54:01,829 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 257 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 673 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 [2024-11-13 14:54:01,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 673 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:54:01,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2024-11-13 14:54:01,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1507. [2024-11-13 14:54:01,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1503 states have (on average 1.3293413173652695) internal successors, (1998), 1506 states have internal predecessors, (1998), 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) [2024-11-13 14:54:01,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 1998 transitions. [2024-11-13 14:54:01,873 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 1998 transitions. Word has length 55 [2024-11-13 14:54:01,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:01,873 INFO L471 AbstractCegarLoop]: Abstraction has 1507 states and 1998 transitions. [2024-11-13 14:54:01,873 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) [2024-11-13 14:54:01,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 1998 transitions. [2024-11-13 14:54:01,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-13 14:54:01,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:01,876 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:01,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 14:54:01,876 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 14:54:01,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:01,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1317678866, now seen corresponding path program 1 times [2024-11-13 14:54:01,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:01,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231023820] [2024-11-13 14:54:01,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:01,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:01,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:01,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:01,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231023820] [2024-11-13 14:54:01,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231023820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:01,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:01,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:54:01,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145770104] [2024-11-13 14:54:01,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:01,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:54:01,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:01,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:54:01,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:54:01,976 INFO L87 Difference]: Start difference. First operand 1507 states and 1998 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) [2024-11-13 14:54:02,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:02,043 INFO L93 Difference]: Finished difference Result 2127 states and 2843 transitions. [2024-11-13 14:54:02,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:54:02,044 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 [2024-11-13 14:54:02,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:02,049 INFO L225 Difference]: With dead ends: 2127 [2024-11-13 14:54:02,050 INFO L226 Difference]: Without dead ends: 1514 [2024-11-13 14:54:02,051 INFO L431 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 [2024-11-13 14:54:02,052 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 206 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 744 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 [2024-11-13 14:54:02,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 744 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:54:02,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2024-11-13 14:54:02,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1507. [2024-11-13 14:54:02,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1503 states have (on average 1.3140385894876914) internal successors, (1975), 1506 states have internal predecessors, (1975), 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) [2024-11-13 14:54:02,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 1975 transitions. [2024-11-13 14:54:02,090 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 1975 transitions. Word has length 55 [2024-11-13 14:54:02,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:02,090 INFO L471 AbstractCegarLoop]: Abstraction has 1507 states and 1975 transitions. [2024-11-13 14:54:02,090 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) [2024-11-13 14:54:02,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 1975 transitions. [2024-11-13 14:54:02,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-13 14:54:02,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:02,093 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:02,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 14:54:02,093 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 14:54:02,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:02,094 INFO L85 PathProgramCache]: Analyzing trace with hash -944081870, now seen corresponding path program 1 times [2024-11-13 14:54:02,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:02,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606581883] [2024-11-13 14:54:02,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:02,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:02,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:02,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:02,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606581883] [2024-11-13 14:54:02,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606581883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:02,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:02,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:54:02,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19271562] [2024-11-13 14:54:02,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:02,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:54:02,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:02,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:54:02,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:54:02,200 INFO L87 Difference]: Start difference. First operand 1507 states and 1975 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) [2024-11-13 14:54:02,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:02,246 INFO L93 Difference]: Finished difference Result 2164 states and 2861 transitions. [2024-11-13 14:54:02,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:54:02,246 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 [2024-11-13 14:54:02,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:02,256 INFO L225 Difference]: With dead ends: 2164 [2024-11-13 14:54:02,256 INFO L226 Difference]: Without dead ends: 1513 [2024-11-13 14:54:02,257 INFO L431 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 [2024-11-13 14:54:02,262 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 222 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 745 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 [2024-11-13 14:54:02,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 745 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:54:02,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-13 14:54:02,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1507. [2024-11-13 14:54:02,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1503 states have (on average 1.3020625415834997) internal successors, (1957), 1506 states have internal predecessors, (1957), 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) [2024-11-13 14:54:02,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 1957 transitions. [2024-11-13 14:54:02,328 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 1957 transitions. Word has length 55 [2024-11-13 14:54:02,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:02,328 INFO L471 AbstractCegarLoop]: Abstraction has 1507 states and 1957 transitions. [2024-11-13 14:54:02,328 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) [2024-11-13 14:54:02,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 1957 transitions. [2024-11-13 14:54:02,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-13 14:54:02,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:02,331 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:02,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 14:54:02,331 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 14:54:02,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:02,334 INFO L85 PathProgramCache]: Analyzing trace with hash -599519829, now seen corresponding path program 1 times [2024-11-13 14:54:02,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:02,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131448918] [2024-11-13 14:54:02,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:02,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:02,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:02,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:02,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131448918] [2024-11-13 14:54:02,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131448918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:02,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:02,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:54:02,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378459473] [2024-11-13 14:54:02,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:02,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:54:02,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:02,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:54:02,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:54:02,427 INFO L87 Difference]: Start difference. First operand 1507 states and 1957 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) [2024-11-13 14:54:02,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:02,555 INFO L93 Difference]: Finished difference Result 2638 states and 3459 transitions. [2024-11-13 14:54:02,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:54:02,556 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 [2024-11-13 14:54:02,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:02,569 INFO L225 Difference]: With dead ends: 2638 [2024-11-13 14:54:02,569 INFO L226 Difference]: Without dead ends: 1786 [2024-11-13 14:54:02,571 INFO L431 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 [2024-11-13 14:54:02,571 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 280 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 420 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 [2024-11-13 14:54:02,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 420 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:54:02,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2024-11-13 14:54:02,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1397. [2024-11-13 14:54:02,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1397 states, 1393 states have (on average 1.3058147882268485) internal successors, (1819), 1396 states have internal predecessors, (1819), 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) [2024-11-13 14:54:02,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 1819 transitions. [2024-11-13 14:54:02,604 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 1819 transitions. Word has length 57 [2024-11-13 14:54:02,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:02,605 INFO L471 AbstractCegarLoop]: Abstraction has 1397 states and 1819 transitions. [2024-11-13 14:54:02,605 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) [2024-11-13 14:54:02,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 1819 transitions. [2024-11-13 14:54:02,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-13 14:54:02,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:02,607 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:02,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 14:54:02,607 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 14:54:02,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:02,609 INFO L85 PathProgramCache]: Analyzing trace with hash -953719962, now seen corresponding path program 1 times [2024-11-13 14:54:02,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:02,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922793598] [2024-11-13 14:54:02,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:02,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:04,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:04,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:04,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922793598] [2024-11-13 14:54:04,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922793598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:04,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:04,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-13 14:54:04,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456549627] [2024-11-13 14:54:04,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:04,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 14:54:04,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:04,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 14:54:04,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:54:04,572 INFO L87 Difference]: Start difference. First operand 1397 states and 1819 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) [2024-11-13 14:54:07,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:07,863 INFO L93 Difference]: Finished difference Result 2904 states and 3841 transitions. [2024-11-13 14:54:07,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 14:54:07,864 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 [2024-11-13 14:54:07,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:07,880 INFO L225 Difference]: With dead ends: 2904 [2024-11-13 14:54:07,883 INFO L226 Difference]: Without dead ends: 2900 [2024-11-13 14:54:07,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=237, Invalid=1023, Unknown=0, NotChecked=0, Total=1260 [2024-11-13 14:54:07,886 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 3249 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3249 SdHoareTripleChecker+Valid, 3062 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:07,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3249 Valid, 3062 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1686 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 14:54:07,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2900 states. [2024-11-13 14:54:07,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2900 to 1409. [2024-11-13 14:54:07,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1409 states, 1405 states have (on average 1.306761565836299) internal successors, (1836), 1408 states have internal predecessors, (1836), 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) [2024-11-13 14:54:07,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 1836 transitions. [2024-11-13 14:54:07,925 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 1836 transitions. Word has length 57 [2024-11-13 14:54:07,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:07,925 INFO L471 AbstractCegarLoop]: Abstraction has 1409 states and 1836 transitions. [2024-11-13 14:54:07,925 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) [2024-11-13 14:54:07,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 1836 transitions. [2024-11-13 14:54:07,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-13 14:54:07,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:07,928 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:07,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 14:54:07,928 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 14:54:07,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:07,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1381909423, now seen corresponding path program 1 times [2024-11-13 14:54:07,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:07,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434919041] [2024-11-13 14:54:07,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:07,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:08,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:08,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:08,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434919041] [2024-11-13 14:54:08,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434919041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:08,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:08,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 14:54:08,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657635428] [2024-11-13 14:54:08,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:08,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:54:08,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:08,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:54:08,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:54:08,755 INFO L87 Difference]: Start difference. First operand 1409 states and 1836 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) [2024-11-13 14:54:09,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:09,766 INFO L93 Difference]: Finished difference Result 3448 states and 4586 transitions. [2024-11-13 14:54:09,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:54:09,767 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 [2024-11-13 14:54:09,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:09,776 INFO L225 Difference]: With dead ends: 3448 [2024-11-13 14:54:09,776 INFO L226 Difference]: Without dead ends: 3222 [2024-11-13 14:54:09,778 INFO L431 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 [2024-11-13 14:54:09,779 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 2135 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2135 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:09,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2135 Valid, 1127 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:54:09,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3222 states. [2024-11-13 14:54:09,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3222 to 1346. [2024-11-13 14:54:09,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1344 states have (on average 1.3095238095238095) internal successors, (1760), 1345 states have internal predecessors, (1760), 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) [2024-11-13 14:54:09,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1760 transitions. [2024-11-13 14:54:09,848 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1760 transitions. Word has length 57 [2024-11-13 14:54:09,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:09,849 INFO L471 AbstractCegarLoop]: Abstraction has 1346 states and 1760 transitions. [2024-11-13 14:54:09,849 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) [2024-11-13 14:54:09,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1760 transitions. [2024-11-13 14:54:09,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 14:54:09,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:09,851 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:09,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 14:54:09,852 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 14:54:09,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:09,852 INFO L85 PathProgramCache]: Analyzing trace with hash 433372011, now seen corresponding path program 1 times [2024-11-13 14:54:09,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:09,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765773165] [2024-11-13 14:54:09,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:09,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:09,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:10,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:10,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:10,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765773165] [2024-11-13 14:54:10,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765773165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:10,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:10,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 14:54:10,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46741467] [2024-11-13 14:54:10,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:10,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 14:54:10,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:10,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 14:54:10,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-13 14:54:10,960 INFO L87 Difference]: Start difference. First operand 1346 states and 1760 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 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) [2024-11-13 14:54:11,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:11,871 INFO L93 Difference]: Finished difference Result 2235 states and 2957 transitions. [2024-11-13 14:54:11,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:54:11,871 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 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 [2024-11-13 14:54:11,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:11,877 INFO L225 Difference]: With dead ends: 2235 [2024-11-13 14:54:11,877 INFO L226 Difference]: Without dead ends: 2157 [2024-11-13 14:54:11,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2024-11-13 14:54:11,879 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 519 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:11,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 1740 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:54:11,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2157 states. [2024-11-13 14:54:11,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2157 to 1337. [2024-11-13 14:54:11,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1336 states have (on average 1.3083832335329342) internal successors, (1748), 1336 states have internal predecessors, (1748), 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) [2024-11-13 14:54:11,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1748 transitions. [2024-11-13 14:54:11,910 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1748 transitions. Word has length 58 [2024-11-13 14:54:11,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:11,910 INFO L471 AbstractCegarLoop]: Abstraction has 1337 states and 1748 transitions. [2024-11-13 14:54:11,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 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) [2024-11-13 14:54:11,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1748 transitions. [2024-11-13 14:54:11,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 14:54:11,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:11,913 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:11,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 14:54:11,914 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 14:54:11,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:11,914 INFO L85 PathProgramCache]: Analyzing trace with hash -2109512119, now seen corresponding path program 1 times [2024-11-13 14:54:11,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:11,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784273491] [2024-11-13 14:54:11,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:11,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:12,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:12,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:12,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784273491] [2024-11-13 14:54:12,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784273491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:12,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:12,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:54:12,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550785835] [2024-11-13 14:54:12,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:12,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:54:12,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:12,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:54:12,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:54:12,085 INFO L87 Difference]: Start difference. First operand 1337 states and 1748 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) [2024-11-13 14:54:12,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:12,214 INFO L93 Difference]: Finished difference Result 3113 states and 4208 transitions. [2024-11-13 14:54:12,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:54:12,215 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 [2024-11-13 14:54:12,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:12,223 INFO L225 Difference]: With dead ends: 3113 [2024-11-13 14:54:12,223 INFO L226 Difference]: Without dead ends: 2379 [2024-11-13 14:54:12,225 INFO L431 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 [2024-11-13 14:54:12,228 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 978 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 628 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 [2024-11-13 14:54:12,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 628 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:54:12,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2379 states. [2024-11-13 14:54:12,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2379 to 2035. [2024-11-13 14:54:12,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2035 states, 2034 states have (on average 1.3156342182890854) internal successors, (2676), 2034 states have internal predecessors, (2676), 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) [2024-11-13 14:54:12,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2035 states to 2035 states and 2676 transitions. [2024-11-13 14:54:12,294 INFO L78 Accepts]: Start accepts. Automaton has 2035 states and 2676 transitions. Word has length 66 [2024-11-13 14:54:12,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:12,295 INFO L471 AbstractCegarLoop]: Abstraction has 2035 states and 2676 transitions. [2024-11-13 14:54:12,296 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) [2024-11-13 14:54:12,296 INFO L276 IsEmpty]: Start isEmpty. Operand 2035 states and 2676 transitions. [2024-11-13 14:54:12,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 14:54:12,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:12,301 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:12,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 14:54:12,301 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)] === [2024-11-13 14:54:12,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:12,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1089617976, now seen corresponding path program 1 times [2024-11-13 14:54:12,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:12,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869260430] [2024-11-13 14:54:12,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:12,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:12,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:12,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:12,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869260430] [2024-11-13 14:54:12,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869260430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:12,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:12,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:54:12,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473541936] [2024-11-13 14:54:12,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:12,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:54:12,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:12,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:54:12,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:54:12,524 INFO L87 Difference]: Start difference. First operand 2035 states and 2676 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) [2024-11-13 14:54:12,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:12,656 INFO L93 Difference]: Finished difference Result 2041 states and 2679 transitions. [2024-11-13 14:54:12,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:54:12,657 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 [2024-11-13 14:54:12,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:12,662 INFO L225 Difference]: With dead ends: 2041 [2024-11-13 14:54:12,662 INFO L226 Difference]: Without dead ends: 1818 [2024-11-13 14:54:12,663 INFO L431 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 [2024-11-13 14:54:12,664 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 580 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:12,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 716 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:54:12,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2024-11-13 14:54:12,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1814. [2024-11-13 14:54:12,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1814 states, 1813 states have (on average 1.319911748483177) internal successors, (2393), 1813 states have internal predecessors, (2393), 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) [2024-11-13 14:54:12,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1814 states to 1814 states and 2393 transitions. [2024-11-13 14:54:12,696 INFO L78 Accepts]: Start accepts. Automaton has 1814 states and 2393 transitions. Word has length 67 [2024-11-13 14:54:12,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:12,697 INFO L471 AbstractCegarLoop]: Abstraction has 1814 states and 2393 transitions. [2024-11-13 14:54:12,697 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) [2024-11-13 14:54:12,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1814 states and 2393 transitions. [2024-11-13 14:54:12,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 14:54:12,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:12,701 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:12,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 14:54:12,701 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)] === [2024-11-13 14:54:12,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:12,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1950278783, now seen corresponding path program 1 times [2024-11-13 14:54:12,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:12,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817066358] [2024-11-13 14:54:12,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:12,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:12,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:12,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:12,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817066358] [2024-11-13 14:54:12,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817066358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:12,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:12,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:54:12,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963071336] [2024-11-13 14:54:12,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:12,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:54:12,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:12,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:54:12,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:54:12,867 INFO L87 Difference]: Start difference. First operand 1814 states and 2393 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) [2024-11-13 14:54:12,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:12,917 INFO L93 Difference]: Finished difference Result 4072 states and 5469 transitions. [2024-11-13 14:54:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:54:12,918 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 [2024-11-13 14:54:12,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:12,925 INFO L225 Difference]: With dead ends: 4072 [2024-11-13 14:54:12,926 INFO L226 Difference]: Without dead ends: 2770 [2024-11-13 14:54:12,928 INFO L431 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 [2024-11-13 14:54:12,930 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 118 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 534 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 [2024-11-13 14:54:12,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 534 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:54:12,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2024-11-13 14:54:12,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2640. [2024-11-13 14:54:12,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2640 states, 2639 states have (on average 1.3183023872679045) internal successors, (3479), 2639 states have internal predecessors, (3479), 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) [2024-11-13 14:54:12,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2640 states to 2640 states and 3479 transitions. [2024-11-13 14:54:12,974 INFO L78 Accepts]: Start accepts. Automaton has 2640 states and 3479 transitions. Word has length 68 [2024-11-13 14:54:12,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:12,975 INFO L471 AbstractCegarLoop]: Abstraction has 2640 states and 3479 transitions. [2024-11-13 14:54:12,975 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) [2024-11-13 14:54:12,975 INFO L276 IsEmpty]: Start isEmpty. Operand 2640 states and 3479 transitions. [2024-11-13 14:54:12,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 14:54:12,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:12,979 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:12,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 14:54:12,979 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)] === [2024-11-13 14:54:12,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:12,979 INFO L85 PathProgramCache]: Analyzing trace with hash 427404410, now seen corresponding path program 1 times [2024-11-13 14:54:12,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:12,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044736098] [2024-11-13 14:54:12,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:12,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:13,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:13,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:13,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044736098] [2024-11-13 14:54:13,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044736098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:13,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:13,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:54:13,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000033389] [2024-11-13 14:54:13,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:13,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:54:13,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:13,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:54:13,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:54:13,170 INFO L87 Difference]: Start difference. First operand 2640 states and 3479 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) [2024-11-13 14:54:13,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:13,235 INFO L93 Difference]: Finished difference Result 6652 states and 8933 transitions. [2024-11-13 14:54:13,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:54:13,236 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 [2024-11-13 14:54:13,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:13,248 INFO L225 Difference]: With dead ends: 6652 [2024-11-13 14:54:13,249 INFO L226 Difference]: Without dead ends: 4546 [2024-11-13 14:54:13,252 INFO L431 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 [2024-11-13 14:54:13,254 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 107 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 521 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 [2024-11-13 14:54:13,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 521 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:54:13,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4546 states. [2024-11-13 14:54:13,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 4176. [2024-11-13 14:54:13,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4176 states, 4175 states have (on average 1.3233532934131738) internal successors, (5525), 4175 states have internal predecessors, (5525), 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) [2024-11-13 14:54:13,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4176 states to 4176 states and 5525 transitions. [2024-11-13 14:54:13,329 INFO L78 Accepts]: Start accepts. Automaton has 4176 states and 5525 transitions. Word has length 68 [2024-11-13 14:54:13,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:13,329 INFO L471 AbstractCegarLoop]: Abstraction has 4176 states and 5525 transitions. [2024-11-13 14:54:13,330 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) [2024-11-13 14:54:13,330 INFO L276 IsEmpty]: Start isEmpty. Operand 4176 states and 5525 transitions. [2024-11-13 14:54:13,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-13 14:54:13,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:13,333 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:13,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-13 14:54:13,333 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)] === [2024-11-13 14:54:13,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:13,334 INFO L85 PathProgramCache]: Analyzing trace with hash -2114357008, now seen corresponding path program 1 times [2024-11-13 14:54:13,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:13,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735454780] [2024-11-13 14:54:13,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:13,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:13,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:13,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:13,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735454780] [2024-11-13 14:54:13,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735454780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:13,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:13,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:54:13,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548068426] [2024-11-13 14:54:13,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:13,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:54:13,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:13,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:54:13,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:54:13,492 INFO L87 Difference]: Start difference. First operand 4176 states and 5525 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) [2024-11-13 14:54:13,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:13,590 INFO L93 Difference]: Finished difference Result 11060 states and 14767 transitions. [2024-11-13 14:54:13,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:54:13,591 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 [2024-11-13 14:54:13,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:13,611 INFO L225 Difference]: With dead ends: 11060 [2024-11-13 14:54:13,611 INFO L226 Difference]: Without dead ends: 7418 [2024-11-13 14:54:13,617 INFO L431 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 [2024-11-13 14:54:13,618 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 85 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 511 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 [2024-11-13 14:54:13,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 511 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:54:13,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7418 states. [2024-11-13 14:54:13,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7418 to 6808. [2024-11-13 14:54:13,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6808 states, 6807 states have (on average 1.3187894814161891) internal successors, (8977), 6807 states have internal predecessors, (8977), 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) [2024-11-13 14:54:13,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6808 states to 6808 states and 8977 transitions. [2024-11-13 14:54:13,741 INFO L78 Accepts]: Start accepts. Automaton has 6808 states and 8977 transitions. Word has length 70 [2024-11-13 14:54:13,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:13,742 INFO L471 AbstractCegarLoop]: Abstraction has 6808 states and 8977 transitions. [2024-11-13 14:54:13,742 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) [2024-11-13 14:54:13,742 INFO L276 IsEmpty]: Start isEmpty. Operand 6808 states and 8977 transitions. [2024-11-13 14:54:13,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-13 14:54:13,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:13,745 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:13,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-13 14:54:13,745 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)] === [2024-11-13 14:54:13,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:13,746 INFO L85 PathProgramCache]: Analyzing trace with hash 2105959165, now seen corresponding path program 1 times [2024-11-13 14:54:13,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:13,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953757327] [2024-11-13 14:54:13,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:13,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:14,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:14,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:14,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953757327] [2024-11-13 14:54:14,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953757327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:14,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:14,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:54:14,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147022307] [2024-11-13 14:54:14,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:14,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:54:14,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:14,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:54:14,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:54:14,144 INFO L87 Difference]: Start difference. First operand 6808 states and 8977 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) [2024-11-13 14:54:14,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:14,237 INFO L93 Difference]: Finished difference Result 7482 states and 9874 transitions. [2024-11-13 14:54:14,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:54:14,238 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 [2024-11-13 14:54:14,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:14,257 INFO L225 Difference]: With dead ends: 7482 [2024-11-13 14:54:14,258 INFO L226 Difference]: Without dead ends: 7480 [2024-11-13 14:54:14,261 INFO L431 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 [2024-11-13 14:54:14,261 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 0 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:14,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1263 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:54:14,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7480 states. [2024-11-13 14:54:14,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7480 to 7480. [2024-11-13 14:54:14,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7480 states, 7479 states have (on average 1.2901457414092794) internal successors, (9649), 7479 states have internal predecessors, (9649), 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) [2024-11-13 14:54:14,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7480 states to 7480 states and 9649 transitions. [2024-11-13 14:54:14,380 INFO L78 Accepts]: Start accepts. Automaton has 7480 states and 9649 transitions. Word has length 72 [2024-11-13 14:54:14,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:14,382 INFO L471 AbstractCegarLoop]: Abstraction has 7480 states and 9649 transitions. [2024-11-13 14:54:14,383 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) [2024-11-13 14:54:14,383 INFO L276 IsEmpty]: Start isEmpty. Operand 7480 states and 9649 transitions. [2024-11-13 14:54:14,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-13 14:54:14,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:14,386 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:14,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-13 14:54:14,386 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)] === [2024-11-13 14:54:14,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:14,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1422452613, now seen corresponding path program 1 times [2024-11-13 14:54:14,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:14,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414018456] [2024-11-13 14:54:14,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:14,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:14,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:14,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:14,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414018456] [2024-11-13 14:54:14,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414018456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:14,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:14,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:54:14,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030878178] [2024-11-13 14:54:14,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:14,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:54:14,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:14,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:54:14,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:54:14,532 INFO L87 Difference]: Start difference. First operand 7480 states and 9649 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) [2024-11-13 14:54:14,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:14,624 INFO L93 Difference]: Finished difference Result 17860 states and 23035 transitions. [2024-11-13 14:54:14,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:54:14,625 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 [2024-11-13 14:54:14,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:14,653 INFO L225 Difference]: With dead ends: 17860 [2024-11-13 14:54:14,653 INFO L226 Difference]: Without dead ends: 10914 [2024-11-13 14:54:14,661 INFO L431 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 [2024-11-13 14:54:14,662 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 177 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:14,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 379 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:54:14,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10914 states. [2024-11-13 14:54:14,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10914 to 10912. [2024-11-13 14:54:14,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10912 states, 10911 states have (on average 1.271469159563743) internal successors, (13873), 10911 states have internal predecessors, (13873), 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) [2024-11-13 14:54:14,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10912 states to 10912 states and 13873 transitions. [2024-11-13 14:54:14,838 INFO L78 Accepts]: Start accepts. Automaton has 10912 states and 13873 transitions. Word has length 73 [2024-11-13 14:54:14,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:14,838 INFO L471 AbstractCegarLoop]: Abstraction has 10912 states and 13873 transitions. [2024-11-13 14:54:14,838 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) [2024-11-13 14:54:14,839 INFO L276 IsEmpty]: Start isEmpty. Operand 10912 states and 13873 transitions. [2024-11-13 14:54:14,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-13 14:54:14,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:14,842 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:14,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-13 14:54:14,842 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)] === [2024-11-13 14:54:14,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:14,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1415466240, now seen corresponding path program 1 times [2024-11-13 14:54:14,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:14,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7068086] [2024-11-13 14:54:14,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:14,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:14,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:15,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:15,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:15,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7068086] [2024-11-13 14:54:15,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7068086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:15,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:15,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:54:15,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938522418] [2024-11-13 14:54:15,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:15,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:54:15,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:15,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:54:15,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:54:15,020 INFO L87 Difference]: Start difference. First operand 10912 states and 13873 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) [2024-11-13 14:54:15,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:15,191 INFO L93 Difference]: Finished difference Result 16062 states and 20560 transitions. [2024-11-13 14:54:15,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:54:15,192 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 [2024-11-13 14:54:15,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:15,231 INFO L225 Difference]: With dead ends: 16062 [2024-11-13 14:54:15,231 INFO L226 Difference]: Without dead ends: 13696 [2024-11-13 14:54:15,237 INFO L431 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 [2024-11-13 14:54:15,239 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 599 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:15,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 771 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:54:15,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13696 states. [2024-11-13 14:54:15,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13696 to 12472. [2024-11-13 14:54:15,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12472 states, 12471 states have (on average 1.269184508058696) internal successors, (15828), 12471 states have internal predecessors, (15828), 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) [2024-11-13 14:54:15,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12472 states to 12472 states and 15828 transitions. [2024-11-13 14:54:15,563 INFO L78 Accepts]: Start accepts. Automaton has 12472 states and 15828 transitions. Word has length 74 [2024-11-13 14:54:15,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:15,564 INFO L471 AbstractCegarLoop]: Abstraction has 12472 states and 15828 transitions. [2024-11-13 14:54:15,564 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) [2024-11-13 14:54:15,564 INFO L276 IsEmpty]: Start isEmpty. Operand 12472 states and 15828 transitions. [2024-11-13 14:54:15,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-13 14:54:15,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:15,568 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:54:15,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-13 14:54:15,569 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)] === [2024-11-13 14:54:15,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:15,569 INFO L85 PathProgramCache]: Analyzing trace with hash -96521411, now seen corresponding path program 1 times [2024-11-13 14:54:15,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:15,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692790048] [2024-11-13 14:54:15,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:15,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:15,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:15,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:15,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692790048] [2024-11-13 14:54:15,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692790048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:15,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:15,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:54:15,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264182029] [2024-11-13 14:54:15,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:15,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:54:15,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:15,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:54:15,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:54:15,794 INFO L87 Difference]: Start difference. First operand 12472 states and 15828 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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) [2024-11-13 14:54:15,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:15,976 INFO L93 Difference]: Finished difference Result 16742 states and 21360 transitions. [2024-11-13 14:54:15,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:54:15,977 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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 78 [2024-11-13 14:54:15,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:16,015 INFO L225 Difference]: With dead ends: 16742 [2024-11-13 14:54:16,015 INFO L226 Difference]: Without dead ends: 14424 [2024-11-13 14:54:16,022 INFO L431 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 [2024-11-13 14:54:16,023 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 602 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:16,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 749 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:54:16,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14424 states. [2024-11-13 14:54:16,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14424 to 13998. [2024-11-13 14:54:16,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13998 states, 13997 states have (on average 1.2671286704293778) internal successors, (17736), 13997 states have internal predecessors, (17736), 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) [2024-11-13 14:54:16,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13998 states to 13998 states and 17736 transitions. [2024-11-13 14:54:16,226 INFO L78 Accepts]: Start accepts. Automaton has 13998 states and 17736 transitions. Word has length 78 [2024-11-13 14:54:16,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:16,226 INFO L471 AbstractCegarLoop]: Abstraction has 13998 states and 17736 transitions. [2024-11-13 14:54:16,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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) [2024-11-13 14:54:16,226 INFO L276 IsEmpty]: Start isEmpty. Operand 13998 states and 17736 transitions. [2024-11-13 14:54:16,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-13 14:54:16,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:16,234 INFO L215 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] [2024-11-13 14:54:16,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-13 14:54:16,235 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)] === [2024-11-13 14:54:16,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:16,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1725210313, now seen corresponding path program 1 times [2024-11-13 14:54:16,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:16,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135664946] [2024-11-13 14:54:16,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:16,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:16,686 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 14:54:16,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:16,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135664946] [2024-11-13 14:54:16,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135664946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:16,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:16,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 14:54:16,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296099689] [2024-11-13 14:54:16,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:16,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:54:16,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:16,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:54:16,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:54:16,689 INFO L87 Difference]: Start difference. First operand 13998 states and 17736 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) [2024-11-13 14:54:17,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:17,683 INFO L93 Difference]: Finished difference Result 38186 states and 48317 transitions. [2024-11-13 14:54:17,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 14:54:17,684 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 [2024-11-13 14:54:17,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:17,774 INFO L225 Difference]: With dead ends: 38186 [2024-11-13 14:54:17,775 INFO L226 Difference]: Without dead ends: 31418 [2024-11-13 14:54:17,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:54:17,796 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 1035 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:17,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1035 Valid, 917 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:54:17,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31418 states. [2024-11-13 14:54:18,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31418 to 13974. [2024-11-13 14:54:18,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13974 states, 13973 states have (on average 1.2672296571960209) internal successors, (17707), 13973 states have internal predecessors, (17707), 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) [2024-11-13 14:54:18,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13974 states to 13974 states and 17707 transitions. [2024-11-13 14:54:18,226 INFO L78 Accepts]: Start accepts. Automaton has 13974 states and 17707 transitions. Word has length 92 [2024-11-13 14:54:18,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:18,227 INFO L471 AbstractCegarLoop]: Abstraction has 13974 states and 17707 transitions. [2024-11-13 14:54:18,227 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) [2024-11-13 14:54:18,227 INFO L276 IsEmpty]: Start isEmpty. Operand 13974 states and 17707 transitions. [2024-11-13 14:54:18,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-13 14:54:18,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:18,234 INFO L215 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, 1] [2024-11-13 14:54:18,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-13 14:54:18,235 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)] === [2024-11-13 14:54:18,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:18,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1339395570, now seen corresponding path program 1 times [2024-11-13 14:54:18,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:18,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180182636] [2024-11-13 14:54:18,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:18,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:18,700 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:18,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:18,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180182636] [2024-11-13 14:54:18,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180182636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:18,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:18,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 14:54:18,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276490775] [2024-11-13 14:54:18,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:18,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 14:54:18,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:18,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 14:54:18,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-13 14:54:18,702 INFO L87 Difference]: Start difference. First operand 13974 states and 17707 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 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) [2024-11-13 14:54:19,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:19,847 INFO L93 Difference]: Finished difference Result 31881 states and 40265 transitions. [2024-11-13 14:54:19,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 14:54:19,847 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 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 93 [2024-11-13 14:54:19,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:19,912 INFO L225 Difference]: With dead ends: 31881 [2024-11-13 14:54:19,912 INFO L226 Difference]: Without dead ends: 25041 [2024-11-13 14:54:19,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2024-11-13 14:54:19,926 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 1090 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:19,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 941 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 14:54:19,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25041 states. [2024-11-13 14:54:20,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25041 to 21793. [2024-11-13 14:54:20,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21793 states, 21792 states have (on average 1.2663362701908958) internal successors, (27596), 21792 states have internal predecessors, (27596), 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) [2024-11-13 14:54:20,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21793 states to 21793 states and 27596 transitions. [2024-11-13 14:54:20,255 INFO L78 Accepts]: Start accepts. Automaton has 21793 states and 27596 transitions. Word has length 93 [2024-11-13 14:54:20,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:20,255 INFO L471 AbstractCegarLoop]: Abstraction has 21793 states and 27596 transitions. [2024-11-13 14:54:20,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 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) [2024-11-13 14:54:20,256 INFO L276 IsEmpty]: Start isEmpty. Operand 21793 states and 27596 transitions. [2024-11-13 14:54:20,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-13 14:54:20,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:20,264 INFO L215 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, 1] [2024-11-13 14:54:20,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-13 14:54:20,265 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)] === [2024-11-13 14:54:20,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:20,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1289899464, now seen corresponding path program 1 times [2024-11-13 14:54:20,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:20,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260456319] [2024-11-13 14:54:20,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:20,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:20,934 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:20,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:20,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260456319] [2024-11-13 14:54:20,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260456319] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:54:20,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636288162] [2024-11-13 14:54:20,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:20,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:54:20,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:54:20,940 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:54:20,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:54:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:21,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-13 14:54:21,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:23,558 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:23,558 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:54:25,806 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:25,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636288162] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:54:25,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:54:25,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 28 [2024-11-13 14:54:25,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211853320] [2024-11-13 14:54:25,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:54:25,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-13 14:54:25,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:25,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-13 14:54:25,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=691, Unknown=0, NotChecked=0, Total=812 [2024-11-13 14:54:25,811 INFO L87 Difference]: Start difference. First operand 21793 states and 27596 transitions. Second operand has 29 states, 29 states have (on average 8.310344827586206) internal successors, (241), 28 states have internal predecessors, (241), 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) [2024-11-13 14:54:49,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:49,273 INFO L93 Difference]: Finished difference Result 134020 states and 167909 transitions. [2024-11-13 14:54:49,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 231 states. [2024-11-13 14:54:49,274 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 8.310344827586206) internal successors, (241), 28 states have internal predecessors, (241), 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 93 [2024-11-13 14:54:49,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:49,618 INFO L225 Difference]: With dead ends: 134020 [2024-11-13 14:54:49,618 INFO L226 Difference]: Without dead ends: 123820 [2024-11-13 14:54:49,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28015 ImplicationChecksByTransitivity, 17.4s TimeCoverageRelationStatistics Valid=10500, Invalid=55806, Unknown=0, NotChecked=0, Total=66306 [2024-11-13 14:54:49,666 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 4668 mSDsluCounter, 5344 mSDsCounter, 0 mSdLazyCounter, 5456 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4668 SdHoareTripleChecker+Valid, 5733 SdHoareTripleChecker+Invalid, 5575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 5456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:49,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4668 Valid, 5733 Invalid, 5575 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [119 Valid, 5456 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-13 14:54:49,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123820 states. [2024-11-13 14:54:50,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123820 to 41224. [2024-11-13 14:54:50,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41224 states, 41223 states have (on average 1.2659437692550275) internal successors, (52186), 41223 states have internal predecessors, (52186), 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) [2024-11-13 14:54:50,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41224 states to 41224 states and 52186 transitions. [2024-11-13 14:54:50,898 INFO L78 Accepts]: Start accepts. Automaton has 41224 states and 52186 transitions. Word has length 93 [2024-11-13 14:54:50,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:50,898 INFO L471 AbstractCegarLoop]: Abstraction has 41224 states and 52186 transitions. [2024-11-13 14:54:50,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 8.310344827586206) internal successors, (241), 28 states have internal predecessors, (241), 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) [2024-11-13 14:54:50,898 INFO L276 IsEmpty]: Start isEmpty. Operand 41224 states and 52186 transitions. [2024-11-13 14:54:50,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-13 14:54:50,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:50,909 INFO L215 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, 1, 1] [2024-11-13 14:54:50,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:54:51,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-13 14:54:51,110 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)] === [2024-11-13 14:54:51,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:51,110 INFO L85 PathProgramCache]: Analyzing trace with hash 848038152, now seen corresponding path program 1 times [2024-11-13 14:54:51,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:51,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842538966] [2024-11-13 14:54:51,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:51,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:51,666 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:51,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:51,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842538966] [2024-11-13 14:54:51,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842538966] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:54:51,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497119356] [2024-11-13 14:54:51,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:51,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:54:51,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:54:51,670 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:54:51,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:54:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:52,076 INFO L255 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-13 14:54:52,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:52,721 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:52,721 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:54:53,657 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:53,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497119356] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:54:53,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:54:53,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 8] total 18 [2024-11-13 14:54:53,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478323517] [2024-11-13 14:54:53,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:54:53,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 14:54:53,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:53,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 14:54:53,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:54:53,662 INFO L87 Difference]: Start difference. First operand 41224 states and 52186 transitions. Second operand has 18 states, 18 states have (on average 14.11111111111111) internal successors, (254), 18 states have internal predecessors, (254), 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) [2024-11-13 14:54:55,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:55,719 INFO L93 Difference]: Finished difference Result 171069 states and 217226 transitions. [2024-11-13 14:54:55,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-13 14:54:55,719 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 14.11111111111111) internal successors, (254), 18 states have internal predecessors, (254), 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 [2024-11-13 14:54:55,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:55,901 INFO L225 Difference]: With dead ends: 171069 [2024-11-13 14:54:55,902 INFO L226 Difference]: Without dead ends: 130527 [2024-11-13 14:54:55,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 174 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 777 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=515, Invalid=1837, Unknown=0, NotChecked=0, Total=2352 [2024-11-13 14:54:55,959 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 3642 mSDsluCounter, 2806 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3642 SdHoareTripleChecker+Valid, 3226 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:55,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3642 Valid, 3226 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:54:56,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130527 states. [2024-11-13 14:54:57,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130527 to 111482. [2024-11-13 14:54:57,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111482 states, 111481 states have (on average 1.2567702119643707) internal successors, (140106), 111481 states have internal predecessors, (140106), 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) [2024-11-13 14:54:57,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111482 states to 111482 states and 140106 transitions. [2024-11-13 14:54:57,806 INFO L78 Accepts]: Start accepts. Automaton has 111482 states and 140106 transitions. Word has length 94 [2024-11-13 14:54:57,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:57,806 INFO L471 AbstractCegarLoop]: Abstraction has 111482 states and 140106 transitions. [2024-11-13 14:54:57,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 14.11111111111111) internal successors, (254), 18 states have internal predecessors, (254), 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) [2024-11-13 14:54:57,806 INFO L276 IsEmpty]: Start isEmpty. Operand 111482 states and 140106 transitions. [2024-11-13 14:54:57,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-13 14:54:57,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:57,812 INFO L215 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] [2024-11-13 14:54:57,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 14:54:58,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-13 14:54:58,013 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)] === [2024-11-13 14:54:58,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:58,014 INFO L85 PathProgramCache]: Analyzing trace with hash 900007329, now seen corresponding path program 1 times [2024-11-13 14:54:58,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:58,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906130275] [2024-11-13 14:54:58,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:58,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:58,161 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:54:58,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:58,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906130275] [2024-11-13 14:54:58,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906130275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:58,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:58,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:54:58,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128018899] [2024-11-13 14:54:58,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:58,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:54:58,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:58,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:54:58,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:54:58,163 INFO L87 Difference]: Start difference. First operand 111482 states and 140106 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 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) [2024-11-13 14:54:59,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:59,926 INFO L93 Difference]: Finished difference Result 222003 states and 278789 transitions. [2024-11-13 14:54:59,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:54:59,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 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 95 [2024-11-13 14:54:59,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:00,134 INFO L225 Difference]: With dead ends: 222003 [2024-11-13 14:55:00,134 INFO L226 Difference]: Without dead ends: 111203 [2024-11-13 14:55:00,192 INFO L431 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 [2024-11-13 14:55:00,193 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 441 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:00,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 487 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:55:00,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111203 states. [2024-11-13 14:55:01,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111203 to 103834. [2024-11-13 14:55:01,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103834 states, 103833 states have (on average 1.2375160112873556) internal successors, (128495), 103833 states have internal predecessors, (128495), 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) [2024-11-13 14:55:02,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103834 states to 103834 states and 128495 transitions. [2024-11-13 14:55:02,158 INFO L78 Accepts]: Start accepts. Automaton has 103834 states and 128495 transitions. Word has length 95 [2024-11-13 14:55:02,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:02,159 INFO L471 AbstractCegarLoop]: Abstraction has 103834 states and 128495 transitions. [2024-11-13 14:55:02,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 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) [2024-11-13 14:55:02,159 INFO L276 IsEmpty]: Start isEmpty. Operand 103834 states and 128495 transitions. [2024-11-13 14:55:02,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-13 14:55:02,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:02,171 INFO L215 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] [2024-11-13 14:55:02,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-13 14:55:02,172 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)] === [2024-11-13 14:55:02,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:02,172 INFO L85 PathProgramCache]: Analyzing trace with hash -702249606, now seen corresponding path program 1 times [2024-11-13 14:55:02,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:02,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645712818] [2024-11-13 14:55:02,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:02,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:02,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:02,325 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:55:02,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:02,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645712818] [2024-11-13 14:55:02,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645712818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:02,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:55:02,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:55:02,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810944802] [2024-11-13 14:55:02,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:02,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:55:02,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:02,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:55:02,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:55:02,328 INFO L87 Difference]: Start difference. First operand 103834 states and 128495 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 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) [2024-11-13 14:55:03,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:03,184 INFO L93 Difference]: Finished difference Result 140787 states and 175446 transitions. [2024-11-13 14:55:03,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:55:03,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 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 99 [2024-11-13 14:55:03,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:03,368 INFO L225 Difference]: With dead ends: 140787 [2024-11-13 14:55:03,368 INFO L226 Difference]: Without dead ends: 122967 [2024-11-13 14:55:03,405 INFO L431 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 [2024-11-13 14:55:03,405 INFO L432 NwaCegarLoop]: 328 mSDtfsCounter, 538 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:03,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 796 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:55:03,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122967 states. [2024-11-13 14:55:05,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122967 to 118093. [2024-11-13 14:55:05,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118093 states, 118092 states have (on average 1.2359939708024252) internal successors, (145961), 118092 states have internal predecessors, (145961), 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) [2024-11-13 14:55:05,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118093 states to 118093 states and 145961 transitions. [2024-11-13 14:55:05,417 INFO L78 Accepts]: Start accepts. Automaton has 118093 states and 145961 transitions. Word has length 99 [2024-11-13 14:55:05,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:05,417 INFO L471 AbstractCegarLoop]: Abstraction has 118093 states and 145961 transitions. [2024-11-13 14:55:05,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 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) [2024-11-13 14:55:05,417 INFO L276 IsEmpty]: Start isEmpty. Operand 118093 states and 145961 transitions. [2024-11-13 14:55:05,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-13 14:55:05,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:05,426 INFO L215 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] [2024-11-13 14:55:05,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-13 14:55:05,427 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)] === [2024-11-13 14:55:05,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:05,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1212187745, now seen corresponding path program 1 times [2024-11-13 14:55:05,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:05,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277794894] [2024-11-13 14:55:05,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:05,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:05,498 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-13 14:55:05,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:05,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277794894] [2024-11-13 14:55:05,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277794894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:05,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:55:05,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:55:05,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209932181] [2024-11-13 14:55:05,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:05,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:55:05,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:05,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:55:05,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:55:05,499 INFO L87 Difference]: Start difference. First operand 118093 states and 145961 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2024-11-13 14:55:06,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:06,507 INFO L93 Difference]: Finished difference Result 221017 states and 273472 transitions. [2024-11-13 14:55:06,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:55:06,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 100 [2024-11-13 14:55:06,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:06,643 INFO L225 Difference]: With dead ends: 221017 [2024-11-13 14:55:06,643 INFO L226 Difference]: Without dead ends: 103606 [2024-11-13 14:55:06,695 INFO L431 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 [2024-11-13 14:55:06,695 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 188 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:06,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 239 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:55:06,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103606 states. [2024-11-13 14:55:08,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103606 to 101236. [2024-11-13 14:55:08,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101236 states, 101235 states have (on average 1.2179088259989135) internal successors, (123295), 101235 states have internal predecessors, (123295), 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) [2024-11-13 14:55:08,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101236 states to 101236 states and 123295 transitions. [2024-11-13 14:55:08,569 INFO L78 Accepts]: Start accepts. Automaton has 101236 states and 123295 transitions. Word has length 100 [2024-11-13 14:55:08,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:08,569 INFO L471 AbstractCegarLoop]: Abstraction has 101236 states and 123295 transitions. [2024-11-13 14:55:08,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2024-11-13 14:55:08,569 INFO L276 IsEmpty]: Start isEmpty. Operand 101236 states and 123295 transitions. [2024-11-13 14:55:08,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-13 14:55:08,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:08,581 INFO L215 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] [2024-11-13 14:55:08,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-13 14:55:08,581 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)] === [2024-11-13 14:55:08,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:08,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1791537517, now seen corresponding path program 1 times [2024-11-13 14:55:08,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:08,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304473102] [2024-11-13 14:55:08,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:08,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:08,760 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:55:08,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:08,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304473102] [2024-11-13 14:55:08,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304473102] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:55:08,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079238083] [2024-11-13 14:55:08,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:08,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:08,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:55:08,764 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:55:08,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 14:55:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:09,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:55:09,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:09,708 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:55:09,708 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:55:09,953 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:55:09,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079238083] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:55:09,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:55:09,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-13 14:55:09,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495059075] [2024-11-13 14:55:09,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:55:09,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:55:09,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:09,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:55:09,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:55:09,960 INFO L87 Difference]: Start difference. First operand 101236 states and 123295 transitions. Second operand has 14 states, 14 states have (on average 19.214285714285715) internal successors, (269), 14 states have internal predecessors, (269), 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) [2024-11-13 14:55:11,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:11,519 INFO L93 Difference]: Finished difference Result 178258 states and 217019 transitions. [2024-11-13 14:55:11,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:55:11,519 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 19.214285714285715) internal successors, (269), 14 states have internal predecessors, (269), 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 101 [2024-11-13 14:55:11,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:11,600 INFO L225 Difference]: With dead ends: 178258 [2024-11-13 14:55:11,601 INFO L226 Difference]: Without dead ends: 77616 [2024-11-13 14:55:11,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:55:11,624 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1716 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1716 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:11,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1716 Valid, 923 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:55:11,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77616 states. [2024-11-13 14:55:12,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77616 to 77260. [2024-11-13 14:55:12,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77260 states, 77259 states have (on average 1.1891430124645672) internal successors, (91872), 77259 states have internal predecessors, (91872), 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) [2024-11-13 14:55:12,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77260 states to 77260 states and 91872 transitions. [2024-11-13 14:55:12,944 INFO L78 Accepts]: Start accepts. Automaton has 77260 states and 91872 transitions. Word has length 101 [2024-11-13 14:55:12,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:12,944 INFO L471 AbstractCegarLoop]: Abstraction has 77260 states and 91872 transitions. [2024-11-13 14:55:12,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 19.214285714285715) internal successors, (269), 14 states have internal predecessors, (269), 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) [2024-11-13 14:55:12,944 INFO L276 IsEmpty]: Start isEmpty. Operand 77260 states and 91872 transitions. [2024-11-13 14:55:12,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 14:55:12,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:12,951 INFO L215 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] [2024-11-13 14:55:12,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 14:55:13,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-13 14:55:13,151 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)] === [2024-11-13 14:55:13,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:13,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1517969609, now seen corresponding path program 1 times [2024-11-13 14:55:13,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:13,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495944262] [2024-11-13 14:55:13,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:13,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:13,333 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-13 14:55:13,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:13,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495944262] [2024-11-13 14:55:13,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495944262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:13,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:55:13,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:55:13,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531037741] [2024-11-13 14:55:13,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:13,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:55:13,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:13,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:55:13,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:55:13,337 INFO L87 Difference]: Start difference. First operand 77260 states and 91872 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 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) [2024-11-13 14:55:14,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:14,057 INFO L93 Difference]: Finished difference Result 117795 states and 139308 transitions. [2024-11-13 14:55:14,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:55:14,057 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 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 [2024-11-13 14:55:14,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:14,163 INFO L225 Difference]: With dead ends: 117795 [2024-11-13 14:55:14,164 INFO L226 Difference]: Without dead ends: 100685 [2024-11-13 14:55:14,190 INFO L431 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 [2024-11-13 14:55:14,191 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1156 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:14,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 455 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:55:14,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100685 states. [2024-11-13 14:55:15,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100685 to 77305. [2024-11-13 14:55:15,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77305 states, 77304 states have (on average 1.189123460622995) internal successors, (91924), 77304 states have internal predecessors, (91924), 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) [2024-11-13 14:55:15,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77305 states to 77305 states and 91924 transitions. [2024-11-13 14:55:15,493 INFO L78 Accepts]: Start accepts. Automaton has 77305 states and 91924 transitions. Word has length 103 [2024-11-13 14:55:15,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:15,494 INFO L471 AbstractCegarLoop]: Abstraction has 77305 states and 91924 transitions. [2024-11-13 14:55:15,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 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) [2024-11-13 14:55:15,494 INFO L276 IsEmpty]: Start isEmpty. Operand 77305 states and 91924 transitions. [2024-11-13 14:55:15,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 14:55:15,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:15,504 INFO L215 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] [2024-11-13 14:55:15,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-13 14:55:15,504 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)] === [2024-11-13 14:55:15,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:15,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1546415277, now seen corresponding path program 1 times [2024-11-13 14:55:15,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:15,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311425075] [2024-11-13 14:55:15,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:15,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:15,622 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:55:15,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:15,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311425075] [2024-11-13 14:55:15,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311425075] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:55:15,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868003893] [2024-11-13 14:55:15,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:15,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:15,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:55:15,627 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:55:15,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 14:55:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:16,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:55:16,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:16,474 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:55:16,474 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:55:16,721 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:55:16,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868003893] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:55:16,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:55:16,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-13 14:55:16,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798953082] [2024-11-13 14:55:16,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:55:16,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:55:16,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:16,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:55:16,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:55:16,723 INFO L87 Difference]: Start difference. First operand 77305 states and 91924 transitions. Second operand has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 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) [2024-11-13 14:55:18,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:18,182 INFO L93 Difference]: Finished difference Result 178080 states and 211480 transitions. [2024-11-13 14:55:18,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:55:18,183 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 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 [2024-11-13 14:55:18,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:18,327 INFO L225 Difference]: With dead ends: 178080 [2024-11-13 14:55:18,327 INFO L226 Difference]: Without dead ends: 101482 [2024-11-13 14:55:18,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 200 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:55:18,380 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1456 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:18,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 1030 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:55:18,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101482 states. [2024-11-13 14:55:19,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101482 to 86562. [2024-11-13 14:55:19,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86562 states, 86561 states have (on average 1.1878675153937686) internal successors, (102823), 86561 states have internal predecessors, (102823), 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) [2024-11-13 14:55:19,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86562 states to 86562 states and 102823 transitions. [2024-11-13 14:55:19,989 INFO L78 Accepts]: Start accepts. Automaton has 86562 states and 102823 transitions. Word has length 104 [2024-11-13 14:55:19,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:19,989 INFO L471 AbstractCegarLoop]: Abstraction has 86562 states and 102823 transitions. [2024-11-13 14:55:19,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 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) [2024-11-13 14:55:19,989 INFO L276 IsEmpty]: Start isEmpty. Operand 86562 states and 102823 transitions. [2024-11-13 14:55:19,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 14:55:19,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:19,997 INFO L215 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, 1, 1] [2024-11-13 14:55:20,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 14:55:20,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-13 14:55:20,198 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)] === [2024-11-13 14:55:20,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:20,199 INFO L85 PathProgramCache]: Analyzing trace with hash -364310100, now seen corresponding path program 1 times [2024-11-13 14:55:20,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:20,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742454597] [2024-11-13 14:55:20,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:20,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:20,270 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:55:20,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:20,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742454597] [2024-11-13 14:55:20,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742454597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:20,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:55:20,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:55:20,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621727303] [2024-11-13 14:55:20,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:20,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:55:20,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:20,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:55:20,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:55:20,272 INFO L87 Difference]: Start difference. First operand 86562 states and 102823 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) [2024-11-13 14:55:20,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:20,590 INFO L93 Difference]: Finished difference Result 120325 states and 142715 transitions. [2024-11-13 14:55:20,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:55:20,590 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 [2024-11-13 14:55:20,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:20,685 INFO L225 Difference]: With dead ends: 120325 [2024-11-13 14:55:20,685 INFO L226 Difference]: Without dead ends: 88256 [2024-11-13 14:55:20,714 INFO L431 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 [2024-11-13 14:55:20,715 INFO L432 NwaCegarLoop]: 331 mSDtfsCounter, 72 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:20,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 538 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:55:20,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88256 states. [2024-11-13 14:55:21,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88256 to 84006. [2024-11-13 14:55:22,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84006 states, 84005 states have (on average 1.1845485387774537) internal successors, (99508), 84005 states have internal predecessors, (99508), 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) [2024-11-13 14:55:22,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84006 states to 84006 states and 99508 transitions. [2024-11-13 14:55:22,133 INFO L78 Accepts]: Start accepts. Automaton has 84006 states and 99508 transitions. Word has length 105 [2024-11-13 14:55:22,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:22,133 INFO L471 AbstractCegarLoop]: Abstraction has 84006 states and 99508 transitions. [2024-11-13 14:55:22,133 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) [2024-11-13 14:55:22,134 INFO L276 IsEmpty]: Start isEmpty. Operand 84006 states and 99508 transitions. [2024-11-13 14:55:22,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 14:55:22,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:22,146 INFO L215 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] [2024-11-13 14:55:22,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-13 14:55:22,147 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)] === [2024-11-13 14:55:22,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:22,147 INFO L85 PathProgramCache]: Analyzing trace with hash 158442809, now seen corresponding path program 1 times [2024-11-13 14:55:22,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:22,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058083560] [2024-11-13 14:55:22,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:22,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:23,174 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:55:23,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:23,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058083560] [2024-11-13 14:55:23,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058083560] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:55:23,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810875143] [2024-11-13 14:55:23,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:23,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:23,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:55:23,178 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:55:23,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 14:55:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:23,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 14:55:23,512 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:24,924 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:55:24,924 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:55:26,354 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:55:26,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810875143] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:55:26,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:55:26,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 13] total 29 [2024-11-13 14:55:26,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125097347] [2024-11-13 14:55:26,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:55:26,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-13 14:55:26,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:26,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-13 14:55:26,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=728, Unknown=0, NotChecked=0, Total=870 [2024-11-13 14:55:26,356 INFO L87 Difference]: Start difference. First operand 84006 states and 99508 transitions. Second operand has 30 states, 30 states have (on average 8.566666666666666) internal successors, (257), 29 states have internal predecessors, (257), 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) [2024-11-13 14:55:30,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:30,579 INFO L93 Difference]: Finished difference Result 309673 states and 367736 transitions. [2024-11-13 14:55:30,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-13 14:55:30,580 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.566666666666666) internal successors, (257), 29 states have internal predecessors, (257), 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 [2024-11-13 14:55:30,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:30,933 INFO L225 Difference]: With dead ends: 309673 [2024-11-13 14:55:30,933 INFO L226 Difference]: Without dead ends: 241233 [2024-11-13 14:55:31,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 734 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=746, Invalid=2560, Unknown=0, NotChecked=0, Total=3306 [2024-11-13 14:55:31,021 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 4574 mSDsluCounter, 3070 mSDsCounter, 0 mSdLazyCounter, 2441 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4574 SdHoareTripleChecker+Valid, 3318 SdHoareTripleChecker+Invalid, 2532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:31,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4574 Valid, 3318 Invalid, 2532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2441 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 14:55:31,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241233 states. [2024-11-13 14:55:33,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241233 to 85328. [2024-11-13 14:55:33,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85328 states, 85327 states have (on average 1.1839863114840554) internal successors, (101026), 85327 states have internal predecessors, (101026), 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) [2024-11-13 14:55:33,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85328 states to 85328 states and 101026 transitions. [2024-11-13 14:55:33,507 INFO L78 Accepts]: Start accepts. Automaton has 85328 states and 101026 transitions. Word has length 105 [2024-11-13 14:55:33,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:33,507 INFO L471 AbstractCegarLoop]: Abstraction has 85328 states and 101026 transitions. [2024-11-13 14:55:33,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.566666666666666) internal successors, (257), 29 states have internal predecessors, (257), 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) [2024-11-13 14:55:33,507 INFO L276 IsEmpty]: Start isEmpty. Operand 85328 states and 101026 transitions. [2024-11-13 14:55:33,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-13 14:55:33,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:33,518 INFO L215 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] [2024-11-13 14:55:33,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 14:55:33,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-13 14:55:33,718 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)] === [2024-11-13 14:55:33,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:33,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1932584356, now seen corresponding path program 1 times [2024-11-13 14:55:33,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:33,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963850081] [2024-11-13 14:55:33,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:33,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:34,120 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-13 14:55:34,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:34,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963850081] [2024-11-13 14:55:34,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963850081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:34,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:55:34,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 14:55:34,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529722545] [2024-11-13 14:55:34,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:34,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:55:34,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:34,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:55:34,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:55:34,123 INFO L87 Difference]: Start difference. First operand 85328 states and 101026 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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) [2024-11-13 14:55:35,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:35,305 INFO L93 Difference]: Finished difference Result 219724 states and 260899 transitions. [2024-11-13 14:55:35,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 14:55:35,306 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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 [2024-11-13 14:55:35,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:35,499 INFO L225 Difference]: With dead ends: 219724 [2024-11-13 14:55:35,499 INFO L226 Difference]: Without dead ends: 150426 [2024-11-13 14:55:36,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:55:36,150 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 1088 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:36,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1088 Valid, 994 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:55:36,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150426 states. [2024-11-13 14:55:37,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150426 to 84986. [2024-11-13 14:55:37,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84986 states, 84985 states have (on average 1.1841030770135907) internal successors, (100631), 84985 states have internal predecessors, (100631), 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) [2024-11-13 14:55:37,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84986 states to 84986 states and 100631 transitions. [2024-11-13 14:55:37,848 INFO L78 Accepts]: Start accepts. Automaton has 84986 states and 100631 transitions. Word has length 106 [2024-11-13 14:55:37,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:37,848 INFO L471 AbstractCegarLoop]: Abstraction has 84986 states and 100631 transitions. [2024-11-13 14:55:37,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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) [2024-11-13 14:55:37,848 INFO L276 IsEmpty]: Start isEmpty. Operand 84986 states and 100631 transitions. [2024-11-13 14:55:37,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 14:55:37,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:37,859 INFO L215 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, 1] [2024-11-13 14:55:37,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-13 14:55:37,859 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)] === [2024-11-13 14:55:37,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:37,860 INFO L85 PathProgramCache]: Analyzing trace with hash 267119185, now seen corresponding path program 1 times [2024-11-13 14:55:37,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:37,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047685933] [2024-11-13 14:55:37,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:37,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:37,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:38,593 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:55:38,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:38,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047685933] [2024-11-13 14:55:38,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047685933] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:55:38,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010196955] [2024-11-13 14:55:38,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:38,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:38,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:55:38,597 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:55:38,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 14:55:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:38,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 14:55:38,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:40,762 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:55:40,762 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:55:41,968 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:55:41,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010196955] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:55:41,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:55:41,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 12] total 34 [2024-11-13 14:55:41,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970408938] [2024-11-13 14:55:41,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:55:41,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-13 14:55:41,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:41,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-13 14:55:41,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1011, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 14:55:41,972 INFO L87 Difference]: Start difference. First operand 84986 states and 100631 transitions. Second operand has 34 states, 34 states have (on average 7.617647058823529) internal successors, (259), 34 states have internal predecessors, (259), 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) [2024-11-13 14:55:45,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:45,160 INFO L93 Difference]: Finished difference Result 190692 states and 226328 transitions. [2024-11-13 14:55:45,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-13 14:55:45,161 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 7.617647058823529) internal successors, (259), 34 states have internal predecessors, (259), 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 107 [2024-11-13 14:55:45,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:45,398 INFO L225 Difference]: With dead ends: 190692 [2024-11-13 14:55:45,399 INFO L226 Difference]: Without dead ends: 170776 [2024-11-13 14:55:45,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 195 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=520, Invalid=2450, Unknown=0, NotChecked=0, Total=2970 [2024-11-13 14:55:45,450 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 1863 mSDsluCounter, 7149 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1863 SdHoareTripleChecker+Valid, 7599 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:45,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1863 Valid, 7599 Invalid, 1396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 14:55:45,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170776 states. [2024-11-13 14:55:47,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170776 to 85024. [2024-11-13 14:55:47,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85024 states, 85023 states have (on average 1.1840207943732872) internal successors, (100669), 85023 states have internal predecessors, (100669), 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) [2024-11-13 14:55:47,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85024 states to 85024 states and 100669 transitions. [2024-11-13 14:55:47,287 INFO L78 Accepts]: Start accepts. Automaton has 85024 states and 100669 transitions. Word has length 107 [2024-11-13 14:55:47,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:47,287 INFO L471 AbstractCegarLoop]: Abstraction has 85024 states and 100669 transitions. [2024-11-13 14:55:47,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.617647058823529) internal successors, (259), 34 states have internal predecessors, (259), 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) [2024-11-13 14:55:47,287 INFO L276 IsEmpty]: Start isEmpty. Operand 85024 states and 100669 transitions. [2024-11-13 14:55:47,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 14:55:47,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:47,300 INFO L215 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, 1] [2024-11-13 14:55:47,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-13 14:55:47,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:47,501 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)] === [2024-11-13 14:55:47,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:47,502 INFO L85 PathProgramCache]: Analyzing trace with hash -851477358, now seen corresponding path program 1 times [2024-11-13 14:55:47,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:47,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844793176] [2024-11-13 14:55:47,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:47,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:47,556 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-13 14:55:47,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:47,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844793176] [2024-11-13 14:55:47,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844793176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:55:47,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:55:47,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:55:47,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858276928] [2024-11-13 14:55:47,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:55:47,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:55:47,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:47,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:55:47,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:55:47,561 INFO L87 Difference]: Start difference. First operand 85024 states and 100669 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) [2024-11-13 14:55:48,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:55:48,333 INFO L93 Difference]: Finished difference Result 117116 states and 138969 transitions. [2024-11-13 14:55:48,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:55:48,334 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 107 [2024-11-13 14:55:48,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:55:48,472 INFO L225 Difference]: With dead ends: 117116 [2024-11-13 14:55:48,472 INFO L226 Difference]: Without dead ends: 77744 [2024-11-13 14:55:48,505 INFO L431 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 [2024-11-13 14:55:48,505 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 188 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:55:48,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 324 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:55:48,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77744 states. [2024-11-13 14:55:49,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77744 to 77672. [2024-11-13 14:55:49,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77672 states, 77671 states have (on average 1.1786123521005265) internal successors, (91544), 77671 states have internal predecessors, (91544), 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) [2024-11-13 14:55:49,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77672 states to 77672 states and 91544 transitions. [2024-11-13 14:55:49,354 INFO L78 Accepts]: Start accepts. Automaton has 77672 states and 91544 transitions. Word has length 107 [2024-11-13 14:55:49,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:55:49,354 INFO L471 AbstractCegarLoop]: Abstraction has 77672 states and 91544 transitions. [2024-11-13 14:55:49,354 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) [2024-11-13 14:55:49,354 INFO L276 IsEmpty]: Start isEmpty. Operand 77672 states and 91544 transitions. [2024-11-13 14:55:49,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-13 14:55:49,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:55:49,362 INFO L215 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, 1, 1] [2024-11-13 14:55:49,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-13 14:55:49,362 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)] === [2024-11-13 14:55:49,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:55:49,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1472779697, now seen corresponding path program 1 times [2024-11-13 14:55:49,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:55:49,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388855993] [2024-11-13 14:55:49,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:49,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:55:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:50,478 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:55:50,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:55:50,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388855993] [2024-11-13 14:55:50,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388855993] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:55:50,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490143066] [2024-11-13 14:55:50,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:55:50,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:55:50,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:55:50,482 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:55:50,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2a65cf-39bd-4b8b-96d2-656542f16cce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 14:55:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:55:50,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-13 14:55:50,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:55:51,811 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:55:51,812 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:55:52,833 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:55:52,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490143066] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:55:52,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:55:52,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 33 [2024-11-13 14:55:52,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78743335] [2024-11-13 14:55:52,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:55:52,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-13 14:55:52,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:55:52,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-13 14:55:52,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 14:55:52,837 INFO L87 Difference]: Start difference. First operand 77672 states and 91544 transitions. Second operand has 33 states, 33 states have (on average 9.030303030303031) internal successors, (298), 33 states have internal predecessors, (298), 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) [2024-11-13 14:56:08,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:56:08,638 INFO L93 Difference]: Finished difference Result 251150 states and 296010 transitions. [2024-11-13 14:56:08,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2024-11-13 14:56:08,639 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 9.030303030303031) internal successors, (298), 33 states have internal predecessors, (298), 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 108 [2024-11-13 14:56:08,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:56:08,931 INFO L225 Difference]: With dead ends: 251150 [2024-11-13 14:56:08,931 INFO L226 Difference]: Without dead ends: 231306 [2024-11-13 14:56:08,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11254 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=4090, Invalid=28490, Unknown=0, NotChecked=0, Total=32580 [2024-11-13 14:56:08,982 INFO L432 NwaCegarLoop]: 313 mSDtfsCounter, 7196 mSDsluCounter, 5128 mSDsCounter, 0 mSdLazyCounter, 4701 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7196 SdHoareTripleChecker+Valid, 5441 SdHoareTripleChecker+Invalid, 4892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 4701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:56:08,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7196 Valid, 5441 Invalid, 4892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 4701 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-13 14:56:09,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231306 states.