./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.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_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/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_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/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_7fca14aa-ac3e-45ad-992f-ffc691825331/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 9a9140492f4e733c378f87636be646ccd8e7d2f60174537e06a80c7020d713fe --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:17:56,822 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:17:56,900 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:17:56,909 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:17:56,912 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:17:56,937 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:17:56,938 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:17:56,938 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:17:56,938 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:17:56,938 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:17:56,938 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:17:56,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:17:56,939 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:17:56,939 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:17:56,939 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:17:56,939 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:17:56,939 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:17:56,939 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:17:56,940 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:17:56,940 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:17:56,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:17:56,940 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:17:56,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:17:56,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:17:56,940 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:17:56,940 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:17:56,940 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:17:56,940 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:17:56,941 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:17:56,941 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:17:56,941 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:17:56,941 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:17:56,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:17:56,941 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:17:56,941 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:17:56,942 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:17:56,942 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:17:56,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:17:56,942 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:17:56,942 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:17:56,942 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:17:56,942 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:17:56,942 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_7fca14aa-ac3e-45ad-992f-ffc691825331/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 -> 9a9140492f4e733c378f87636be646ccd8e7d2f60174537e06a80c7020d713fe [2024-11-13 13:17:57,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:17:57,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:17:57,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:17:57,302 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:17:57,302 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:17:57,305 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c Unable to find full path for "g++" [2024-11-13 13:17:59,329 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:17:59,833 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:17:59,833 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2024-11-13 13:17:59,862 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/data/160885d15/d8e62639ead24d83935a3ac75daf1810/FLAG1d5d377de [2024-11-13 13:17:59,889 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/data/160885d15/d8e62639ead24d83935a3ac75daf1810 [2024-11-13 13:17:59,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:17:59,893 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:17:59,895 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:17:59,895 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:17:59,901 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:17:59,902 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:17:59" (1/1) ... [2024-11-13 13:17:59,905 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a203221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:17:59, skipping insertion in model container [2024-11-13 13:17:59,906 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:17:59" (1/1) ... [2024-11-13 13:18:00,001 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:18:00,271 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_7fca14aa-ac3e-45ad-992f-ffc691825331/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8635,8648] [2024-11-13 13:18:00,335 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_7fca14aa-ac3e-45ad-992f-ffc691825331/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15820,15833] [2024-11-13 13:18:00,351 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_7fca14aa-ac3e-45ad-992f-ffc691825331/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18017,18030] [2024-11-13 13:18:00,361 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_7fca14aa-ac3e-45ad-992f-ffc691825331/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[19041,19054] [2024-11-13 13:18:00,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:18:00,561 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:18:00,616 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_7fca14aa-ac3e-45ad-992f-ffc691825331/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8635,8648] [2024-11-13 13:18:00,650 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_7fca14aa-ac3e-45ad-992f-ffc691825331/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15820,15833] [2024-11-13 13:18:00,661 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_7fca14aa-ac3e-45ad-992f-ffc691825331/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18017,18030] [2024-11-13 13:18:00,665 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_7fca14aa-ac3e-45ad-992f-ffc691825331/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[19041,19054] [2024-11-13 13:18:00,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:18:00,817 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:18:00,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:00 WrapperNode [2024-11-13 13:18:00,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:18:00,821 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:18:00,821 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:18:00,821 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:18:00,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:00" (1/1) ... [2024-11-13 13:18:00,862 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:00" (1/1) ... [2024-11-13 13:18:00,981 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2844 [2024-11-13 13:18:00,981 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:18:00,981 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:18:00,982 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:18:00,982 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:18:00,993 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:00" (1/1) ... [2024-11-13 13:18:00,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:00" (1/1) ... [2024-11-13 13:18:01,006 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:00" (1/1) ... [2024-11-13 13:18:01,051 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 13:18:01,051 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:00" (1/1) ... [2024-11-13 13:18:01,051 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:00" (1/1) ... [2024-11-13 13:18:01,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:00" (1/1) ... [2024-11-13 13:18:01,103 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:00" (1/1) ... [2024-11-13 13:18:01,117 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:00" (1/1) ... [2024-11-13 13:18:01,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:00" (1/1) ... [2024-11-13 13:18:01,149 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:18:01,152 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:18:01,152 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:18:01,152 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:18:01,153 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:00" (1/1) ... [2024-11-13 13:18:01,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:18:01,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:18:01,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:18:01,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:18:01,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:18:01,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:18:01,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:18:01,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:18:01,488 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:18:01,490 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:18:03,606 INFO L? ?]: Removed 486 outVars from TransFormulas that were not future-live. [2024-11-13 13:18:03,606 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:18:03,629 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:18:03,629 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 13:18:03,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:18:03 BoogieIcfgContainer [2024-11-13 13:18:03,630 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:18:03,633 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:18:03,633 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:18:03,637 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:18:03,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:17:59" (1/3) ... [2024-11-13 13:18:03,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67a949a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:18:03, skipping insertion in model container [2024-11-13 13:18:03,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:00" (2/3) ... [2024-11-13 13:18:03,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67a949a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:18:03, skipping insertion in model container [2024-11-13 13:18:03,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:18:03" (3/3) ... [2024-11-13 13:18:03,640 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2024-11-13 13:18:03,655 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:18:03,659 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c that has 1 procedures, 457 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-13 13:18:03,754 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:18:03,767 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;@3cc45784, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:18:03,767 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-13 13:18:03,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 457 states, 452 states have (on average 1.8495575221238938) internal successors, (836), 456 states have internal predecessors, (836), 0 states have call successors, (0), 0 states 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 13:18:03,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 13:18:03,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:03,797 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 13:18:03,797 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 13:18:03,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:03,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1707798208, now seen corresponding path program 1 times [2024-11-13 13:18:03,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:03,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215224324] [2024-11-13 13:18:03,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:03,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:04,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:04,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:04,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215224324] [2024-11-13 13:18:04,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215224324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:04,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:04,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:18:04,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81781206] [2024-11-13 13:18:04,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:04,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:18:04,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:04,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:18:04,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:18:04,487 INFO L87 Difference]: Start difference. First operand has 457 states, 452 states have (on average 1.8495575221238938) internal successors, (836), 456 states have internal predecessors, (836), 0 states have call successors, (0), 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 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:18:04,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:04,663 INFO L93 Difference]: Finished difference Result 725 states and 1271 transitions. [2024-11-13 13:18:04,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:18:04,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-13 13:18:04,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:04,684 INFO L225 Difference]: With dead ends: 725 [2024-11-13 13:18:04,685 INFO L226 Difference]: Without dead ends: 571 [2024-11-13 13:18:04,688 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 13:18:04,692 INFO L432 NwaCegarLoop]: 865 mSDtfsCounter, 438 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1416 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 13:18:04,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 1416 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:18:04,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-11-13 13:18:04,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 565. [2024-11-13 13:18:04,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 561 states have (on average 1.3440285204991087) internal successors, (754), 564 states have internal predecessors, (754), 0 states have call successors, (0), 0 states 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 13:18:04,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 754 transitions. [2024-11-13 13:18:04,784 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 754 transitions. Word has length 51 [2024-11-13 13:18:04,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:04,785 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 754 transitions. [2024-11-13 13:18:04,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:18:04,786 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 754 transitions. [2024-11-13 13:18:04,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 13:18:04,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:04,793 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 13:18:04,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:18:04,793 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 13:18:04,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:04,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1349444518, now seen corresponding path program 1 times [2024-11-13 13:18:04,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:04,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264276052] [2024-11-13 13:18:04,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:04,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:04,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:05,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:05,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:05,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264276052] [2024-11-13 13:18:05,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264276052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:05,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:05,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:18:05,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120508128] [2024-11-13 13:18:05,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:05,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:18:05,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:05,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:18:05,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:18:05,009 INFO L87 Difference]: Start difference. First operand 565 states and 754 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:18:05,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:05,151 INFO L93 Difference]: Finished difference Result 994 states and 1379 transitions. [2024-11-13 13:18:05,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:18:05,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-13 13:18:05,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:05,155 INFO L225 Difference]: With dead ends: 994 [2024-11-13 13:18:05,155 INFO L226 Difference]: Without dead ends: 781 [2024-11-13 13:18:05,156 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 13:18:05,157 INFO L432 NwaCegarLoop]: 618 mSDtfsCounter, 314 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1017 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 13:18:05,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1017 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:18:05,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2024-11-13 13:18:05,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 774. [2024-11-13 13:18:05,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 770 states have (on average 1.3714285714285714) internal successors, (1056), 773 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states 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 13:18:05,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1056 transitions. [2024-11-13 13:18:05,193 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1056 transitions. Word has length 51 [2024-11-13 13:18:05,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:05,194 INFO L471 AbstractCegarLoop]: Abstraction has 774 states and 1056 transitions. [2024-11-13 13:18:05,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:18:05,194 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1056 transitions. [2024-11-13 13:18:05,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 13:18:05,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:05,196 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 13:18:05,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:18:05,197 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 13:18:05,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:05,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1493728400, now seen corresponding path program 1 times [2024-11-13 13:18:05,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:05,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24334922] [2024-11-13 13:18:05,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:05,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:05,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:05,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:05,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24334922] [2024-11-13 13:18:05,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24334922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:05,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:05,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:18:05,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966166106] [2024-11-13 13:18:05,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:05,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:18:05,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:05,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:18:05,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:18:05,495 INFO L87 Difference]: Start difference. First operand 774 states and 1056 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 13:18:06,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:06,044 INFO L93 Difference]: Finished difference Result 1716 states and 2415 transitions. [2024-11-13 13:18:06,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:18:06,045 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 13:18:06,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:06,049 INFO L225 Difference]: With dead ends: 1716 [2024-11-13 13:18:06,049 INFO L226 Difference]: Without dead ends: 1059 [2024-11-13 13:18:06,051 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 13:18:06,051 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 1743 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:06,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 391 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 13:18:06,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2024-11-13 13:18:06,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 1053. [2024-11-13 13:18:06,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 1049 states have (on average 1.4089609151572926) internal successors, (1478), 1052 states have internal predecessors, (1478), 0 states have call successors, (0), 0 states 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 13:18:06,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1478 transitions. [2024-11-13 13:18:06,084 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1478 transitions. Word has length 51 [2024-11-13 13:18:06,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:06,084 INFO L471 AbstractCegarLoop]: Abstraction has 1053 states and 1478 transitions. [2024-11-13 13:18:06,085 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 13:18:06,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1478 transitions. [2024-11-13 13:18:06,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-13 13:18:06,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:06,086 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 13:18:06,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:18:06,087 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 13:18:06,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:06,087 INFO L85 PathProgramCache]: Analyzing trace with hash -358090099, now seen corresponding path program 1 times [2024-11-13 13:18:06,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:06,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998564394] [2024-11-13 13:18:06,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:06,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:06,194 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 13:18:06,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:06,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998564394] [2024-11-13 13:18:06,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998564394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:06,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:06,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:18:06,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554490270] [2024-11-13 13:18:06,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:06,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:18:06,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:06,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:18:06,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:18:06,195 INFO L87 Difference]: Start difference. First operand 1053 states and 1478 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 13:18:06,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:06,263 INFO L93 Difference]: Finished difference Result 2099 states and 2965 transitions. [2024-11-13 13:18:06,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:18:06,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 13:18:06,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:06,269 INFO L225 Difference]: With dead ends: 2099 [2024-11-13 13:18:06,269 INFO L226 Difference]: Without dead ends: 1399 [2024-11-13 13:18:06,270 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 13:18:06,271 INFO L432 NwaCegarLoop]: 595 mSDtfsCounter, 364 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:06,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 929 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:18:06,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states. [2024-11-13 13:18:06,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 1385. [2024-11-13 13:18:06,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1385 states, 1381 states have (on average 1.3721940622737148) internal successors, (1895), 1384 states have internal predecessors, (1895), 0 states have call successors, (0), 0 states 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 13:18:06,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1385 states to 1385 states and 1895 transitions. [2024-11-13 13:18:06,325 INFO L78 Accepts]: Start accepts. Automaton has 1385 states and 1895 transitions. Word has length 52 [2024-11-13 13:18:06,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:06,326 INFO L471 AbstractCegarLoop]: Abstraction has 1385 states and 1895 transitions. [2024-11-13 13:18:06,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 13:18:06,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1385 states and 1895 transitions. [2024-11-13 13:18:06,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-13 13:18:06,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:06,334 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 13:18:06,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:18:06,334 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 13:18:06,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:06,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1296606516, now seen corresponding path program 1 times [2024-11-13 13:18:06,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:06,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389870328] [2024-11-13 13:18:06,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:06,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:06,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:06,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:06,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389870328] [2024-11-13 13:18:06,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389870328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:06,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:06,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:18:06,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723372946] [2024-11-13 13:18:06,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:06,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:18:06,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:06,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:18:06,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:18:06,577 INFO L87 Difference]: Start difference. First operand 1385 states and 1895 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:18:06,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:06,993 INFO L93 Difference]: Finished difference Result 2980 states and 4125 transitions. [2024-11-13 13:18:06,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:18:06,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-11-13 13:18:06,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:07,000 INFO L225 Difference]: With dead ends: 2980 [2024-11-13 13:18:07,001 INFO L226 Difference]: Without dead ends: 1767 [2024-11-13 13:18:07,002 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 13:18:07,003 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 1527 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:07,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 367 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:18:07,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2024-11-13 13:18:07,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1755. [2024-11-13 13:18:07,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1755 states, 1751 states have (on average 1.3774985722444317) internal successors, (2412), 1754 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states 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 13:18:07,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1755 states to 1755 states and 2412 transitions. [2024-11-13 13:18:07,057 INFO L78 Accepts]: Start accepts. Automaton has 1755 states and 2412 transitions. Word has length 52 [2024-11-13 13:18:07,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:07,057 INFO L471 AbstractCegarLoop]: Abstraction has 1755 states and 2412 transitions. [2024-11-13 13:18:07,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:18:07,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1755 states and 2412 transitions. [2024-11-13 13:18:07,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-13 13:18:07,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:07,060 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 13:18:07,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:18:07,060 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 13:18:07,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:07,061 INFO L85 PathProgramCache]: Analyzing trace with hash -482685133, now seen corresponding path program 1 times [2024-11-13 13:18:07,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:07,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353238885] [2024-11-13 13:18:07,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:07,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:07,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:07,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:07,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353238885] [2024-11-13 13:18:07,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353238885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:07,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:07,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:18:07,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132622509] [2024-11-13 13:18:07,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:07,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:18:07,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:07,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:18:07,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:18:07,262 INFO L87 Difference]: Start difference. First operand 1755 states and 2412 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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 13:18:07,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:07,685 INFO L93 Difference]: Finished difference Result 3900 states and 5393 transitions. [2024-11-13 13:18:07,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:18:07,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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 13:18:07,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:07,695 INFO L225 Difference]: With dead ends: 3900 [2024-11-13 13:18:07,696 INFO L226 Difference]: Without dead ends: 2317 [2024-11-13 13:18:07,698 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 13:18:07,702 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 1376 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:07,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1376 Valid, 335 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:18:07,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2024-11-13 13:18:07,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 2301. [2024-11-13 13:18:07,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2297 states have (on average 1.370047888550283) internal successors, (3147), 2300 states have internal predecessors, (3147), 0 states have call successors, (0), 0 states 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 13:18:07,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 3147 transitions. [2024-11-13 13:18:07,772 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 3147 transitions. Word has length 53 [2024-11-13 13:18:07,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:07,773 INFO L471 AbstractCegarLoop]: Abstraction has 2301 states and 3147 transitions. [2024-11-13 13:18:07,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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 13:18:07,773 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 3147 transitions. [2024-11-13 13:18:07,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-13 13:18:07,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:07,776 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 13:18:07,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:18:07,777 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 13:18:07,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:07,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1630046103, now seen corresponding path program 1 times [2024-11-13 13:18:07,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:07,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286712957] [2024-11-13 13:18:07,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:07,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:08,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:08,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:08,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286712957] [2024-11-13 13:18:08,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286712957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:08,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:08,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:18:08,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853977230] [2024-11-13 13:18:08,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:08,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:18:08,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:08,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:18:08,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:18:08,057 INFO L87 Difference]: Start difference. First operand 2301 states and 3147 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 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 13:18:08,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:08,665 INFO L93 Difference]: Finished difference Result 4539 states and 6295 transitions. [2024-11-13 13:18:08,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:18:08,666 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 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 13:18:08,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:08,677 INFO L225 Difference]: With dead ends: 4539 [2024-11-13 13:18:08,677 INFO L226 Difference]: Without dead ends: 3497 [2024-11-13 13:18:08,678 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 13:18:08,679 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 1704 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:08,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1704 Valid, 583 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:18:08,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3497 states. [2024-11-13 13:18:08,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3497 to 2315. [2024-11-13 13:18:08,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2315 states, 2311 states have (on average 1.3695369969710083) internal successors, (3165), 2314 states have internal predecessors, (3165), 0 states have call successors, (0), 0 states 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 13:18:08,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2315 states to 2315 states and 3165 transitions. [2024-11-13 13:18:08,768 INFO L78 Accepts]: Start accepts. Automaton has 2315 states and 3165 transitions. Word has length 54 [2024-11-13 13:18:08,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:08,769 INFO L471 AbstractCegarLoop]: Abstraction has 2315 states and 3165 transitions. [2024-11-13 13:18:08,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 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 13:18:08,770 INFO L276 IsEmpty]: Start isEmpty. Operand 2315 states and 3165 transitions. [2024-11-13 13:18:08,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-13 13:18:08,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:08,772 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 13:18:08,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 13:18:08,772 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 13:18:08,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:08,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1470909546, now seen corresponding path program 1 times [2024-11-13 13:18:08,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:08,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576823116] [2024-11-13 13:18:08,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:08,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:09,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:09,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:09,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576823116] [2024-11-13 13:18:09,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576823116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:09,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:09,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:18:09,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272670334] [2024-11-13 13:18:09,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:09,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:18:09,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:09,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:18:09,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:18:09,026 INFO L87 Difference]: Start difference. First operand 2315 states and 3165 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 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 13:18:09,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:09,594 INFO L93 Difference]: Finished difference Result 4999 states and 6959 transitions. [2024-11-13 13:18:09,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:18:09,595 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 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 13:18:09,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:09,608 INFO L225 Difference]: With dead ends: 4999 [2024-11-13 13:18:09,608 INFO L226 Difference]: Without dead ends: 4152 [2024-11-13 13:18:09,610 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 13:18:09,611 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 1829 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1829 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:09,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1829 Valid, 618 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 13:18:09,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4152 states. [2024-11-13 13:18:09,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4152 to 2337. [2024-11-13 13:18:09,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2337 states, 2333 states have (on average 1.36990998714102) internal successors, (3196), 2336 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states 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 13:18:09,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2337 states to 2337 states and 3196 transitions. [2024-11-13 13:18:09,694 INFO L78 Accepts]: Start accepts. Automaton has 2337 states and 3196 transitions. Word has length 54 [2024-11-13 13:18:09,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:09,695 INFO L471 AbstractCegarLoop]: Abstraction has 2337 states and 3196 transitions. [2024-11-13 13:18:09,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 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 13:18:09,695 INFO L276 IsEmpty]: Start isEmpty. Operand 2337 states and 3196 transitions. [2024-11-13 13:18:09,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-13 13:18:09,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:09,697 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 13:18:09,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:18:09,698 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 13:18:09,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:09,698 INFO L85 PathProgramCache]: Analyzing trace with hash 269556297, now seen corresponding path program 1 times [2024-11-13 13:18:09,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:09,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933520004] [2024-11-13 13:18:09,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:09,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:09,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:09,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:09,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933520004] [2024-11-13 13:18:09,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933520004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:09,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:09,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:18:09,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999930918] [2024-11-13 13:18:09,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:09,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:18:09,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:09,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:18:09,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:18:09,957 INFO L87 Difference]: Start difference. First operand 2337 states and 3196 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 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 13:18:10,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:10,590 INFO L93 Difference]: Finished difference Result 5833 states and 8113 transitions. [2024-11-13 13:18:10,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:18:10,591 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 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 13:18:10,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:10,609 INFO L225 Difference]: With dead ends: 5833 [2024-11-13 13:18:10,609 INFO L226 Difference]: Without dead ends: 4865 [2024-11-13 13:18:10,612 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 13:18:10,612 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 1951 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1951 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:10,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1951 Valid, 632 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 13:18:10,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4865 states. [2024-11-13 13:18:10,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4865 to 2371. [2024-11-13 13:18:10,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2371 states, 2367 states have (on average 1.3688212927756653) internal successors, (3240), 2370 states have internal predecessors, (3240), 0 states have call successors, (0), 0 states 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 13:18:10,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2371 states to 2371 states and 3240 transitions. [2024-11-13 13:18:10,727 INFO L78 Accepts]: Start accepts. Automaton has 2371 states and 3240 transitions. Word has length 54 [2024-11-13 13:18:10,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:10,728 INFO L471 AbstractCegarLoop]: Abstraction has 2371 states and 3240 transitions. [2024-11-13 13:18:10,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 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 13:18:10,728 INFO L276 IsEmpty]: Start isEmpty. Operand 2371 states and 3240 transitions. [2024-11-13 13:18:10,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-13 13:18:10,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:10,731 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 13:18:10,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 13:18:10,732 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 13:18:10,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:10,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1866987345, now seen corresponding path program 1 times [2024-11-13 13:18:10,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:10,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173200827] [2024-11-13 13:18:10,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:10,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:11,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:11,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:11,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173200827] [2024-11-13 13:18:11,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173200827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:11,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:11,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:18:11,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710977727] [2024-11-13 13:18:11,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:11,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:18:11,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:11,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:18:11,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:18:11,141 INFO L87 Difference]: Start difference. First operand 2371 states and 3240 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 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 13:18:11,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:11,776 INFO L93 Difference]: Finished difference Result 4800 states and 6691 transitions. [2024-11-13 13:18:11,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:18:11,777 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 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 13:18:11,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:11,786 INFO L225 Difference]: With dead ends: 4800 [2024-11-13 13:18:11,786 INFO L226 Difference]: Without dead ends: 3256 [2024-11-13 13:18:11,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:18:11,789 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 1966 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1966 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:11,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1966 Valid, 765 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 13:18:11,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3256 states. [2024-11-13 13:18:11,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3256 to 2284. [2024-11-13 13:18:11,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2284 states, 2280 states have (on average 1.3675438596491227) internal successors, (3118), 2283 states have internal predecessors, (3118), 0 states have call successors, (0), 0 states 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 13:18:11,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 3118 transitions. [2024-11-13 13:18:11,851 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 3118 transitions. Word has length 55 [2024-11-13 13:18:11,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:11,851 INFO L471 AbstractCegarLoop]: Abstraction has 2284 states and 3118 transitions. [2024-11-13 13:18:11,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 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 13:18:11,852 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 3118 transitions. [2024-11-13 13:18:11,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-13 13:18:11,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:11,854 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 13:18:11,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 13:18:11,854 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 13:18:11,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:11,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1508633655, now seen corresponding path program 1 times [2024-11-13 13:18:11,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:11,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953943986] [2024-11-13 13:18:11,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:11,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:12,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:12,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:12,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953943986] [2024-11-13 13:18:12,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953943986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:12,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:12,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 13:18:12,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906996965] [2024-11-13 13:18:12,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:12,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:18:12,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:12,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:18:12,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:18:12,259 INFO L87 Difference]: Start difference. First operand 2284 states and 3118 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 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 13:18:13,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:13,152 INFO L93 Difference]: Finished difference Result 4905 states and 6809 transitions. [2024-11-13 13:18:13,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 13:18:13,153 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 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 13:18:13,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:13,171 INFO L225 Difference]: With dead ends: 4905 [2024-11-13 13:18:13,171 INFO L226 Difference]: Without dead ends: 3515 [2024-11-13 13:18:13,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2024-11-13 13:18:13,175 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 1759 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:13,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1759 Valid, 1258 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 13:18:13,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3515 states. [2024-11-13 13:18:13,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3515 to 2255. [2024-11-13 13:18:13,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2255 states, 2251 states have (on average 1.3669480231008442) internal successors, (3077), 2254 states have internal predecessors, (3077), 0 states have call successors, (0), 0 states 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 13:18:13,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3077 transitions. [2024-11-13 13:18:13,232 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3077 transitions. Word has length 55 [2024-11-13 13:18:13,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:13,232 INFO L471 AbstractCegarLoop]: Abstraction has 2255 states and 3077 transitions. [2024-11-13 13:18:13,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 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 13:18:13,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3077 transitions. [2024-11-13 13:18:13,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-13 13:18:13,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:13,234 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 13:18:13,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 13:18:13,235 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 13:18:13,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:13,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1235712110, now seen corresponding path program 1 times [2024-11-13 13:18:13,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:13,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661516655] [2024-11-13 13:18:13,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:13,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:13,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:13,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:13,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661516655] [2024-11-13 13:18:13,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661516655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:13,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:13,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 13:18:13,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840434070] [2024-11-13 13:18:13,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:13,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:18:13,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:13,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:18:13,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:18:13,652 INFO L87 Difference]: Start difference. First operand 2255 states and 3077 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 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 13:18:14,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:14,542 INFO L93 Difference]: Finished difference Result 3349 states and 4593 transitions. [2024-11-13 13:18:14,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 13:18:14,543 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 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 13:18:14,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:14,550 INFO L225 Difference]: With dead ends: 3349 [2024-11-13 13:18:14,550 INFO L226 Difference]: Without dead ends: 3344 [2024-11-13 13:18:14,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2024-11-13 13:18:14,552 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 2037 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2037 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:14,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2037 Valid, 1069 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 13:18:14,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3344 states. [2024-11-13 13:18:14,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3344 to 2255. [2024-11-13 13:18:14,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2255 states, 2251 states have (on average 1.3660595290981785) internal successors, (3075), 2254 states have internal predecessors, (3075), 0 states have call successors, (0), 0 states 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 13:18:14,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3075 transitions. [2024-11-13 13:18:14,603 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3075 transitions. Word has length 55 [2024-11-13 13:18:14,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:14,603 INFO L471 AbstractCegarLoop]: Abstraction has 2255 states and 3075 transitions. [2024-11-13 13:18:14,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 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 13:18:14,604 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3075 transitions. [2024-11-13 13:18:14,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-13 13:18:14,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:14,606 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] [2024-11-13 13:18:14,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 13:18:14,606 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 13:18:14,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:14,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1411677613, now seen corresponding path program 1 times [2024-11-13 13:18:14,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:14,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184696404] [2024-11-13 13:18:14,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:14,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:14,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:14,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:14,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184696404] [2024-11-13 13:18:14,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184696404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:14,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:14,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:18:14,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139784327] [2024-11-13 13:18:14,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:14,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:18:14,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:14,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:18:14,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:18:14,684 INFO L87 Difference]: Start difference. First operand 2255 states and 3075 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:18:14,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:14,739 INFO L93 Difference]: Finished difference Result 3200 states and 4403 transitions. [2024-11-13 13:18:14,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:18:14,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-13 13:18:14,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:14,745 INFO L225 Difference]: With dead ends: 3200 [2024-11-13 13:18:14,746 INFO L226 Difference]: Without dead ends: 2262 [2024-11-13 13:18:14,747 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 13:18:14,749 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 222 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:14,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 791 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:18:14,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2024-11-13 13:18:14,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 2255. [2024-11-13 13:18:14,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2255 states, 2251 states have (on average 1.3527321190581965) internal successors, (3045), 2254 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states 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 13:18:14,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3045 transitions. [2024-11-13 13:18:14,790 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3045 transitions. Word has length 56 [2024-11-13 13:18:14,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:14,790 INFO L471 AbstractCegarLoop]: Abstraction has 2255 states and 3045 transitions. [2024-11-13 13:18:14,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:18:14,791 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3045 transitions. [2024-11-13 13:18:14,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-13 13:18:14,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:14,793 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] [2024-11-13 13:18:14,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 13:18:14,793 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 13:18:14,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:14,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1038080617, now seen corresponding path program 1 times [2024-11-13 13:18:14,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:14,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478631878] [2024-11-13 13:18:14,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:14,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:14,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:14,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:14,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478631878] [2024-11-13 13:18:14,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478631878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:14,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:14,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:18:14,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226016474] [2024-11-13 13:18:14,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:14,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:18:14,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:14,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:18:14,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:18:14,878 INFO L87 Difference]: Start difference. First operand 2255 states and 3045 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:18:14,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:14,922 INFO L93 Difference]: Finished difference Result 3257 states and 4435 transitions. [2024-11-13 13:18:14,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:18:14,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-13 13:18:14,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:14,928 INFO L225 Difference]: With dead ends: 3257 [2024-11-13 13:18:14,928 INFO L226 Difference]: Without dead ends: 2261 [2024-11-13 13:18:14,934 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 13:18:14,934 INFO L432 NwaCegarLoop]: 511 mSDtfsCounter, 238 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 796 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 13:18:14,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 796 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:18:14,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2024-11-13 13:18:14,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2255. [2024-11-13 13:18:14,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2255 states, 2251 states have (on average 1.3402932030208796) internal successors, (3017), 2254 states have internal predecessors, (3017), 0 states have call successors, (0), 0 states 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 13:18:14,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3017 transitions. [2024-11-13 13:18:14,973 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3017 transitions. Word has length 56 [2024-11-13 13:18:14,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:14,973 INFO L471 AbstractCegarLoop]: Abstraction has 2255 states and 3017 transitions. [2024-11-13 13:18:14,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:18:14,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3017 transitions. [2024-11-13 13:18:14,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-13 13:18:14,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:14,976 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] [2024-11-13 13:18:14,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 13:18:14,976 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 13:18:14,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:14,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1735355720, now seen corresponding path program 1 times [2024-11-13 13:18:14,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:14,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711004088] [2024-11-13 13:18:14,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:14,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:15,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:15,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:15,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711004088] [2024-11-13 13:18:15,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711004088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:15,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:15,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:18:15,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61895709] [2024-11-13 13:18:15,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:15,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:18:15,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:15,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:18:15,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:18:15,051 INFO L87 Difference]: Start difference. First operand 2255 states and 3017 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:18:15,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:15,091 INFO L93 Difference]: Finished difference Result 3345 states and 4505 transitions. [2024-11-13 13:18:15,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:18:15,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-13 13:18:15,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:15,097 INFO L225 Difference]: With dead ends: 3345 [2024-11-13 13:18:15,097 INFO L226 Difference]: Without dead ends: 2246 [2024-11-13 13:18:15,101 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 13:18:15,101 INFO L432 NwaCegarLoop]: 500 mSDtfsCounter, 257 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 811 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 13:18:15,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 811 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:18:15,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2024-11-13 13:18:15,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2240. [2024-11-13 13:18:15,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2240 states, 2236 states have (on average 1.3206618962432917) internal successors, (2953), 2239 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states 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 13:18:15,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2240 states to 2240 states and 2953 transitions. [2024-11-13 13:18:15,150 INFO L78 Accepts]: Start accepts. Automaton has 2240 states and 2953 transitions. Word has length 56 [2024-11-13 13:18:15,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:15,151 INFO L471 AbstractCegarLoop]: Abstraction has 2240 states and 2953 transitions. [2024-11-13 13:18:15,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:18:15,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2240 states and 2953 transitions. [2024-11-13 13:18:15,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-13 13:18:15,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:15,154 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 13:18:15,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 13:18:15,155 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 13:18:15,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:15,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1293695138, now seen corresponding path program 1 times [2024-11-13 13:18:15,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:15,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344073817] [2024-11-13 13:18:15,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:15,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:15,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:15,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:15,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344073817] [2024-11-13 13:18:15,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344073817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:15,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:15,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:18:15,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977268019] [2024-11-13 13:18:15,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:15,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:18:15,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:15,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:18:15,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:18:15,267 INFO L87 Difference]: Start difference. First operand 2240 states and 2953 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 13:18:15,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:15,395 INFO L93 Difference]: Finished difference Result 4004 states and 5341 transitions. [2024-11-13 13:18:15,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:18:15,396 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 13:18:15,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:15,402 INFO L225 Difference]: With dead ends: 4004 [2024-11-13 13:18:15,402 INFO L226 Difference]: Without dead ends: 2744 [2024-11-13 13:18:15,404 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 13:18:15,404 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 346 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:15,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 548 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:18:15,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2744 states. [2024-11-13 13:18:15,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2744 to 2058. [2024-11-13 13:18:15,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2058 states, 2054 states have (on average 1.3227848101265822) internal successors, (2717), 2057 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states 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 13:18:15,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2058 states to 2058 states and 2717 transitions. [2024-11-13 13:18:15,443 INFO L78 Accepts]: Start accepts. Automaton has 2058 states and 2717 transitions. Word has length 57 [2024-11-13 13:18:15,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:15,444 INFO L471 AbstractCegarLoop]: Abstraction has 2058 states and 2717 transitions. [2024-11-13 13:18:15,444 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 13:18:15,444 INFO L276 IsEmpty]: Start isEmpty. Operand 2058 states and 2717 transitions. [2024-11-13 13:18:15,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 13:18:15,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:15,446 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 13:18:15,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 13:18:15,446 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 13:18:15,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:15,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1073895861, now seen corresponding path program 1 times [2024-11-13 13:18:15,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:15,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329511178] [2024-11-13 13:18:15,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:15,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:16,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:16,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:16,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329511178] [2024-11-13 13:18:16,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329511178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:16,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:16,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 13:18:16,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447397839] [2024-11-13 13:18:16,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:16,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 13:18:16,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:16,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 13:18:16,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:18:16,204 INFO L87 Difference]: Start difference. First operand 2058 states and 2717 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 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 13:18:17,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:17,106 INFO L93 Difference]: Finished difference Result 3155 states and 4203 transitions. [2024-11-13 13:18:17,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 13:18:17,106 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 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 13:18:17,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:17,112 INFO L225 Difference]: With dead ends: 3155 [2024-11-13 13:18:17,112 INFO L226 Difference]: Without dead ends: 2945 [2024-11-13 13:18:17,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2024-11-13 13:18:17,114 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 2130 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2130 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:17,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2130 Valid, 1617 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:18:17,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2024-11-13 13:18:17,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 2033. [2024-11-13 13:18:17,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2033 states, 2030 states have (on average 1.3236453201970444) internal successors, (2687), 2032 states have internal predecessors, (2687), 0 states have call successors, (0), 0 states 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 13:18:17,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2033 states to 2033 states and 2687 transitions. [2024-11-13 13:18:17,149 INFO L78 Accepts]: Start accepts. Automaton has 2033 states and 2687 transitions. Word has length 58 [2024-11-13 13:18:17,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:17,149 INFO L471 AbstractCegarLoop]: Abstraction has 2033 states and 2687 transitions. [2024-11-13 13:18:17,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 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 13:18:17,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2033 states and 2687 transitions. [2024-11-13 13:18:17,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 13:18:17,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:17,151 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 13:18:17,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 13:18:17,152 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 13:18:17,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:17,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1243428052, now seen corresponding path program 1 times [2024-11-13 13:18:17,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:17,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198571313] [2024-11-13 13:18:17,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:17,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:18,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:18,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:18,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198571313] [2024-11-13 13:18:18,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198571313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:18,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:18,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-13 13:18:18,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339162785] [2024-11-13 13:18:18,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:18,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 13:18:18,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:18,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 13:18:18,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2024-11-13 13:18:18,459 INFO L87 Difference]: Start difference. First operand 2033 states and 2687 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 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 13:18:21,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:21,325 INFO L93 Difference]: Finished difference Result 3633 states and 4838 transitions. [2024-11-13 13:18:21,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 13:18:21,326 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 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 13:18:21,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:21,333 INFO L225 Difference]: With dead ends: 3633 [2024-11-13 13:18:21,333 INFO L226 Difference]: Without dead ends: 3627 [2024-11-13 13:18:21,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=285, Invalid=975, Unknown=0, NotChecked=0, Total=1260 [2024-11-13 13:18:21,335 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 2399 mSDsluCounter, 3263 mSDsCounter, 0 mSdLazyCounter, 1889 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2399 SdHoareTripleChecker+Valid, 3585 SdHoareTripleChecker+Invalid, 1901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:21,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2399 Valid, 3585 Invalid, 1901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1889 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 13:18:21,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3627 states. [2024-11-13 13:18:21,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3627 to 2033. [2024-11-13 13:18:21,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2033 states, 2030 states have (on average 1.3231527093596058) internal successors, (2686), 2032 states have internal predecessors, (2686), 0 states have call successors, (0), 0 states 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 13:18:21,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2033 states to 2033 states and 2686 transitions. [2024-11-13 13:18:21,371 INFO L78 Accepts]: Start accepts. Automaton has 2033 states and 2686 transitions. Word has length 58 [2024-11-13 13:18:21,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:21,371 INFO L471 AbstractCegarLoop]: Abstraction has 2033 states and 2686 transitions. [2024-11-13 13:18:21,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 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 13:18:21,372 INFO L276 IsEmpty]: Start isEmpty. Operand 2033 states and 2686 transitions. [2024-11-13 13:18:21,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 13:18:21,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:21,374 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 13:18:21,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 13:18:21,374 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 13:18:21,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:21,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1776503256, now seen corresponding path program 1 times [2024-11-13 13:18:21,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:21,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009998776] [2024-11-13 13:18:21,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:21,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:21,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:22,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:22,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:22,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009998776] [2024-11-13 13:18:22,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009998776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:22,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:22,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 13:18:22,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928955383] [2024-11-13 13:18:22,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:22,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 13:18:22,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:22,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 13:18:22,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:18:22,030 INFO L87 Difference]: Start difference. First operand 2033 states and 2686 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 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 13:18:22,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:22,989 INFO L93 Difference]: Finished difference Result 2994 states and 3982 transitions. [2024-11-13 13:18:22,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 13:18:22,990 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 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 13:18:22,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:22,997 INFO L225 Difference]: With dead ends: 2994 [2024-11-13 13:18:22,997 INFO L226 Difference]: Without dead ends: 2930 [2024-11-13 13:18:22,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-13 13:18:22,999 INFO L432 NwaCegarLoop]: 335 mSDtfsCounter, 2057 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2057 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:22,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2057 Valid, 1555 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 13:18:23,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2024-11-13 13:18:23,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 2018. [2024-11-13 13:18:23,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2018 states, 2016 states have (on average 1.3239087301587302) internal successors, (2669), 2017 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states 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 13:18:23,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2018 states to 2018 states and 2669 transitions. [2024-11-13 13:18:23,036 INFO L78 Accepts]: Start accepts. Automaton has 2018 states and 2669 transitions. Word has length 58 [2024-11-13 13:18:23,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:23,036 INFO L471 AbstractCegarLoop]: Abstraction has 2018 states and 2669 transitions. [2024-11-13 13:18:23,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 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 13:18:23,036 INFO L276 IsEmpty]: Start isEmpty. Operand 2018 states and 2669 transitions. [2024-11-13 13:18:23,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 13:18:23,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:23,039 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 13:18:23,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 13:18:23,039 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 13:18:23,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:23,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1779959307, now seen corresponding path program 1 times [2024-11-13 13:18:23,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:23,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83973808] [2024-11-13 13:18:23,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:23,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:23,702 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 13:18:23,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:23,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83973808] [2024-11-13 13:18:23,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83973808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:23,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:23,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 13:18:23,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873167083] [2024-11-13 13:18:23,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:23,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 13:18:23,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:23,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 13:18:23,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:18:23,703 INFO L87 Difference]: Start difference. First operand 2018 states and 2669 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 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 13:18:24,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:24,760 INFO L93 Difference]: Finished difference Result 4108 states and 5510 transitions. [2024-11-13 13:18:24,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 13:18:24,761 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 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 13:18:24,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:24,770 INFO L225 Difference]: With dead ends: 4108 [2024-11-13 13:18:24,770 INFO L226 Difference]: Without dead ends: 3894 [2024-11-13 13:18:24,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2024-11-13 13:18:24,772 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 2414 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2414 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:24,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2414 Valid, 1528 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 13:18:24,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3894 states. [2024-11-13 13:18:24,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3894 to 1967. [2024-11-13 13:18:24,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1967 states, 1966 states have (on average 1.3260427263479146) internal successors, (2607), 1966 states have internal predecessors, (2607), 0 states have call successors, (0), 0 states 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 13:18:24,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1967 states to 1967 states and 2607 transitions. [2024-11-13 13:18:24,811 INFO L78 Accepts]: Start accepts. Automaton has 1967 states and 2607 transitions. Word has length 58 [2024-11-13 13:18:24,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:24,811 INFO L471 AbstractCegarLoop]: Abstraction has 1967 states and 2607 transitions. [2024-11-13 13:18:24,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 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 13:18:24,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1967 states and 2607 transitions. [2024-11-13 13:18:24,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 13:18:24,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:24,815 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 13:18:24,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 13:18:24,816 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 13:18:24,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:24,816 INFO L85 PathProgramCache]: Analyzing trace with hash 590074057, now seen corresponding path program 1 times [2024-11-13 13:18:24,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:24,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610052348] [2024-11-13 13:18:24,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:24,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:24,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:24,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:24,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610052348] [2024-11-13 13:18:24,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610052348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:24,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:24,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:18:24,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760612824] [2024-11-13 13:18:24,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:24,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:18:24,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:24,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:18:24,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:18:24,955 INFO L87 Difference]: Start difference. First operand 1967 states and 2607 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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 13:18:25,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:25,073 INFO L93 Difference]: Finished difference Result 4481 states and 6118 transitions. [2024-11-13 13:18:25,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:18:25,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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 13:18:25,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:25,081 INFO L225 Difference]: With dead ends: 4481 [2024-11-13 13:18:25,081 INFO L226 Difference]: Without dead ends: 3327 [2024-11-13 13:18:25,083 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 13:18:25,084 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 1187 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:25,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 874 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:18:25,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3327 states. [2024-11-13 13:18:25,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3327 to 2952. [2024-11-13 13:18:25,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2952 states, 2951 states have (on average 1.3297187394103693) internal successors, (3924), 2951 states have internal predecessors, (3924), 0 states have call successors, (0), 0 states 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 13:18:25,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2952 states to 2952 states and 3924 transitions. [2024-11-13 13:18:25,132 INFO L78 Accepts]: Start accepts. Automaton has 2952 states and 3924 transitions. Word has length 68 [2024-11-13 13:18:25,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:25,132 INFO L471 AbstractCegarLoop]: Abstraction has 2952 states and 3924 transitions. [2024-11-13 13:18:25,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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 13:18:25,133 INFO L276 IsEmpty]: Start isEmpty. Operand 2952 states and 3924 transitions. [2024-11-13 13:18:25,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 13:18:25,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:25,138 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] [2024-11-13 13:18:25,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 13:18:25,139 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 13:18:25,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:25,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1666510355, now seen corresponding path program 1 times [2024-11-13 13:18:25,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:25,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298894639] [2024-11-13 13:18:25,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:25,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:25,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:25,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:25,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298894639] [2024-11-13 13:18:25,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298894639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:25,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:25,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:18:25,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964615253] [2024-11-13 13:18:25,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:25,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:18:25,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:25,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:18:25,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:18:25,296 INFO L87 Difference]: Start difference. First operand 2952 states and 3924 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 13:18:25,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:25,411 INFO L93 Difference]: Finished difference Result 2958 states and 3927 transitions. [2024-11-13 13:18:25,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:18:25,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-13 13:18:25,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:25,419 INFO L225 Difference]: With dead ends: 2958 [2024-11-13 13:18:25,419 INFO L226 Difference]: Without dead ends: 2459 [2024-11-13 13:18:25,420 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 13:18:25,422 INFO L432 NwaCegarLoop]: 500 mSDtfsCounter, 780 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:25,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 836 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:18:25,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2459 states. [2024-11-13 13:18:25,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2459 to 2455. [2024-11-13 13:18:25,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2455 states, 2454 states have (on average 1.3333333333333333) internal successors, (3272), 2454 states have internal predecessors, (3272), 0 states have call successors, (0), 0 states 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 13:18:25,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2455 states to 2455 states and 3272 transitions. [2024-11-13 13:18:25,464 INFO L78 Accepts]: Start accepts. Automaton has 2455 states and 3272 transitions. Word has length 69 [2024-11-13 13:18:25,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:25,465 INFO L471 AbstractCegarLoop]: Abstraction has 2455 states and 3272 transitions. [2024-11-13 13:18:25,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 13:18:25,465 INFO L276 IsEmpty]: Start isEmpty. Operand 2455 states and 3272 transitions. [2024-11-13 13:18:25,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-13 13:18:25,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:25,469 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 13:18:25,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 13:18:25,470 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 13:18:25,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:25,470 INFO L85 PathProgramCache]: Analyzing trace with hash -533504505, now seen corresponding path program 1 times [2024-11-13 13:18:25,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:25,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030241577] [2024-11-13 13:18:25,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:25,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:25,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:25,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:25,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:25,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030241577] [2024-11-13 13:18:25,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030241577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:25,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:25,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:18:25,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923395152] [2024-11-13 13:18:25,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:25,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:18:25,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:25,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:18:25,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:18:25,618 INFO L87 Difference]: Start difference. First operand 2455 states and 3272 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 13:18:25,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:25,671 INFO L93 Difference]: Finished difference Result 5657 states and 7666 transitions. [2024-11-13 13:18:25,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:18:25,672 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 13:18:25,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:25,682 INFO L225 Difference]: With dead ends: 5657 [2024-11-13 13:18:25,682 INFO L226 Difference]: Without dead ends: 3861 [2024-11-13 13:18:25,684 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 13:18:25,685 INFO L432 NwaCegarLoop]: 397 mSDtfsCounter, 137 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:25,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 631 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:18:25,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3861 states. [2024-11-13 13:18:25,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3861 to 3651. [2024-11-13 13:18:25,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3651 states, 3650 states have (on average 1.330958904109589) internal successors, (4858), 3650 states have internal predecessors, (4858), 0 states have call successors, (0), 0 states 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 13:18:25,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3651 states to 3651 states and 4858 transitions. [2024-11-13 13:18:25,761 INFO L78 Accepts]: Start accepts. Automaton has 3651 states and 4858 transitions. Word has length 70 [2024-11-13 13:18:25,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:25,761 INFO L471 AbstractCegarLoop]: Abstraction has 3651 states and 4858 transitions. [2024-11-13 13:18:25,762 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 13:18:25,762 INFO L276 IsEmpty]: Start isEmpty. Operand 3651 states and 4858 transitions. [2024-11-13 13:18:25,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-13 13:18:25,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:25,765 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] [2024-11-13 13:18:25,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-13 13:18:25,766 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 13:18:25,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:25,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1110878122, now seen corresponding path program 1 times [2024-11-13 13:18:25,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:25,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174955893] [2024-11-13 13:18:25,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:25,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:25,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:25,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:25,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174955893] [2024-11-13 13:18:25,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174955893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:25,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:25,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:18:25,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934550917] [2024-11-13 13:18:25,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:25,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:18:25,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:25,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:18:25,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:18:25,890 INFO L87 Difference]: Start difference. First operand 3651 states and 4858 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states 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 13:18:25,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:25,948 INFO L93 Difference]: Finished difference Result 9303 states and 12576 transitions. [2024-11-13 13:18:25,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:18:25,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-13 13:18:25,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:25,965 INFO L225 Difference]: With dead ends: 9303 [2024-11-13 13:18:25,965 INFO L226 Difference]: Without dead ends: 6337 [2024-11-13 13:18:25,969 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 13:18:25,970 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 118 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:25,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 625 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:18:25,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6337 states. [2024-11-13 13:18:26,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6337 to 5839. [2024-11-13 13:18:26,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5839 states, 5838 states have (on average 1.3350462487153134) internal successors, (7794), 5838 states have internal predecessors, (7794), 0 states have call successors, (0), 0 states 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 13:18:26,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5839 states to 5839 states and 7794 transitions. [2024-11-13 13:18:26,054 INFO L78 Accepts]: Start accepts. Automaton has 5839 states and 7794 transitions. Word has length 71 [2024-11-13 13:18:26,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:26,054 INFO L471 AbstractCegarLoop]: Abstraction has 5839 states and 7794 transitions. [2024-11-13 13:18:26,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states 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 13:18:26,055 INFO L276 IsEmpty]: Start isEmpty. Operand 5839 states and 7794 transitions. [2024-11-13 13:18:26,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-13 13:18:26,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:26,058 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 13:18:26,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-13 13:18:26,059 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 13:18:26,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:26,060 INFO L85 PathProgramCache]: Analyzing trace with hash -396168239, now seen corresponding path program 1 times [2024-11-13 13:18:26,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:26,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836755010] [2024-11-13 13:18:26,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:26,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:26,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:26,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:26,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836755010] [2024-11-13 13:18:26,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836755010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:26,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:26,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:18:26,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086644889] [2024-11-13 13:18:26,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:26,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:18:26,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:26,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:18:26,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:18:26,203 INFO L87 Difference]: Start difference. First operand 5839 states and 7794 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 13:18:26,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:26,308 INFO L93 Difference]: Finished difference Result 15587 states and 20956 transitions. [2024-11-13 13:18:26,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:18:26,308 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 13:18:26,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:26,333 INFO L225 Difference]: With dead ends: 15587 [2024-11-13 13:18:26,333 INFO L226 Difference]: Without dead ends: 10433 [2024-11-13 13:18:26,340 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 13:18:26,341 INFO L432 NwaCegarLoop]: 363 mSDtfsCounter, 100 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:26,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 610 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:18:26,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10433 states. [2024-11-13 13:18:26,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10433 to 9439. [2024-11-13 13:18:26,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9439 states, 9438 states have (on average 1.3276117821572366) internal successors, (12530), 9438 states have internal predecessors, (12530), 0 states have call successors, (0), 0 states 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 13:18:26,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9439 states to 9439 states and 12530 transitions. [2024-11-13 13:18:26,553 INFO L78 Accepts]: Start accepts. Automaton has 9439 states and 12530 transitions. Word has length 73 [2024-11-13 13:18:26,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:26,555 INFO L471 AbstractCegarLoop]: Abstraction has 9439 states and 12530 transitions. [2024-11-13 13:18:26,555 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 13:18:26,555 INFO L276 IsEmpty]: Start isEmpty. Operand 9439 states and 12530 transitions. [2024-11-13 13:18:26,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-13 13:18:26,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:26,559 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] [2024-11-13 13:18:26,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-13 13:18:26,560 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 13:18:26,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:26,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1606128063, now seen corresponding path program 1 times [2024-11-13 13:18:26,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:26,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391660233] [2024-11-13 13:18:26,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:26,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:26,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:26,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:26,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391660233] [2024-11-13 13:18:26,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391660233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:26,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:26,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:18:26,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305024648] [2024-11-13 13:18:26,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:26,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:18:26,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:26,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:18:26,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:18:26,924 INFO L87 Difference]: Start difference. First operand 9439 states and 12530 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states 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 13:18:27,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:27,013 INFO L93 Difference]: Finished difference Result 10353 states and 13747 transitions. [2024-11-13 13:18:27,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:18:27,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-11-13 13:18:27,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:27,037 INFO L225 Difference]: With dead ends: 10353 [2024-11-13 13:18:27,037 INFO L226 Difference]: Without dead ends: 10351 [2024-11-13 13:18:27,040 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 13:18:27,040 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 0 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:27,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1514 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:18:27,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10351 states. [2024-11-13 13:18:27,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10351 to 10351. [2024-11-13 13:18:27,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10351 states, 10350 states have (on average 1.298743961352657) internal successors, (13442), 10350 states have internal predecessors, (13442), 0 states have call successors, (0), 0 states 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 13:18:27,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10351 states to 10351 states and 13442 transitions. [2024-11-13 13:18:27,174 INFO L78 Accepts]: Start accepts. Automaton has 10351 states and 13442 transitions. Word has length 75 [2024-11-13 13:18:27,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:27,175 INFO L471 AbstractCegarLoop]: Abstraction has 10351 states and 13442 transitions. [2024-11-13 13:18:27,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states 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 13:18:27,175 INFO L276 IsEmpty]: Start isEmpty. Operand 10351 states and 13442 transitions. [2024-11-13 13:18:27,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-13 13:18:27,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:27,179 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] [2024-11-13 13:18:27,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-13 13:18:27,179 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 13:18:27,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:27,180 INFO L85 PathProgramCache]: Analyzing trace with hash 824153179, now seen corresponding path program 1 times [2024-11-13 13:18:27,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:27,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317401041] [2024-11-13 13:18:27,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:27,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:27,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:27,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:27,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317401041] [2024-11-13 13:18:27,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317401041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:27,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:27,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:18:27,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689324785] [2024-11-13 13:18:27,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:27,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:18:27,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:27,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:18:27,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:18:27,263 INFO L87 Difference]: Start difference. First operand 10351 states and 13442 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:18:27,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:27,445 INFO L93 Difference]: Finished difference Result 24911 states and 32360 transitions. [2024-11-13 13:18:27,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:18:27,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-13 13:18:27,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:27,477 INFO L225 Difference]: With dead ends: 24911 [2024-11-13 13:18:27,477 INFO L226 Difference]: Without dead ends: 15245 [2024-11-13 13:18:27,483 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 13:18:27,484 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 223 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:27,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 459 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:18:27,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15245 states. [2024-11-13 13:18:27,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15245 to 15243. [2024-11-13 13:18:27,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15243 states, 15242 states have (on average 1.2826400734811705) internal successors, (19550), 15242 states have internal predecessors, (19550), 0 states have call successors, (0), 0 states 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 13:18:27,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15243 states to 15243 states and 19550 transitions. [2024-11-13 13:18:27,667 INFO L78 Accepts]: Start accepts. Automaton has 15243 states and 19550 transitions. Word has length 76 [2024-11-13 13:18:27,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:27,667 INFO L471 AbstractCegarLoop]: Abstraction has 15243 states and 19550 transitions. [2024-11-13 13:18:27,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:18:27,668 INFO L276 IsEmpty]: Start isEmpty. Operand 15243 states and 19550 transitions. [2024-11-13 13:18:27,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-13 13:18:27,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:27,671 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] [2024-11-13 13:18:27,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-13 13:18:27,671 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 13:18:27,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:27,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1756244585, now seen corresponding path program 1 times [2024-11-13 13:18:27,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:27,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15786674] [2024-11-13 13:18:27,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:27,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:27,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:27,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:27,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:27,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15786674] [2024-11-13 13:18:27,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15786674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:27,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:27,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:18:27,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539896368] [2024-11-13 13:18:27,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:27,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:18:27,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:27,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:18:27,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:18:27,801 INFO L87 Difference]: Start difference. First operand 15243 states and 19550 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states 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 13:18:27,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:27,944 INFO L93 Difference]: Finished difference Result 22049 states and 28430 transitions. [2024-11-13 13:18:27,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:18:27,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-11-13 13:18:27,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:27,983 INFO L225 Difference]: With dead ends: 22049 [2024-11-13 13:18:27,983 INFO L226 Difference]: Without dead ends: 18429 [2024-11-13 13:18:27,990 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 13:18:27,992 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 693 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:27,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 954 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:18:28,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18429 states. [2024-11-13 13:18:28,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18429 to 17181. [2024-11-13 13:18:28,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17181 states, 17180 states have (on average 1.278812572759022) internal successors, (21970), 17180 states have internal predecessors, (21970), 0 states have call successors, (0), 0 states 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 13:18:28,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17181 states to 17181 states and 21970 transitions. [2024-11-13 13:18:28,323 INFO L78 Accepts]: Start accepts. Automaton has 17181 states and 21970 transitions. Word has length 77 [2024-11-13 13:18:28,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:28,323 INFO L471 AbstractCegarLoop]: Abstraction has 17181 states and 21970 transitions. [2024-11-13 13:18:28,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states 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 13:18:28,324 INFO L276 IsEmpty]: Start isEmpty. Operand 17181 states and 21970 transitions. [2024-11-13 13:18:28,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-13 13:18:28,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:28,326 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:18:28,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-13 13:18:28,327 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 13:18:28,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:28,327 INFO L85 PathProgramCache]: Analyzing trace with hash -51175098, now seen corresponding path program 1 times [2024-11-13 13:18:28,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:28,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892687479] [2024-11-13 13:18:28,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:28,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:28,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:28,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:28,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892687479] [2024-11-13 13:18:28,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892687479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:28,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:28,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:18:28,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246095120] [2024-11-13 13:18:28,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:28,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:18:28,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:28,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:18:28,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:18:28,386 INFO L87 Difference]: Start difference. First operand 17181 states and 21970 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states 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 13:18:28,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:28,532 INFO L93 Difference]: Finished difference Result 33786 states and 43238 transitions. [2024-11-13 13:18:28,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:18:28,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-13 13:18:28,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:28,586 INFO L225 Difference]: With dead ends: 33786 [2024-11-13 13:18:28,586 INFO L226 Difference]: Without dead ends: 25841 [2024-11-13 13:18:28,597 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 13:18:28,602 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 225 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:28,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 360 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:18:28,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25841 states. [2024-11-13 13:18:28,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25841 to 16830. [2024-11-13 13:18:28,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16830 states, 16829 states have (on average 1.2764870164596827) internal successors, (21482), 16829 states have internal predecessors, (21482), 0 states have call successors, (0), 0 states 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 13:18:28,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16830 states to 16830 states and 21482 transitions. [2024-11-13 13:18:28,857 INFO L78 Accepts]: Start accepts. Automaton has 16830 states and 21482 transitions. Word has length 80 [2024-11-13 13:18:28,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:28,857 INFO L471 AbstractCegarLoop]: Abstraction has 16830 states and 21482 transitions. [2024-11-13 13:18:28,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states 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 13:18:28,857 INFO L276 IsEmpty]: Start isEmpty. Operand 16830 states and 21482 transitions. [2024-11-13 13:18:28,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-13 13:18:28,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:28,865 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, 1] [2024-11-13 13:18:28,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-13 13:18:28,865 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 13:18:28,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:28,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1593588101, now seen corresponding path program 1 times [2024-11-13 13:18:28,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:28,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569889769] [2024-11-13 13:18:28,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:28,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:29,387 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 13:18:29,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:29,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569889769] [2024-11-13 13:18:29,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569889769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:29,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:29,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 13:18:29,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512198421] [2024-11-13 13:18:29,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:29,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:18:29,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:29,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:18:29,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:18:29,389 INFO L87 Difference]: Start difference. First operand 16830 states and 21482 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 13:18:30,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:30,147 INFO L93 Difference]: Finished difference Result 35085 states and 44668 transitions. [2024-11-13 13:18:30,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 13:18:30,148 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 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 13:18:30,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:30,206 INFO L225 Difference]: With dead ends: 35085 [2024-11-13 13:18:30,206 INFO L226 Difference]: Without dead ends: 26869 [2024-11-13 13:18:30,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-13 13:18:30,218 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 1196 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:30,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 921 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 13:18:30,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26869 states. [2024-11-13 13:18:30,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26869 to 16764. [2024-11-13 13:18:30,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16764 states, 16763 states have (on average 1.2768597506412933) internal successors, (21404), 16763 states have internal predecessors, (21404), 0 states have call successors, (0), 0 states 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 13:18:30,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16764 states to 16764 states and 21404 transitions. [2024-11-13 13:18:30,594 INFO L78 Accepts]: Start accepts. Automaton has 16764 states and 21404 transitions. Word has length 95 [2024-11-13 13:18:30,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:30,594 INFO L471 AbstractCegarLoop]: Abstraction has 16764 states and 21404 transitions. [2024-11-13 13:18:30,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 13:18:30,594 INFO L276 IsEmpty]: Start isEmpty. Operand 16764 states and 21404 transitions. [2024-11-13 13:18:30,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-13 13:18:30,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:30,603 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, 1] [2024-11-13 13:18:30,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-13 13:18:30,604 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 13:18:30,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:30,605 INFO L85 PathProgramCache]: Analyzing trace with hash 670186457, now seen corresponding path program 1 times [2024-11-13 13:18:30,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:30,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702988485] [2024-11-13 13:18:30,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:30,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:31,224 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 13:18:31,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:31,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702988485] [2024-11-13 13:18:31,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702988485] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:18:31,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110663415] [2024-11-13 13:18:31,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:31,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:18:31,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:18:31,228 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:18:31,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:18:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:31,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 13:18:31,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:18:32,521 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 13:18:32,522 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:18:33,842 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 13:18:33,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110663415] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:18:33,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:18:33,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 25 [2024-11-13 13:18:33,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972963096] [2024-11-13 13:18:33,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:18:33,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-13 13:18:33,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:33,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-13 13:18:33,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650 [2024-11-13 13:18:33,847 INFO L87 Difference]: Start difference. First operand 16764 states and 21404 transitions. Second operand has 26 states, 26 states have (on average 9.346153846153847) internal successors, (243), 25 states have internal predecessors, (243), 0 states have call successors, (0), 0 states 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 13:18:35,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:35,769 INFO L93 Difference]: Finished difference Result 45967 states and 58808 transitions. [2024-11-13 13:18:35,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-13 13:18:35,770 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.346153846153847) internal successors, (243), 25 states have internal predecessors, (243), 0 states have call successors, (0), 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 13:18:35,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:35,831 INFO L225 Difference]: With dead ends: 45967 [2024-11-13 13:18:35,831 INFO L226 Difference]: Without dead ends: 38009 [2024-11-13 13:18:35,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=542, Invalid=1714, Unknown=0, NotChecked=0, Total=2256 [2024-11-13 13:18:35,847 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 1806 mSDsluCounter, 1715 mSDsCounter, 0 mSdLazyCounter, 1670 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1806 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:35,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1806 Valid, 1931 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1670 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 13:18:35,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38009 states. [2024-11-13 13:18:36,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38009 to 28388. [2024-11-13 13:18:36,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28388 states, 28387 states have (on average 1.278190721104731) internal successors, (36284), 28387 states have internal predecessors, (36284), 0 states have call successors, (0), 0 states 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 13:18:36,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28388 states to 28388 states and 36284 transitions. [2024-11-13 13:18:36,416 INFO L78 Accepts]: Start accepts. Automaton has 28388 states and 36284 transitions. Word has length 95 [2024-11-13 13:18:36,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:36,416 INFO L471 AbstractCegarLoop]: Abstraction has 28388 states and 36284 transitions. [2024-11-13 13:18:36,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.346153846153847) internal successors, (243), 25 states have internal predecessors, (243), 0 states have call successors, (0), 0 states 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 13:18:36,416 INFO L276 IsEmpty]: Start isEmpty. Operand 28388 states and 36284 transitions. [2024-11-13 13:18:36,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-13 13:18:36,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:36,425 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, 1, 1] [2024-11-13 13:18:36,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 13:18:36,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-13 13:18:36,630 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 13:18:36,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:36,631 INFO L85 PathProgramCache]: Analyzing trace with hash -161019492, now seen corresponding path program 1 times [2024-11-13 13:18:36,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:36,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285746306] [2024-11-13 13:18:36,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:36,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:36,965 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:36,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:36,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285746306] [2024-11-13 13:18:36,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285746306] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:18:36,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729708852] [2024-11-13 13:18:36,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:36,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:18:36,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:18:36,967 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:18:36,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:18:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:37,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 13:18:37,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:18:38,760 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:38,761 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:18:40,053 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:40,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729708852] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:18:40,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:18:40,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 12] total 28 [2024-11-13 13:18:40,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097090712] [2024-11-13 13:18:40,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:18:40,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-13 13:18:40,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:40,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-13 13:18:40,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=688, Unknown=0, NotChecked=0, Total=812 [2024-11-13 13:18:40,056 INFO L87 Difference]: Start difference. First operand 28388 states and 36284 transitions. Second operand has 29 states, 29 states have (on average 8.344827586206897) internal successors, (242), 28 states have internal predecessors, (242), 0 states have call successors, (0), 0 states 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 13:18:51,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:51,513 INFO L93 Difference]: Finished difference Result 147535 states and 186060 transitions. [2024-11-13 13:18:51,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2024-11-13 13:18:51,513 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 8.344827586206897) internal successors, (242), 28 states have internal predecessors, (242), 0 states have call successors, (0), 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 96 [2024-11-13 13:18:51,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:51,717 INFO L225 Difference]: With dead ends: 147535 [2024-11-13 13:18:51,717 INFO L226 Difference]: Without dead ends: 135494 [2024-11-13 13:18:51,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7338 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=3973, Invalid=17197, Unknown=0, NotChecked=0, Total=21170 [2024-11-13 13:18:51,755 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 4711 mSDsluCounter, 5819 mSDsCounter, 0 mSdLazyCounter, 5594 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4711 SdHoareTripleChecker+Valid, 6214 SdHoareTripleChecker+Invalid, 5704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 5594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:51,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4711 Valid, 6214 Invalid, 5704 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [110 Valid, 5594 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-13 13:18:51,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135494 states. [2024-11-13 13:18:52,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135494 to 29382. [2024-11-13 13:18:52,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29382 states, 29381 states have (on average 1.2761308328511622) internal successors, (37494), 29381 states have internal predecessors, (37494), 0 states have call successors, (0), 0 states 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 13:18:52,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29382 states to 29382 states and 37494 transitions. [2024-11-13 13:18:52,637 INFO L78 Accepts]: Start accepts. Automaton has 29382 states and 37494 transitions. Word has length 96 [2024-11-13 13:18:52,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:52,637 INFO L471 AbstractCegarLoop]: Abstraction has 29382 states and 37494 transitions. [2024-11-13 13:18:52,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 8.344827586206897) internal successors, (242), 28 states have internal predecessors, (242), 0 states have call successors, (0), 0 states 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 13:18:52,637 INFO L276 IsEmpty]: Start isEmpty. Operand 29382 states and 37494 transitions. [2024-11-13 13:18:52,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-13 13:18:52,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:52,647 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, 1, 1] [2024-11-13 13:18:52,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 13:18:52,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-13 13:18:52,849 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 13:18:52,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:52,850 INFO L85 PathProgramCache]: Analyzing trace with hash -715560704, now seen corresponding path program 1 times [2024-11-13 13:18:52,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:52,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527310879] [2024-11-13 13:18:52,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:52,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:53,129 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 13:18:53,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:53,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527310879] [2024-11-13 13:18:53,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527310879] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:18:53,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536957376] [2024-11-13 13:18:53,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:53,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:18:53,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:18:53,132 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:18:53,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:18:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:53,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 13:18:53,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:18:54,270 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 13:18:54,270 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:18:54,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536957376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:54,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:18:54,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 15 [2024-11-13 13:18:54,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403158566] [2024-11-13 13:18:54,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:54,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 13:18:54,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:54,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 13:18:54,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-13 13:18:54,272 INFO L87 Difference]: Start difference. First operand 29382 states and 37494 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 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 13:18:56,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:56,063 INFO L93 Difference]: Finished difference Result 92358 states and 117672 transitions. [2024-11-13 13:18:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-13 13:18:56,064 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 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 96 [2024-11-13 13:18:56,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:56,165 INFO L225 Difference]: With dead ends: 92358 [2024-11-13 13:18:56,165 INFO L226 Difference]: Without dead ends: 78394 [2024-11-13 13:18:56,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=295, Invalid=1187, Unknown=0, NotChecked=0, Total=1482 [2024-11-13 13:18:56,189 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 1296 mSDsluCounter, 2201 mSDsCounter, 0 mSdLazyCounter, 1959 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 2525 SdHoareTripleChecker+Invalid, 1976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:56,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1296 Valid, 2525 Invalid, 1976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1959 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 13:18:56,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78394 states. [2024-11-13 13:18:57,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78394 to 49699. [2024-11-13 13:18:57,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49699 states, 49698 states have (on average 1.2769125518129503) internal successors, (63460), 49698 states have internal predecessors, (63460), 0 states have call successors, (0), 0 states 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 13:18:57,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49699 states to 49699 states and 63460 transitions. [2024-11-13 13:18:57,218 INFO L78 Accepts]: Start accepts. Automaton has 49699 states and 63460 transitions. Word has length 96 [2024-11-13 13:18:57,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:57,218 INFO L471 AbstractCegarLoop]: Abstraction has 49699 states and 63460 transitions. [2024-11-13 13:18:57,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 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 13:18:57,218 INFO L276 IsEmpty]: Start isEmpty. Operand 49699 states and 63460 transitions. [2024-11-13 13:18:57,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-13 13:18:57,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:57,325 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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] [2024-11-13 13:18:57,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 13:18:57,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-13 13:18:57,529 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 13:18:57,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:57,530 INFO L85 PathProgramCache]: Analyzing trace with hash 239963458, now seen corresponding path program 1 times [2024-11-13 13:18:57,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:57,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174262250] [2024-11-13 13:18:57,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:57,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:57,634 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:57,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:57,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174262250] [2024-11-13 13:18:57,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174262250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:57,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:57,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:18:57,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19809959] [2024-11-13 13:18:57,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:57,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:18:57,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:57,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:18:57,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:18:57,637 INFO L87 Difference]: Start difference. First operand 49699 states and 63460 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 13:18:57,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:57,854 INFO L93 Difference]: Finished difference Result 97719 states and 124933 transitions. [2024-11-13 13:18:57,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:18:57,855 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 96 [2024-11-13 13:18:57,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:57,899 INFO L225 Difference]: With dead ends: 97719 [2024-11-13 13:18:57,899 INFO L226 Difference]: Without dead ends: 49701 [2024-11-13 13:18:57,924 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 13:18:57,924 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 121 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:57,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 464 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:18:57,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49701 states. [2024-11-13 13:18:58,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49701 to 48181. [2024-11-13 13:18:58,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48181 states, 48180 states have (on average 1.2584682440846824) internal successors, (60633), 48180 states have internal predecessors, (60633), 0 states have call successors, (0), 0 states 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 13:18:58,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48181 states to 48181 states and 60633 transitions. [2024-11-13 13:18:58,531 INFO L78 Accepts]: Start accepts. Automaton has 48181 states and 60633 transitions. Word has length 96 [2024-11-13 13:18:58,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:58,532 INFO L471 AbstractCegarLoop]: Abstraction has 48181 states and 60633 transitions. [2024-11-13 13:18:58,532 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 13:18:58,532 INFO L276 IsEmpty]: Start isEmpty. Operand 48181 states and 60633 transitions. [2024-11-13 13:18:58,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-13 13:18:58,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:58,541 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, 1, 1] [2024-11-13 13:18:58,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-13 13:18:58,541 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 13:18:58,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:58,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1700964892, now seen corresponding path program 1 times [2024-11-13 13:18:58,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:58,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889905751] [2024-11-13 13:18:58,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:58,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:59,025 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 13:18:59,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:59,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889905751] [2024-11-13 13:18:59,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889905751] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:18:59,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050960580] [2024-11-13 13:18:59,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:59,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:18:59,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:18:59,028 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:18:59,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 13:18:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:59,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 13:18:59,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:18:59,913 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 13:18:59,914 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:19:00,603 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 13:19:00,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050960580] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:19:00,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:19:00,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10, 10] total 22 [2024-11-13 13:19:00,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481516650] [2024-11-13 13:19:00,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:19:00,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 13:19:00,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:19:00,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 13:19:00,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2024-11-13 13:19:00,605 INFO L87 Difference]: Start difference. First operand 48181 states and 60633 transitions. Second operand has 22 states, 22 states have (on average 12.318181818181818) internal successors, (271), 22 states have internal predecessors, (271), 0 states have call successors, (0), 0 states 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 13:19:03,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:03,390 INFO L93 Difference]: Finished difference Result 172611 states and 217258 transitions. [2024-11-13 13:19:03,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-13 13:19:03,391 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 12.318181818181818) internal successors, (271), 22 states have internal predecessors, (271), 0 states have call successors, (0), 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 96 [2024-11-13 13:19:03,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:03,541 INFO L225 Difference]: With dead ends: 172611 [2024-11-13 13:19:03,541 INFO L226 Difference]: Without dead ends: 124669 [2024-11-13 13:19:03,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1110 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=832, Invalid=3458, Unknown=0, NotChecked=0, Total=4290 [2024-11-13 13:19:03,579 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 4569 mSDsluCounter, 2188 mSDsCounter, 0 mSdLazyCounter, 1928 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4569 SdHoareTripleChecker+Valid, 2443 SdHoareTripleChecker+Invalid, 2080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:03,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4569 Valid, 2443 Invalid, 2080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 1928 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 13:19:03,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124669 states. [2024-11-13 13:19:04,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124669 to 69775. [2024-11-13 13:19:04,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69775 states, 69774 states have (on average 1.227606271677129) internal successors, (85655), 69774 states have internal predecessors, (85655), 0 states have call successors, (0), 0 states 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 13:19:04,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69775 states to 69775 states and 85655 transitions. [2024-11-13 13:19:04,591 INFO L78 Accepts]: Start accepts. Automaton has 69775 states and 85655 transitions. Word has length 96 [2024-11-13 13:19:04,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:04,591 INFO L471 AbstractCegarLoop]: Abstraction has 69775 states and 85655 transitions. [2024-11-13 13:19:04,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 12.318181818181818) internal successors, (271), 22 states have internal predecessors, (271), 0 states have call successors, (0), 0 states 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 13:19:04,591 INFO L276 IsEmpty]: Start isEmpty. Operand 69775 states and 85655 transitions. [2024-11-13 13:19:04,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-13 13:19:04,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:04,598 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] [2024-11-13 13:19:04,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 13:19:04,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-13 13:19:04,799 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 13:19:04,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:04,799 INFO L85 PathProgramCache]: Analyzing trace with hash 678258623, now seen corresponding path program 1 times [2024-11-13 13:19:04,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:19:04,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446766855] [2024-11-13 13:19:04,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:04,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:19:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:04,880 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 13:19:04,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:19:04,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446766855] [2024-11-13 13:19:04,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446766855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:19:04,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:19:04,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:19:04,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615333946] [2024-11-13 13:19:04,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:19:04,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:19:04,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:19:04,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:19:04,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:19:04,882 INFO L87 Difference]: Start difference. First operand 69775 states and 85655 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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 13:19:05,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:05,335 INFO L93 Difference]: Finished difference Result 137809 states and 169343 transitions. [2024-11-13 13:19:05,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:19:05,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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 98 [2024-11-13 13:19:05,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:05,397 INFO L225 Difference]: With dead ends: 137809 [2024-11-13 13:19:05,397 INFO L226 Difference]: Without dead ends: 69257 [2024-11-13 13:19:05,425 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 13:19:05,426 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 189 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:05,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 261 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:19:05,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69257 states. [2024-11-13 13:19:06,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69257 to 69257. [2024-11-13 13:19:06,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69257 states, 69256 states have (on average 1.2159235300912556) internal successors, (84210), 69256 states have internal predecessors, (84210), 0 states have call successors, (0), 0 states 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 13:19:06,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69257 states to 69257 states and 84210 transitions. [2024-11-13 13:19:06,697 INFO L78 Accepts]: Start accepts. Automaton has 69257 states and 84210 transitions. Word has length 98 [2024-11-13 13:19:06,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:06,697 INFO L471 AbstractCegarLoop]: Abstraction has 69257 states and 84210 transitions. [2024-11-13 13:19:06,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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 13:19:06,697 INFO L276 IsEmpty]: Start isEmpty. Operand 69257 states and 84210 transitions. [2024-11-13 13:19:06,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-13 13:19:06,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:06,703 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] [2024-11-13 13:19:06,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-13 13:19:06,703 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 13:19:06,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:06,704 INFO L85 PathProgramCache]: Analyzing trace with hash -245080703, now seen corresponding path program 1 times [2024-11-13 13:19:06,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:19:06,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824141394] [2024-11-13 13:19:06,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:06,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:19:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:06,832 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 13:19:06,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:19:06,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824141394] [2024-11-13 13:19:06,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824141394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:19:06,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:19:06,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:19:06,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783635016] [2024-11-13 13:19:06,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:19:06,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:19:06,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:19:06,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:19:06,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:19:06,835 INFO L87 Difference]: Start difference. First operand 69257 states and 84210 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:19:07,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:07,358 INFO L93 Difference]: Finished difference Result 132818 states and 161440 transitions. [2024-11-13 13:19:07,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:19:07,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-13 13:19:07,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:07,426 INFO L225 Difference]: With dead ends: 132818 [2024-11-13 13:19:07,426 INFO L226 Difference]: Without dead ends: 64514 [2024-11-13 13:19:07,457 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 13:19:07,458 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 449 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:07,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 450 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:19:07,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64514 states. [2024-11-13 13:19:08,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64514 to 63591. [2024-11-13 13:19:08,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63591 states, 63590 states have (on average 1.1933480106935053) internal successors, (75885), 63590 states have internal predecessors, (75885), 0 states have call successors, (0), 0 states 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 13:19:08,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63591 states to 63591 states and 75885 transitions. [2024-11-13 13:19:08,491 INFO L78 Accepts]: Start accepts. Automaton has 63591 states and 75885 transitions. Word has length 98 [2024-11-13 13:19:08,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:08,491 INFO L471 AbstractCegarLoop]: Abstraction has 63591 states and 75885 transitions. [2024-11-13 13:19:08,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:19:08,491 INFO L276 IsEmpty]: Start isEmpty. Operand 63591 states and 75885 transitions. [2024-11-13 13:19:08,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-13 13:19:08,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:08,495 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] [2024-11-13 13:19:08,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-13 13:19:08,495 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 13:19:08,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:08,495 INFO L85 PathProgramCache]: Analyzing trace with hash -701589762, now seen corresponding path program 1 times [2024-11-13 13:19:08,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:19:08,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329319178] [2024-11-13 13:19:08,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:08,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:19:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:08,574 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 13:19:08,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:19:08,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329319178] [2024-11-13 13:19:08,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329319178] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:19:08,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754857793] [2024-11-13 13:19:08,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:08,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:19:08,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:19:08,578 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:19:08,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 13:19:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:09,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:19:09,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:19:09,289 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 13:19:09,290 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:19:09,440 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 13:19:09,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754857793] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:19:09,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:19:09,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-13 13:19:09,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191923254] [2024-11-13 13:19:09,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:19:09,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 13:19:09,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:19:09,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 13:19:09,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:19:09,443 INFO L87 Difference]: Start difference. First operand 63591 states and 75885 transitions. Second operand has 14 states, 14 states have (on average 18.714285714285715) internal successors, (262), 14 states have internal predecessors, (262), 0 states have call successors, (0), 0 states 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 13:19:10,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:10,362 INFO L93 Difference]: Finished difference Result 130322 states and 155017 transitions. [2024-11-13 13:19:10,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:19:10,366 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.714285714285715) internal successors, (262), 14 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-13 13:19:10,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:10,444 INFO L225 Difference]: With dead ends: 130322 [2024-11-13 13:19:10,444 INFO L226 Difference]: Without dead ends: 81189 [2024-11-13 13:19:10,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 188 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 13:19:10,472 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 1802 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1802 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:10,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1802 Valid, 1075 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:19:10,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81189 states. [2024-11-13 13:19:11,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81189 to 67775. [2024-11-13 13:19:11,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67775 states, 67774 states have (on average 1.1907073509015256) internal successors, (80699), 67774 states have internal predecessors, (80699), 0 states have call successors, (0), 0 states 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 13:19:11,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67775 states to 67775 states and 80699 transitions. [2024-11-13 13:19:11,431 INFO L78 Accepts]: Start accepts. Automaton has 67775 states and 80699 transitions. Word has length 98 [2024-11-13 13:19:11,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:11,431 INFO L471 AbstractCegarLoop]: Abstraction has 67775 states and 80699 transitions. [2024-11-13 13:19:11,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.714285714285715) internal successors, (262), 14 states have internal predecessors, (262), 0 states have call successors, (0), 0 states 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 13:19:11,431 INFO L276 IsEmpty]: Start isEmpty. Operand 67775 states and 80699 transitions. [2024-11-13 13:19:11,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-13 13:19:11,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:11,435 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] [2024-11-13 13:19:11,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 13:19:11,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-13 13:19:11,636 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 13:19:11,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:11,637 INFO L85 PathProgramCache]: Analyzing trace with hash -2113002831, now seen corresponding path program 1 times [2024-11-13 13:19:11,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:19:11,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690000414] [2024-11-13 13:19:11,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:11,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:19:11,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:11,752 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 13:19:11,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:19:11,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690000414] [2024-11-13 13:19:11,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690000414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:19:11,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:19:11,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:19:11,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131667099] [2024-11-13 13:19:11,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:19:11,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:19:11,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:19:11,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:19:11,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:19:11,754 INFO L87 Difference]: Start difference. First operand 67775 states and 80699 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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 13:19:12,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:12,036 INFO L93 Difference]: Finished difference Result 96127 states and 115057 transitions. [2024-11-13 13:19:12,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:19:12,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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 102 [2024-11-13 13:19:12,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:12,166 INFO L225 Difference]: With dead ends: 96127 [2024-11-13 13:19:12,166 INFO L226 Difference]: Without dead ends: 79809 [2024-11-13 13:19:12,191 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 13:19:12,193 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 558 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:12,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 743 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:19:12,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79809 states. [2024-11-13 13:19:12,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79809 to 77747. [2024-11-13 13:19:13,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77747 states, 77746 states have (on average 1.1865819463380753) internal successors, (92252), 77746 states have internal predecessors, (92252), 0 states have call successors, (0), 0 states 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 13:19:13,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77747 states to 77747 states and 92252 transitions. [2024-11-13 13:19:13,122 INFO L78 Accepts]: Start accepts. Automaton has 77747 states and 92252 transitions. Word has length 102 [2024-11-13 13:19:13,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:13,122 INFO L471 AbstractCegarLoop]: Abstraction has 77747 states and 92252 transitions. [2024-11-13 13:19:13,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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 13:19:13,122 INFO L276 IsEmpty]: Start isEmpty. Operand 77747 states and 92252 transitions. [2024-11-13 13:19:13,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-13 13:19:13,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:13,127 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] [2024-11-13 13:19:13,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-13 13:19:13,127 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 13:19:13,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:13,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1477417838, now seen corresponding path program 1 times [2024-11-13 13:19:13,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:19:13,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818994926] [2024-11-13 13:19:13,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:13,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:19:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:13,519 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 13:19:13,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:19:13,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818994926] [2024-11-13 13:19:13,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818994926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:19:13,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:19:13,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:19:13,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293177295] [2024-11-13 13:19:13,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:19:13,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:19:13,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:19:13,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:19:13,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:19:13,521 INFO L87 Difference]: Start difference. First operand 77747 states and 92252 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 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 13:19:13,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:13,727 INFO L93 Difference]: Finished difference Result 93211 states and 110944 transitions. [2024-11-13 13:19:13,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:19:13,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2024-11-13 13:19:13,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:13,799 INFO L225 Difference]: With dead ends: 93211 [2024-11-13 13:19:13,799 INFO L226 Difference]: Without dead ends: 85620 [2024-11-13 13:19:13,816 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 13:19:13,817 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 557 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:13,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 740 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:19:13,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85620 states. [2024-11-13 13:19:14,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85620 to 83558. [2024-11-13 13:19:14,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83558 states, 83557 states have (on average 1.1852866905226371) internal successors, (99039), 83557 states have internal predecessors, (99039), 0 states have call successors, (0), 0 states 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 13:19:14,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83558 states to 83558 states and 99039 transitions. [2024-11-13 13:19:14,840 INFO L78 Accepts]: Start accepts. Automaton has 83558 states and 99039 transitions. Word has length 102 [2024-11-13 13:19:14,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:14,841 INFO L471 AbstractCegarLoop]: Abstraction has 83558 states and 99039 transitions. [2024-11-13 13:19:14,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 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 13:19:14,841 INFO L276 IsEmpty]: Start isEmpty. Operand 83558 states and 99039 transitions. [2024-11-13 13:19:14,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 13:19:14,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:14,848 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 13:19:14,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-13 13:19:14,849 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 13:19:14,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:14,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1197851110, now seen corresponding path program 1 times [2024-11-13 13:19:14,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:19:14,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754598833] [2024-11-13 13:19:14,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:14,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:19:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:15,001 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 13:19:15,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:19:15,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754598833] [2024-11-13 13:19:15,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754598833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:19:15,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:19:15,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:19:15,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198126127] [2024-11-13 13:19:15,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:19:15,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:19:15,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:19:15,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:19:15,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:19:15,003 INFO L87 Difference]: Start difference. First operand 83558 states and 99039 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:19:15,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:15,844 INFO L93 Difference]: Finished difference Result 115107 states and 135303 transitions. [2024-11-13 13:19:15,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:19:15,844 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-13 13:19:15,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:15,917 INFO L225 Difference]: With dead ends: 115107 [2024-11-13 13:19:15,917 INFO L226 Difference]: Without dead ends: 97198 [2024-11-13 13:19:15,928 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 13:19:15,929 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 1206 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:15,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 465 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 13:19:15,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97198 states. [2024-11-13 13:19:16,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97198 to 83608. [2024-11-13 13:19:16,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83608 states, 83607 states have (on average 1.1852476467281448) internal successors, (99095), 83607 states have internal predecessors, (99095), 0 states have call successors, (0), 0 states 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 13:19:16,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83608 states to 83608 states and 99095 transitions. [2024-11-13 13:19:16,861 INFO L78 Accepts]: Start accepts. Automaton has 83608 states and 99095 transitions. Word has length 105 [2024-11-13 13:19:16,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:16,862 INFO L471 AbstractCegarLoop]: Abstraction has 83608 states and 99095 transitions. [2024-11-13 13:19:16,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:19:16,862 INFO L276 IsEmpty]: Start isEmpty. Operand 83608 states and 99095 transitions. [2024-11-13 13:19:16,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 13:19:16,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:16,870 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 13:19:16,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-13 13:19:16,870 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 13:19:16,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:16,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1132256314, now seen corresponding path program 1 times [2024-11-13 13:19:16,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:19:16,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171804827] [2024-11-13 13:19:16,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:16,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:19:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:16,949 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 13:19:16,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:19:16,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171804827] [2024-11-13 13:19:16,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171804827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:19:16,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:19:16,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:19:16,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999533498] [2024-11-13 13:19:16,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:19:16,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:19:16,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:19:16,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:19:16,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:19:16,951 INFO L87 Difference]: Start difference. First operand 83608 states and 99095 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 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 13:19:17,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:17,361 INFO L93 Difference]: Finished difference Result 161199 states and 191805 transitions. [2024-11-13 13:19:17,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:19:17,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 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 13:19:17,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:17,465 INFO L225 Difference]: With dead ends: 161199 [2024-11-13 13:19:17,465 INFO L226 Difference]: Without dead ends: 114747 [2024-11-13 13:19:17,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:19:17,496 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 169 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:17,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 496 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:19:17,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114747 states. [2024-11-13 13:19:18,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114747 to 96983. [2024-11-13 13:19:18,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96983 states, 96982 states have (on average 1.184828112433235) internal successors, (114907), 96982 states have internal predecessors, (114907), 0 states have call successors, (0), 0 states 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 13:19:18,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96983 states to 96983 states and 114907 transitions. [2024-11-13 13:19:18,986 INFO L78 Accepts]: Start accepts. Automaton has 96983 states and 114907 transitions. Word has length 107 [2024-11-13 13:19:18,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:18,987 INFO L471 AbstractCegarLoop]: Abstraction has 96983 states and 114907 transitions. [2024-11-13 13:19:18,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 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 13:19:18,987 INFO L276 IsEmpty]: Start isEmpty. Operand 96983 states and 114907 transitions. [2024-11-13 13:19:19,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 13:19:19,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:19,001 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 13:19:19,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-13 13:19:19,001 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 13:19:19,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:19,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1725545089, now seen corresponding path program 1 times [2024-11-13 13:19:19,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:19:19,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878208979] [2024-11-13 13:19:19,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:19,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:19:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:19,423 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 13:19:19,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:19:19,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878208979] [2024-11-13 13:19:19,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878208979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:19:19,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:19:19,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 13:19:19,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644718210] [2024-11-13 13:19:19,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:19:19,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:19:19,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:19:19,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:19:19,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:19:19,425 INFO L87 Difference]: Start difference. First operand 96983 states and 114907 transitions. Second operand has 10 states, 10 states have (on average 10.7) internal successors, (107), 9 states have internal predecessors, (107), 0 states have call successors, (0), 0 states 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 13:19:20,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:20,457 INFO L93 Difference]: Finished difference Result 170537 states and 202841 transitions. [2024-11-13 13:19:20,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 13:19:20,457 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 9 states have internal predecessors, (107), 0 states have call successors, (0), 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 13:19:20,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:20,588 INFO L225 Difference]: With dead ends: 170537 [2024-11-13 13:19:20,588 INFO L226 Difference]: Without dead ends: 124360 [2024-11-13 13:19:20,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2024-11-13 13:19:20,624 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 1253 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:20,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1253 Valid, 951 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:19:20,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124360 states. [2024-11-13 13:19:21,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124360 to 91107. [2024-11-13 13:19:22,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91107 states, 91106 states have (on average 1.1834237042565803) internal successors, (107817), 91106 states have internal predecessors, (107817), 0 states have call successors, (0), 0 states 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 13:19:22,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91107 states to 91107 states and 107817 transitions. [2024-11-13 13:19:22,191 INFO L78 Accepts]: Start accepts. Automaton has 91107 states and 107817 transitions. Word has length 107 [2024-11-13 13:19:22,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:22,191 INFO L471 AbstractCegarLoop]: Abstraction has 91107 states and 107817 transitions. [2024-11-13 13:19:22,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 9 states have internal predecessors, (107), 0 states have call successors, (0), 0 states 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 13:19:22,192 INFO L276 IsEmpty]: Start isEmpty. Operand 91107 states and 107817 transitions. [2024-11-13 13:19:22,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-13 13:19:22,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:22,199 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 13:19:22,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-13 13:19:22,199 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 13:19:22,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:22,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1802251620, now seen corresponding path program 1 times [2024-11-13 13:19:22,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:19:22,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534789475] [2024-11-13 13:19:22,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:22,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:19:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:22,254 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 13:19:22,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:19:22,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534789475] [2024-11-13 13:19:22,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534789475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:19:22,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:19:22,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:19:22,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316475474] [2024-11-13 13:19:22,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:19:22,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:19:22,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:19:22,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:19:22,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:19:22,256 INFO L87 Difference]: Start difference. First operand 91107 states and 107817 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:19:22,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:22,495 INFO L93 Difference]: Finished difference Result 116874 states and 138344 transitions. [2024-11-13 13:19:22,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:19:22,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-11-13 13:19:22,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:22,568 INFO L225 Difference]: With dead ends: 116874 [2024-11-13 13:19:22,568 INFO L226 Difference]: Without dead ends: 85956 [2024-11-13 13:19:22,590 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 13:19:22,590 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 188 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:22,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 345 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:19:22,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85956 states. [2024-11-13 13:19:23,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85956 to 85862. [2024-11-13 13:19:23,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85862 states, 85861 states have (on average 1.180757270472042) internal successors, (101381), 85861 states have internal predecessors, (101381), 0 states have call successors, (0), 0 states 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 13:19:23,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85862 states to 85862 states and 101381 transitions. [2024-11-13 13:19:23,484 INFO L78 Accepts]: Start accepts. Automaton has 85862 states and 101381 transitions. Word has length 108 [2024-11-13 13:19:23,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:23,484 INFO L471 AbstractCegarLoop]: Abstraction has 85862 states and 101381 transitions. [2024-11-13 13:19:23,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:19:23,484 INFO L276 IsEmpty]: Start isEmpty. Operand 85862 states and 101381 transitions. [2024-11-13 13:19:23,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-13 13:19:23,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:23,488 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 13:19:23,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-13 13:19:23,488 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 13:19:23,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:23,489 INFO L85 PathProgramCache]: Analyzing trace with hash 587799882, now seen corresponding path program 1 times [2024-11-13 13:19:23,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:19:23,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121704169] [2024-11-13 13:19:23,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:23,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:19:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:24,120 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 13:19:24,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:19:24,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121704169] [2024-11-13 13:19:24,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121704169] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:19:24,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884922430] [2024-11-13 13:19:24,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:24,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:19:24,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:19:24,123 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:19:24,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 13:19:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:24,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 13:19:24,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:19:25,861 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 13:19:25,861 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:19:26,629 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 13:19:26,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884922430] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:19:26,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:19:26,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 11] total 32 [2024-11-13 13:19:26,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017934157] [2024-11-13 13:19:26,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:19:26,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-13 13:19:26,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:19:26,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-13 13:19:26,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=871, Unknown=0, NotChecked=0, Total=992 [2024-11-13 13:19:26,632 INFO L87 Difference]: Start difference. First operand 85862 states and 101381 transitions. Second operand has 32 states, 32 states have (on average 8.625) internal successors, (276), 32 states have internal predecessors, (276), 0 states have call successors, (0), 0 states 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 13:19:28,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:28,629 INFO L93 Difference]: Finished difference Result 113370 states and 133783 transitions. [2024-11-13 13:19:28,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-13 13:19:28,630 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 8.625) internal successors, (276), 32 states have internal predecessors, (276), 0 states have call successors, (0), 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 13:19:28,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:28,723 INFO L225 Difference]: With dead ends: 113370 [2024-11-13 13:19:28,723 INFO L226 Difference]: Without dead ends: 92620 [2024-11-13 13:19:28,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 200 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=763, Invalid=2777, Unknown=0, NotChecked=0, Total=3540 [2024-11-13 13:19:28,747 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 2725 mSDsluCounter, 4454 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2725 SdHoareTripleChecker+Valid, 4778 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:28,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2725 Valid, 4778 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 13:19:29,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92620 states. [2024-11-13 13:19:29,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92620 to 85990. [2024-11-13 13:19:29,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85990 states, 85989 states have (on average 1.1789996394887718) internal successors, (101381), 85989 states have internal predecessors, (101381), 0 states have call successors, (0), 0 states 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 13:19:29,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85990 states to 85990 states and 101381 transitions. [2024-11-13 13:19:29,730 INFO L78 Accepts]: Start accepts. Automaton has 85990 states and 101381 transitions. Word has length 108 [2024-11-13 13:19:29,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:29,731 INFO L471 AbstractCegarLoop]: Abstraction has 85990 states and 101381 transitions. [2024-11-13 13:19:29,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 8.625) internal successors, (276), 32 states have internal predecessors, (276), 0 states have call successors, (0), 0 states 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 13:19:29,731 INFO L276 IsEmpty]: Start isEmpty. Operand 85990 states and 101381 transitions. [2024-11-13 13:19:29,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-13 13:19:29,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:29,738 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, 1] [2024-11-13 13:19:29,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-13 13:19:29,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-13 13:19:29,938 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 13:19:29,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:29,940 INFO L85 PathProgramCache]: Analyzing trace with hash -17084980, now seen corresponding path program 1 times [2024-11-13 13:19:29,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:19:29,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115306342] [2024-11-13 13:19:29,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:29,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:19:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:30,213 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 13:19:30,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:19:30,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115306342] [2024-11-13 13:19:30,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115306342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:19:30,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:19:30,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:19:30,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435726725] [2024-11-13 13:19:30,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:19:30,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:19:30,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:19:30,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:19:30,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:19:30,214 INFO L87 Difference]: Start difference. First operand 85990 states and 101381 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states 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 13:19:30,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:30,587 INFO L93 Difference]: Finished difference Result 145376 states and 170890 transitions. [2024-11-13 13:19:30,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:19:30,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 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 109 [2024-11-13 13:19:30,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:30,698 INFO L225 Difference]: With dead ends: 145376 [2024-11-13 13:19:30,698 INFO L226 Difference]: Without dead ends: 121428 [2024-11-13 13:19:30,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:19:30,726 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 129 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:30,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 530 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:19:30,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121428 states. [2024-11-13 13:19:31,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121428 to 96505. [2024-11-13 13:19:31,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96505 states, 96504 states have (on average 1.178800878720053) internal successors, (113759), 96504 states have internal predecessors, (113759), 0 states have call successors, (0), 0 states 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 13:19:31,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96505 states to 96505 states and 113759 transitions. [2024-11-13 13:19:31,823 INFO L78 Accepts]: Start accepts. Automaton has 96505 states and 113759 transitions. Word has length 109 [2024-11-13 13:19:31,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:31,823 INFO L471 AbstractCegarLoop]: Abstraction has 96505 states and 113759 transitions. [2024-11-13 13:19:31,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states 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 13:19:31,823 INFO L276 IsEmpty]: Start isEmpty. Operand 96505 states and 113759 transitions. [2024-11-13 13:19:31,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-13 13:19:31,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:31,827 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, 1] [2024-11-13 13:19:31,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-13 13:19:31,828 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 13:19:31,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:31,828 INFO L85 PathProgramCache]: Analyzing trace with hash 619476935, now seen corresponding path program 1 times [2024-11-13 13:19:31,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:19:31,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326462438] [2024-11-13 13:19:31,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:31,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:19:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:32,484 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 13:19:32,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:19:32,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326462438] [2024-11-13 13:19:32,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326462438] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:19:32,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883662254] [2024-11-13 13:19:32,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:32,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:19:32,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:19:32,487 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:19:32,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 13:19:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:32,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 13:19:32,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:19:34,035 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 13:19:34,035 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:19:34,756 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 13:19:34,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883662254] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:19:34,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:19:34,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 10] total 34 [2024-11-13 13:19:34,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969499774] [2024-11-13 13:19:34,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:19:34,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-13 13:19:34,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:19:34,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-13 13:19:34,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1032, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 13:19:34,758 INFO L87 Difference]: Start difference. First operand 96505 states and 113759 transitions. Second operand has 34 states, 34 states have (on average 9.029411764705882) internal successors, (307), 34 states have internal predecessors, (307), 0 states have call successors, (0), 0 states 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 13:20:01,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:01,414 INFO L93 Difference]: Finished difference Result 287403 states and 334126 transitions. [2024-11-13 13:20:01,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 233 states. [2024-11-13 13:20:01,415 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 9.029411764705882) internal successors, (307), 34 states have internal predecessors, (307), 0 states have call successors, (0), 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 109 [2024-11-13 13:20:01,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:01,691 INFO L225 Difference]: With dead ends: 287403 [2024-11-13 13:20:01,692 INFO L226 Difference]: Without dead ends: 274717 [2024-11-13 13:20:01,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 263 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26850 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=9692, Invalid=60268, Unknown=0, NotChecked=0, Total=69960 [2024-11-13 13:20:01,746 INFO L432 NwaCegarLoop]: 368 mSDtfsCounter, 10385 mSDsluCounter, 6542 mSDsCounter, 0 mSdLazyCounter, 7061 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10385 SdHoareTripleChecker+Valid, 6910 SdHoareTripleChecker+Invalid, 7240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 7061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:01,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10385 Valid, 6910 Invalid, 7240 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [179 Valid, 7061 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-13 13:20:01,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274717 states. [2024-11-13 13:20:03,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274717 to 99721. [2024-11-13 13:20:03,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99721 states, 99720 states have (on average 1.1784296028880867) internal successors, (117513), 99720 states have internal predecessors, (117513), 0 states have call successors, (0), 0 states 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 13:20:03,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99721 states to 99721 states and 117513 transitions. [2024-11-13 13:20:03,774 INFO L78 Accepts]: Start accepts. Automaton has 99721 states and 117513 transitions. Word has length 109 [2024-11-13 13:20:03,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:03,774 INFO L471 AbstractCegarLoop]: Abstraction has 99721 states and 117513 transitions. [2024-11-13 13:20:03,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 9.029411764705882) internal successors, (307), 34 states have internal predecessors, (307), 0 states have call successors, (0), 0 states 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 13:20:03,775 INFO L276 IsEmpty]: Start isEmpty. Operand 99721 states and 117513 transitions. [2024-11-13 13:20:03,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-13 13:20:03,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:03,778 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, 1] [2024-11-13 13:20:03,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 13:20:03,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fca14aa-ac3e-45ad-992f-ffc691825331/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-13 13:20:03,979 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-13 13:20:03,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:03,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1277608228, now seen corresponding path program 1 times [2024-11-13 13:20:03,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:03,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846486902] [2024-11-13 13:20:03,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:03,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:04,062 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 13:20:04,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:04,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846486902] [2024-11-13 13:20:04,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846486902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:04,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:04,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:20:04,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864409209] [2024-11-13 13:20:04,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:04,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:20:04,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:04,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:20:04,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:20:04,065 INFO L87 Difference]: Start difference. First operand 99721 states and 117513 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 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 13:20:04,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:04,579 INFO L93 Difference]: Finished difference Result 167250 states and 196822 transitions. [2024-11-13 13:20:04,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:20:04,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 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 109 [2024-11-13 13:20:04,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:04,709 INFO L225 Difference]: With dead ends: 167250 [2024-11-13 13:20:04,709 INFO L226 Difference]: Without dead ends: 139735 [2024-11-13 13:20:04,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:20:04,740 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 144 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:04,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 514 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:20:04,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139735 states.