./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.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_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/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_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/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_a49db177-57cf-4e4c-a3a2-27a468f7c84a/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 229b91e3de975681c9279ff5877f98d2e4ca4fb1a04c4bc6189640654fad2f3e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:19:59,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:19:59,832 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:19:59,846 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:19:59,846 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:19:59,892 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:19:59,895 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:19:59,895 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:19:59,896 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:19:59,896 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:19:59,897 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:19:59,897 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:19:59,898 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:19:59,898 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:19:59,898 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:19:59,898 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:19:59,899 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:19:59,899 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:19:59,899 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:19:59,899 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:19:59,900 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:19:59,900 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:19:59,900 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:19:59,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:19:59,900 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:19:59,900 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:19:59,900 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:19:59,900 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:19:59,900 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:19:59,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:19:59,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:19:59,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:19:59,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:19:59,901 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:19:59,901 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:19:59,901 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:19:59,901 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:19:59,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:19:59,901 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:19:59,902 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:19:59,902 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:19:59,902 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:19:59,902 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_a49db177-57cf-4e4c-a3a2-27a468f7c84a/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 -> 229b91e3de975681c9279ff5877f98d2e4ca4fb1a04c4bc6189640654fad2f3e [2024-11-13 13:20:00,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:20:00,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:20:00,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:20:00,376 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:20:00,377 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:20:00,378 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c Unable to find full path for "g++" [2024-11-13 13:20:02,732 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:20:03,473 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:20:03,474 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c [2024-11-13 13:20:03,518 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/data/a6e8e7ef3/23bbdbc706634d2c9eeadad00dd6adf2/FLAGb454c6335 [2024-11-13 13:20:03,538 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/data/a6e8e7ef3/23bbdbc706634d2c9eeadad00dd6adf2 [2024-11-13 13:20:03,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:20:03,543 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:20:03,545 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:20:03,546 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:20:03,551 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:20:03,553 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:20:03" (1/1) ... [2024-11-13 13:20:03,555 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad7100a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:03, skipping insertion in model container [2024-11-13 13:20:03,557 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:20:03" (1/1) ... [2024-11-13 13:20:03,719 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:20:04,179 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_a49db177-57cf-4e4c-a3a2-27a468f7c84a/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c[11640,11653] [2024-11-13 13:20:04,269 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_a49db177-57cf-4e4c-a3a2-27a468f7c84a/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c[18930,18943] [2024-11-13 13:20:05,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:20:05,305 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:20:05,372 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_a49db177-57cf-4e4c-a3a2-27a468f7c84a/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c[11640,11653] [2024-11-13 13:20:05,386 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_a49db177-57cf-4e4c-a3a2-27a468f7c84a/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c[18930,18943] [2024-11-13 13:20:06,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:20:06,087 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:20:06,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:06 WrapperNode [2024-11-13 13:20:06,088 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:20:06,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:20:06,089 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:20:06,089 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:20:06,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:06" (1/1) ... [2024-11-13 13:20:06,168 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:06" (1/1) ... [2024-11-13 13:20:06,745 INFO L138 Inliner]: procedures = 36, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5097 [2024-11-13 13:20:06,747 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:20:06,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:20:06,748 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:20:06,748 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:20:06,772 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:06" (1/1) ... [2024-11-13 13:20:06,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:06" (1/1) ... [2024-11-13 13:20:06,851 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:06" (1/1) ... [2024-11-13 13:20:07,275 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 13:20:07,275 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:06" (1/1) ... [2024-11-13 13:20:07,275 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:06" (1/1) ... [2024-11-13 13:20:07,458 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:06" (1/1) ... [2024-11-13 13:20:07,507 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:06" (1/1) ... [2024-11-13 13:20:07,539 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:06" (1/1) ... [2024-11-13 13:20:07,554 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:06" (1/1) ... [2024-11-13 13:20:07,645 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:20:07,647 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:20:07,648 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:20:07,648 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:20:07,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:06" (1/1) ... [2024-11-13 13:20:07,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:20:07,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:07,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:07,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:20:07,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:20:07,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:20:07,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:20:07,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:20:07,941 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:20:07,945 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:20:15,771 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-11-13 13:20:15,771 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:20:15,824 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:20:15,831 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 13:20:15,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:20:15 BoogieIcfgContainer [2024-11-13 13:20:15,831 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:20:15,839 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:20:15,839 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:20:15,850 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:20:15,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:20:03" (1/3) ... [2024-11-13 13:20:15,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de21a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:20:15, skipping insertion in model container [2024-11-13 13:20:15,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:06" (2/3) ... [2024-11-13 13:20:15,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de21a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:20:15, skipping insertion in model container [2024-11-13 13:20:15,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:20:15" (3/3) ... [2024-11-13 13:20:15,855 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c [2024-11-13 13:20:15,879 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:20:15,884 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label02.c that has 1 procedures, 899 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-13 13:20:16,019 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:20:16,115 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;@1a147383, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:20:16,115 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 13:20:16,131 INFO L276 IsEmpty]: Start isEmpty. Operand has 899 states, 896 states have (on average 1.9051339285714286) internal successors, (1707), 898 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:16,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 13:20:16,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:16,142 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] [2024-11-13 13:20:16,143 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:16,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:16,151 INFO L85 PathProgramCache]: Analyzing trace with hash -984856779, now seen corresponding path program 1 times [2024-11-13 13:20:16,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:16,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123753204] [2024-11-13 13:20:16,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:16,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:16,561 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 13:20:16,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:16,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123753204] [2024-11-13 13:20:16,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123753204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:16,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:16,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:20:16,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753804935] [2024-11-13 13:20:16,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:16,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 13:20:16,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:16,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 13:20:16,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:20:16,608 INFO L87 Difference]: Start difference. First operand has 899 states, 896 states have (on average 1.9051339285714286) internal successors, (1707), 898 states have internal predecessors, (1707), 0 states have call successors, (0), 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 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:16,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:16,726 INFO L93 Difference]: Finished difference Result 1761 states and 3344 transitions. [2024-11-13 13:20:16,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 13:20:16,729 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2024-11-13 13:20:16,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:16,750 INFO L225 Difference]: With dead ends: 1761 [2024-11-13 13:20:16,750 INFO L226 Difference]: Without dead ends: 833 [2024-11-13 13:20:16,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:20:16,765 INFO L432 NwaCegarLoop]: 1641 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:16,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:20:16,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2024-11-13 13:20:16,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 833. [2024-11-13 13:20:16,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 831 states have (on average 1.8941034897713598) internal successors, (1574), 832 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:16,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1574 transitions. [2024-11-13 13:20:16,903 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1574 transitions. Word has length 24 [2024-11-13 13:20:16,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:16,903 INFO L471 AbstractCegarLoop]: Abstraction has 833 states and 1574 transitions. [2024-11-13 13:20:16,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:16,904 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1574 transitions. [2024-11-13 13:20:16,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 13:20:16,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:16,906 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] [2024-11-13 13:20:16,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:20:16,910 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:16,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:16,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1315965811, now seen corresponding path program 1 times [2024-11-13 13:20:16,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:16,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974107209] [2024-11-13 13:20:16,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:16,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:17,286 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 13:20:17,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:17,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974107209] [2024-11-13 13:20:17,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974107209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:17,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:17,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:20:17,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666345029] [2024-11-13 13:20:17,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:17,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:20:17,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:17,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:20:17,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:20:17,290 INFO L87 Difference]: Start difference. First operand 833 states and 1574 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:17,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:17,475 INFO L93 Difference]: Finished difference Result 879 states and 1645 transitions. [2024-11-13 13:20:17,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:20:17,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2024-11-13 13:20:17,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:17,482 INFO L225 Difference]: With dead ends: 879 [2024-11-13 13:20:17,483 INFO L226 Difference]: Without dead ends: 833 [2024-11-13 13:20:17,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:20:17,486 INFO L432 NwaCegarLoop]: 1572 mSDtfsCounter, 0 mSDsluCounter, 4680 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6252 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:17,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6252 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:20:17,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2024-11-13 13:20:17,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 833. [2024-11-13 13:20:17,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 831 states have (on average 1.8567990373044525) internal successors, (1543), 832 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:17,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1543 transitions. [2024-11-13 13:20:17,535 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1543 transitions. Word has length 24 [2024-11-13 13:20:17,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:17,535 INFO L471 AbstractCegarLoop]: Abstraction has 833 states and 1543 transitions. [2024-11-13 13:20:17,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:17,536 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1543 transitions. [2024-11-13 13:20:17,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-13 13:20:17,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:17,542 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 13:20:17,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:20:17,542 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:17,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:17,543 INFO L85 PathProgramCache]: Analyzing trace with hash -704160886, now seen corresponding path program 1 times [2024-11-13 13:20:17,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:17,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445469025] [2024-11-13 13:20:17,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:17,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:18,000 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 13:20:18,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:18,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445469025] [2024-11-13 13:20:18,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445469025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:18,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:18,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:20:18,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317665757] [2024-11-13 13:20:18,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:18,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:20:18,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:18,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:20:18,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:20:18,004 INFO L87 Difference]: Start difference. First operand 833 states and 1543 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:18,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:18,445 INFO L93 Difference]: Finished difference Result 1253 states and 2213 transitions. [2024-11-13 13:20:18,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 13:20:18,446 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-13 13:20:18,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:18,455 INFO L225 Difference]: With dead ends: 1253 [2024-11-13 13:20:18,456 INFO L226 Difference]: Without dead ends: 1211 [2024-11-13 13:20:18,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:20:18,460 INFO L432 NwaCegarLoop]: 1539 mSDtfsCounter, 7953 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7953 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:18,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7953 Valid, 2746 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:20:18,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2024-11-13 13:20:18,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 873. [2024-11-13 13:20:18,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 871 states have (on average 1.8450057405281286) internal successors, (1607), 872 states have internal predecessors, (1607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:18,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1607 transitions. [2024-11-13 13:20:18,511 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1607 transitions. Word has length 54 [2024-11-13 13:20:18,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:18,514 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1607 transitions. [2024-11-13 13:20:18,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:18,515 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1607 transitions. [2024-11-13 13:20:18,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-13 13:20:18,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:18,518 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 13:20:18,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:20:18,520 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:18,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:18,521 INFO L85 PathProgramCache]: Analyzing trace with hash 490524506, now seen corresponding path program 1 times [2024-11-13 13:20:18,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:18,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696605069] [2024-11-13 13:20:18,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:18,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:18,680 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 13:20:18,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:18,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696605069] [2024-11-13 13:20:18,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696605069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:18,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:18,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:20:18,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689787378] [2024-11-13 13:20:18,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:18,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:18,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:18,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:18,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:18,683 INFO L87 Difference]: Start difference. First operand 873 states and 1607 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 13:20:18,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:18,740 INFO L93 Difference]: Finished difference Result 1026 states and 1850 transitions. [2024-11-13 13:20:18,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:18,740 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 13:20:18,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:18,746 INFO L225 Difference]: With dead ends: 1026 [2024-11-13 13:20:18,746 INFO L226 Difference]: Without dead ends: 944 [2024-11-13 13:20:18,747 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 13:20:18,748 INFO L432 NwaCegarLoop]: 1541 mSDtfsCounter, 1482 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:18,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1603 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:20:18,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2024-11-13 13:20:18,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 942. [2024-11-13 13:20:18,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 940 states have (on average 1.824468085106383) internal successors, (1715), 941 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:18,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1715 transitions. [2024-11-13 13:20:18,792 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1715 transitions. Word has length 56 [2024-11-13 13:20:18,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:18,794 INFO L471 AbstractCegarLoop]: Abstraction has 942 states and 1715 transitions. [2024-11-13 13:20:18,794 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 13:20:18,794 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1715 transitions. [2024-11-13 13:20:18,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-13 13:20:18,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:18,800 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 13:20:18,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:20:18,801 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:18,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:18,801 INFO L85 PathProgramCache]: Analyzing trace with hash 557018018, now seen corresponding path program 1 times [2024-11-13 13:20:18,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:18,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859256402] [2024-11-13 13:20:18,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:18,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:19,559 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 13:20:19,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:19,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859256402] [2024-11-13 13:20:19,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859256402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:19,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:19,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:20:19,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175777031] [2024-11-13 13:20:19,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:19,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:20:19,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:19,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:20:19,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:20:19,568 INFO L87 Difference]: Start difference. First operand 942 states and 1715 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 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 13:20:20,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:20,015 INFO L93 Difference]: Finished difference Result 1095 states and 1955 transitions. [2024-11-13 13:20:20,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:20:20,016 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 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 13:20:20,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:20,023 INFO L225 Difference]: With dead ends: 1095 [2024-11-13 13:20:20,023 INFO L226 Difference]: Without dead ends: 944 [2024-11-13 13:20:20,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:20:20,028 INFO L432 NwaCegarLoop]: 1536 mSDtfsCounter, 2994 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2994 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:20,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2994 Valid, 1795 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:20:20,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2024-11-13 13:20:20,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 942. [2024-11-13 13:20:20,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 940 states have (on average 1.8223404255319149) internal successors, (1713), 941 states have internal predecessors, (1713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:20,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1713 transitions. [2024-11-13 13:20:20,070 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1713 transitions. Word has length 56 [2024-11-13 13:20:20,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:20,071 INFO L471 AbstractCegarLoop]: Abstraction has 942 states and 1713 transitions. [2024-11-13 13:20:20,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 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 13:20:20,071 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1713 transitions. [2024-11-13 13:20:20,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-13 13:20:20,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:20,076 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 13:20:20,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:20:20,076 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:20,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:20,077 INFO L85 PathProgramCache]: Analyzing trace with hash -327033706, now seen corresponding path program 1 times [2024-11-13 13:20:20,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:20,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630100542] [2024-11-13 13:20:20,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:20,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:20,587 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 13:20:20,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:20,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630100542] [2024-11-13 13:20:20,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630100542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:20,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:20,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 13:20:20,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315163053] [2024-11-13 13:20:20,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:20,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:20:20,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:20,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:20:20,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:20:20,590 INFO L87 Difference]: Start difference. First operand 942 states and 1713 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 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 13:20:20,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:20,709 INFO L93 Difference]: Finished difference Result 950 states and 1722 transitions. [2024-11-13 13:20:20,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:20:20,714 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 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 13:20:20,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:20,723 INFO L225 Difference]: With dead ends: 950 [2024-11-13 13:20:20,723 INFO L226 Difference]: Without dead ends: 948 [2024-11-13 13:20:20,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:20:20,725 INFO L432 NwaCegarLoop]: 1537 mSDtfsCounter, 0 mSDsluCounter, 9209 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10746 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:20,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10746 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:20:20,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-13 13:20:20,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-11-13 13:20:20,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 946 states have (on average 1.8160676532769555) internal successors, (1718), 947 states have internal predecessors, (1718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:20,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1718 transitions. [2024-11-13 13:20:20,769 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1718 transitions. Word has length 57 [2024-11-13 13:20:20,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:20,769 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1718 transitions. [2024-11-13 13:20:20,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 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 13:20:20,770 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1718 transitions. [2024-11-13 13:20:20,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 13:20:20,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:20,771 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 13:20:20,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:20:20,771 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:20,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:20,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1174663678, now seen corresponding path program 1 times [2024-11-13 13:20:20,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:20,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437575104] [2024-11-13 13:20:20,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:20,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:20,896 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 13:20:20,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:20,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437575104] [2024-11-13 13:20:20,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437575104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:20,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:20,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:20:20,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851699243] [2024-11-13 13:20:20,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:20,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:20,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:20,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:20,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:20,901 INFO L87 Difference]: Start difference. First operand 948 states and 1718 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 13:20:20,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:20,953 INFO L93 Difference]: Finished difference Result 1118 states and 1979 transitions. [2024-11-13 13:20:20,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:20,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 13:20:20,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:20,961 INFO L225 Difference]: With dead ends: 1118 [2024-11-13 13:20:20,962 INFO L226 Difference]: Without dead ends: 1030 [2024-11-13 13:20:20,963 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 13:20:20,964 INFO L432 NwaCegarLoop]: 1595 mSDtfsCounter, 1496 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:20,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1663 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:20:20,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2024-11-13 13:20:20,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1028. [2024-11-13 13:20:20,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 1026 states have (on average 1.7923976608187135) internal successors, (1839), 1027 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:21,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1839 transitions. [2024-11-13 13:20:21,006 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1839 transitions. Word has length 58 [2024-11-13 13:20:21,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:21,006 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1839 transitions. [2024-11-13 13:20:21,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 13:20:21,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1839 transitions. [2024-11-13 13:20:21,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 13:20:21,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:21,007 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 13:20:21,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 13:20:21,007 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:21,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:21,008 INFO L85 PathProgramCache]: Analyzing trace with hash 327454722, now seen corresponding path program 1 times [2024-11-13 13:20:21,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:21,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810962298] [2024-11-13 13:20:21,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:21,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:21,131 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 13:20:21,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:21,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810962298] [2024-11-13 13:20:21,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810962298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:21,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:21,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:20:21,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749044991] [2024-11-13 13:20:21,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:21,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:21,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:21,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:21,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:21,133 INFO L87 Difference]: Start difference. First operand 1028 states and 1839 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 13:20:21,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:21,187 INFO L93 Difference]: Finished difference Result 1474 states and 2519 transitions. [2024-11-13 13:20:21,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:21,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 13:20:21,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:21,196 INFO L225 Difference]: With dead ends: 1474 [2024-11-13 13:20:21,196 INFO L226 Difference]: Without dead ends: 1239 [2024-11-13 13:20:21,198 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 13:20:21,199 INFO L432 NwaCegarLoop]: 1587 mSDtfsCounter, 1492 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:21,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1663 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:20:21,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2024-11-13 13:20:21,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1237. [2024-11-13 13:20:21,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1237 states, 1235 states have (on average 1.7417004048582996) internal successors, (2151), 1236 states have internal predecessors, (2151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:21,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 2151 transitions. [2024-11-13 13:20:21,288 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 2151 transitions. Word has length 58 [2024-11-13 13:20:21,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:21,289 INFO L471 AbstractCegarLoop]: Abstraction has 1237 states and 2151 transitions. [2024-11-13 13:20:21,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 13:20:21,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 2151 transitions. [2024-11-13 13:20:21,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 13:20:21,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:21,291 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 13:20:21,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:20:21,293 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:21,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:21,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1888014078, now seen corresponding path program 1 times [2024-11-13 13:20:21,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:21,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731692812] [2024-11-13 13:20:21,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:21,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:21,398 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 13:20:21,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:21,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731692812] [2024-11-13 13:20:21,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731692812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:21,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:21,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:20:21,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155888255] [2024-11-13 13:20:21,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:21,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:21,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:21,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:21,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:21,404 INFO L87 Difference]: Start difference. First operand 1237 states and 2151 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 13:20:21,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:21,453 INFO L93 Difference]: Finished difference Result 2077 states and 3413 transitions. [2024-11-13 13:20:21,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:21,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 13:20:21,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:21,461 INFO L225 Difference]: With dead ends: 2077 [2024-11-13 13:20:21,461 INFO L226 Difference]: Without dead ends: 1633 [2024-11-13 13:20:21,463 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 13:20:21,464 INFO L432 NwaCegarLoop]: 1585 mSDtfsCounter, 1490 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:21,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1665 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:20:21,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-11-13 13:20:21,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1631. [2024-11-13 13:20:21,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1629 states have (on average 1.6740331491712708) internal successors, (2727), 1630 states have internal predecessors, (2727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:21,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2727 transitions. [2024-11-13 13:20:21,528 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2727 transitions. Word has length 58 [2024-11-13 13:20:21,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:21,528 INFO L471 AbstractCegarLoop]: Abstraction has 1631 states and 2727 transitions. [2024-11-13 13:20:21,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 13:20:21,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2727 transitions. [2024-11-13 13:20:21,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 13:20:21,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:21,529 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 13:20:21,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 13:20:21,530 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:21,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:21,532 INFO L85 PathProgramCache]: Analyzing trace with hash -107081214, now seen corresponding path program 1 times [2024-11-13 13:20:21,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:21,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681206203] [2024-11-13 13:20:21,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:21,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:21,624 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 13:20:21,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:21,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681206203] [2024-11-13 13:20:21,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681206203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:21,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:21,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:20:21,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360508747] [2024-11-13 13:20:21,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:21,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:21,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:21,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:21,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:21,627 INFO L87 Difference]: Start difference. First operand 1631 states and 2727 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 13:20:21,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:21,704 INFO L93 Difference]: Finished difference Result 3211 states and 5057 transitions. [2024-11-13 13:20:21,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:21,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 13:20:21,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:21,715 INFO L225 Difference]: With dead ends: 3211 [2024-11-13 13:20:21,715 INFO L226 Difference]: Without dead ends: 2373 [2024-11-13 13:20:21,718 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 13:20:21,719 INFO L432 NwaCegarLoop]: 1583 mSDtfsCounter, 1488 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:21,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1667 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:20:21,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2024-11-13 13:20:21,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 2371. [2024-11-13 13:20:21,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2371 states, 2369 states have (on average 1.5968763191219923) internal successors, (3783), 2370 states have internal predecessors, (3783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:21,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2371 states to 2371 states and 3783 transitions. [2024-11-13 13:20:21,820 INFO L78 Accepts]: Start accepts. Automaton has 2371 states and 3783 transitions. Word has length 58 [2024-11-13 13:20:21,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:21,820 INFO L471 AbstractCegarLoop]: Abstraction has 2371 states and 3783 transitions. [2024-11-13 13:20:21,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 13:20:21,821 INFO L276 IsEmpty]: Start isEmpty. Operand 2371 states and 3783 transitions. [2024-11-13 13:20:21,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 13:20:21,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:21,822 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 13:20:21,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 13:20:21,822 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:21,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:21,823 INFO L85 PathProgramCache]: Analyzing trace with hash -910807294, now seen corresponding path program 1 times [2024-11-13 13:20:21,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:21,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072445232] [2024-11-13 13:20:21,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:21,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:21,909 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 13:20:21,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:21,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072445232] [2024-11-13 13:20:21,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072445232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:21,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:21,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:20:21,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377723904] [2024-11-13 13:20:21,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:21,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:21,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:21,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:21,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:21,911 INFO L87 Difference]: Start difference. First operand 2371 states and 3783 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 13:20:22,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:22,024 INFO L93 Difference]: Finished difference Result 5335 states and 8057 transitions. [2024-11-13 13:20:22,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:22,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 13:20:22,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:22,044 INFO L225 Difference]: With dead ends: 5335 [2024-11-13 13:20:22,044 INFO L226 Difference]: Without dead ends: 3757 [2024-11-13 13:20:22,048 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 13:20:22,049 INFO L432 NwaCegarLoop]: 1597 mSDtfsCounter, 1494 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:22,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1669 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:20:22,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3757 states. [2024-11-13 13:20:22,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3757 to 3755. [2024-11-13 13:20:22,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3755 states, 3753 states have (on average 1.5195843325339728) internal successors, (5703), 3754 states have internal predecessors, (5703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:22,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3755 states to 3755 states and 5703 transitions. [2024-11-13 13:20:22,214 INFO L78 Accepts]: Start accepts. Automaton has 3755 states and 5703 transitions. Word has length 58 [2024-11-13 13:20:22,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:22,214 INFO L471 AbstractCegarLoop]: Abstraction has 3755 states and 5703 transitions. [2024-11-13 13:20:22,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 13:20:22,215 INFO L276 IsEmpty]: Start isEmpty. Operand 3755 states and 5703 transitions. [2024-11-13 13:20:22,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-13 13:20:22,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:22,216 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] [2024-11-13 13:20:22,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 13:20:22,216 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:22,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:22,217 INFO L85 PathProgramCache]: Analyzing trace with hash -558167159, now seen corresponding path program 1 times [2024-11-13 13:20:22,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:22,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291061580] [2024-11-13 13:20:22,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:22,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:22,521 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 13:20:22,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:22,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291061580] [2024-11-13 13:20:22,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291061580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:22,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:22,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:20:22,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272754993] [2024-11-13 13:20:22,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:22,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:20:22,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:22,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:20:22,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:20:22,523 INFO L87 Difference]: Start difference. First operand 3755 states and 5703 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:33,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:33,154 INFO L93 Difference]: Finished difference Result 6010 states and 10012 transitions. [2024-11-13 13:20:33,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:20:33,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-13 13:20:33,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:33,173 INFO L225 Difference]: With dead ends: 6010 [2024-11-13 13:20:33,173 INFO L226 Difference]: Without dead ends: 5257 [2024-11-13 13:20:33,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 13:20:33,176 INFO L432 NwaCegarLoop]: 779 mSDtfsCounter, 2395 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5354 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:33,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2395 Valid, 797 Invalid, 6507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5354 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2024-11-13 13:20:33,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5257 states. [2024-11-13 13:20:33,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5257 to 5257. [2024-11-13 13:20:33,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 5255 states have (on average 1.487535680304472) internal successors, (7817), 5256 states have internal predecessors, (7817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:33,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 7817 transitions. [2024-11-13 13:20:33,362 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 7817 transitions. Word has length 63 [2024-11-13 13:20:33,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:33,362 INFO L471 AbstractCegarLoop]: Abstraction has 5257 states and 7817 transitions. [2024-11-13 13:20:33,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:33,362 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 7817 transitions. [2024-11-13 13:20:33,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-13 13:20:33,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:33,366 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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] [2024-11-13 13:20:33,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 13:20:33,366 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:33,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:33,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1369824481, now seen corresponding path program 1 times [2024-11-13 13:20:33,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:33,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647044704] [2024-11-13 13:20:33,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:33,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:33,636 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 13:20:33,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:33,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647044704] [2024-11-13 13:20:33,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647044704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:33,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:33,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:20:33,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557413891] [2024-11-13 13:20:33,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:33,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:20:33,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:33,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:20:33,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:20:33,639 INFO L87 Difference]: Start difference. First operand 5257 states and 7817 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 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 13:20:34,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:34,293 INFO L93 Difference]: Finished difference Result 19861 states and 28623 transitions. [2024-11-13 13:20:34,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:20:34,293 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 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 77 [2024-11-13 13:20:34,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:34,371 INFO L225 Difference]: With dead ends: 19861 [2024-11-13 13:20:34,371 INFO L226 Difference]: Without dead ends: 17747 [2024-11-13 13:20:34,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:20:34,382 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 6305 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6305 SdHoareTripleChecker+Valid, 3588 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:34,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6305 Valid, 3588 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:20:34,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17747 states. [2024-11-13 13:20:34,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17747 to 7801. [2024-11-13 13:20:34,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7801 states, 7799 states have (on average 1.4618540838569047) internal successors, (11401), 7800 states have internal predecessors, (11401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:34,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7801 states to 7801 states and 11401 transitions. [2024-11-13 13:20:34,978 INFO L78 Accepts]: Start accepts. Automaton has 7801 states and 11401 transitions. Word has length 77 [2024-11-13 13:20:34,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:34,978 INFO L471 AbstractCegarLoop]: Abstraction has 7801 states and 11401 transitions. [2024-11-13 13:20:34,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 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 13:20:34,978 INFO L276 IsEmpty]: Start isEmpty. Operand 7801 states and 11401 transitions. [2024-11-13 13:20:34,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-13 13:20:34,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:34,986 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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] [2024-11-13 13:20:34,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 13:20:34,986 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:34,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:34,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1423024415, now seen corresponding path program 1 times [2024-11-13 13:20:34,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:34,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312162105] [2024-11-13 13:20:34,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:34,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:35,503 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 13:20:35,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:35,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312162105] [2024-11-13 13:20:35,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312162105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:35,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:35,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:20:35,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744836416] [2024-11-13 13:20:35,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:35,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:20:35,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:35,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:20:35,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:20:35,511 INFO L87 Difference]: Start difference. First operand 7801 states and 11401 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:36,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:36,333 INFO L93 Difference]: Finished difference Result 22821 states and 32815 transitions. [2024-11-13 13:20:36,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:20:36,335 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-13 13:20:36,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:36,393 INFO L225 Difference]: With dead ends: 22821 [2024-11-13 13:20:36,393 INFO L226 Difference]: Without dead ends: 19859 [2024-11-13 13:20:36,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:20:36,402 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 6351 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6351 SdHoareTripleChecker+Valid, 3615 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:36,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6351 Valid, 3615 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:20:36,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19859 states. [2024-11-13 13:20:36,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19859 to 11817. [2024-11-13 13:20:36,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11817 states, 11815 states have (on average 1.4429961912822682) internal successors, (17049), 11816 states have internal predecessors, (17049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:36,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11817 states to 11817 states and 17049 transitions. [2024-11-13 13:20:36,994 INFO L78 Accepts]: Start accepts. Automaton has 11817 states and 17049 transitions. Word has length 77 [2024-11-13 13:20:36,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:36,995 INFO L471 AbstractCegarLoop]: Abstraction has 11817 states and 17049 transitions. [2024-11-13 13:20:36,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:36,995 INFO L276 IsEmpty]: Start isEmpty. Operand 11817 states and 17049 transitions. [2024-11-13 13:20:36,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-13 13:20:36,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:36,998 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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] [2024-11-13 13:20:36,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 13:20:36,999 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:36,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:37,000 INFO L85 PathProgramCache]: Analyzing trace with hash 656474081, now seen corresponding path program 1 times [2024-11-13 13:20:37,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:37,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910128843] [2024-11-13 13:20:37,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:37,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:37,247 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 13:20:37,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:37,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910128843] [2024-11-13 13:20:37,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910128843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:37,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:37,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:20:37,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577040876] [2024-11-13 13:20:37,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:37,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:20:37,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:37,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:20:37,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:20:37,250 INFO L87 Difference]: Start difference. First operand 11817 states and 17049 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 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 13:20:38,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:38,248 INFO L93 Difference]: Finished difference Result 25781 states and 36991 transitions. [2024-11-13 13:20:38,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:20:38,250 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 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 77 [2024-11-13 13:20:38,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:38,359 INFO L225 Difference]: With dead ends: 25781 [2024-11-13 13:20:38,359 INFO L226 Difference]: Without dead ends: 22819 [2024-11-13 13:20:38,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:20:38,378 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 6397 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6397 SdHoareTripleChecker+Valid, 3578 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:38,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6397 Valid, 3578 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:20:38,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22819 states. [2024-11-13 13:20:39,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22819 to 14777. [2024-11-13 13:20:39,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14777 states, 14775 states have (on average 1.4365482233502538) internal successors, (21225), 14776 states have internal predecessors, (21225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:39,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14777 states to 14777 states and 21225 transitions. [2024-11-13 13:20:39,348 INFO L78 Accepts]: Start accepts. Automaton has 14777 states and 21225 transitions. Word has length 77 [2024-11-13 13:20:39,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:39,348 INFO L471 AbstractCegarLoop]: Abstraction has 14777 states and 21225 transitions. [2024-11-13 13:20:39,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 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 13:20:39,349 INFO L276 IsEmpty]: Start isEmpty. Operand 14777 states and 21225 transitions. [2024-11-13 13:20:39,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-13 13:20:39,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:39,354 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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] [2024-11-13 13:20:39,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 13:20:39,355 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:39,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:39,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1857560351, now seen corresponding path program 1 times [2024-11-13 13:20:39,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:39,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69650638] [2024-11-13 13:20:39,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:39,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:39,686 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 13:20:39,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:39,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69650638] [2024-11-13 13:20:39,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69650638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:39,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:39,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:20:39,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804833174] [2024-11-13 13:20:39,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:39,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:20:39,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:39,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:20:39,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:20:39,691 INFO L87 Difference]: Start difference. First operand 14777 states and 21225 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 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 13:20:40,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:40,706 INFO L93 Difference]: Finished difference Result 28741 states and 41167 transitions. [2024-11-13 13:20:40,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:20:40,707 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 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 77 [2024-11-13 13:20:40,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:40,790 INFO L225 Difference]: With dead ends: 28741 [2024-11-13 13:20:40,790 INFO L226 Difference]: Without dead ends: 25779 [2024-11-13 13:20:40,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:20:40,803 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 6355 mSDsluCounter, 2002 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6355 SdHoareTripleChecker+Valid, 3604 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:40,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6355 Valid, 3604 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:20:40,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25779 states. [2024-11-13 13:20:41,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25779 to 17737. [2024-11-13 13:20:41,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17737 states, 17735 states have (on average 1.4322526078376092) internal successors, (25401), 17736 states have internal predecessors, (25401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:41,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17737 states to 17737 states and 25401 transitions. [2024-11-13 13:20:41,623 INFO L78 Accepts]: Start accepts. Automaton has 17737 states and 25401 transitions. Word has length 77 [2024-11-13 13:20:41,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:41,624 INFO L471 AbstractCegarLoop]: Abstraction has 17737 states and 25401 transitions. [2024-11-13 13:20:41,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 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 13:20:41,624 INFO L276 IsEmpty]: Start isEmpty. Operand 17737 states and 25401 transitions. [2024-11-13 13:20:41,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-13 13:20:41,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:41,628 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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] [2024-11-13 13:20:41,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 13:20:41,628 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:41,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:41,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1633680865, now seen corresponding path program 1 times [2024-11-13 13:20:41,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:41,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705934414] [2024-11-13 13:20:41,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:41,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:41,848 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 13:20:41,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:41,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705934414] [2024-11-13 13:20:41,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705934414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:41,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:41,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:20:41,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436335196] [2024-11-13 13:20:41,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:41,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:20:41,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:41,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:20:41,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:20:41,851 INFO L87 Difference]: Start difference. First operand 17737 states and 25401 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:43,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:43,117 INFO L93 Difference]: Finished difference Result 31701 states and 45343 transitions. [2024-11-13 13:20:43,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:20:43,118 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-13 13:20:43,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:43,238 INFO L225 Difference]: With dead ends: 31701 [2024-11-13 13:20:43,242 INFO L226 Difference]: Without dead ends: 28739 [2024-11-13 13:20:43,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:20:43,262 INFO L432 NwaCegarLoop]: 1601 mSDtfsCounter, 6307 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6307 SdHoareTripleChecker+Valid, 3698 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:43,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6307 Valid, 3698 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:20:43,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28739 states. [2024-11-13 13:20:44,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28739 to 20697. [2024-11-13 13:20:44,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20697 states, 20695 states have (on average 1.4291857936699686) internal successors, (29577), 20696 states have internal predecessors, (29577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:44,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20697 states to 20697 states and 29577 transitions. [2024-11-13 13:20:44,380 INFO L78 Accepts]: Start accepts. Automaton has 20697 states and 29577 transitions. Word has length 77 [2024-11-13 13:20:44,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:44,381 INFO L471 AbstractCegarLoop]: Abstraction has 20697 states and 29577 transitions. [2024-11-13 13:20:44,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:44,381 INFO L276 IsEmpty]: Start isEmpty. Operand 20697 states and 29577 transitions. [2024-11-13 13:20:44,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-13 13:20:44,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:44,385 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2024-11-13 13:20:44,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 13:20:44,386 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:44,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:44,387 INFO L85 PathProgramCache]: Analyzing trace with hash 530272040, now seen corresponding path program 1 times [2024-11-13 13:20:44,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:44,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884982388] [2024-11-13 13:20:44,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:44,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:44,536 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:44,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:44,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884982388] [2024-11-13 13:20:44,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884982388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:44,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:44,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:20:44,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283265889] [2024-11-13 13:20:44,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:44,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:44,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:44,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:44,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:44,539 INFO L87 Difference]: Start difference. First operand 20697 states and 29577 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:45,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:45,324 INFO L93 Difference]: Finished difference Result 39101 states and 55563 transitions. [2024-11-13 13:20:45,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:45,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-13 13:20:45,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:45,359 INFO L225 Difference]: With dead ends: 39101 [2024-11-13 13:20:45,359 INFO L226 Difference]: Without dead ends: 20699 [2024-11-13 13:20:45,375 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 13:20:45,376 INFO L432 NwaCegarLoop]: 1577 mSDtfsCounter, 45 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:45,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3108 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:20:45,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20699 states. [2024-11-13 13:20:46,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20699 to 20697. [2024-11-13 13:20:46,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20697 states, 20695 states have (on average 1.4148828219376661) internal successors, (29281), 20696 states have internal predecessors, (29281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:46,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20697 states to 20697 states and 29281 transitions. [2024-11-13 13:20:46,394 INFO L78 Accepts]: Start accepts. Automaton has 20697 states and 29281 transitions. Word has length 78 [2024-11-13 13:20:46,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:46,394 INFO L471 AbstractCegarLoop]: Abstraction has 20697 states and 29281 transitions. [2024-11-13 13:20:46,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:46,395 INFO L276 IsEmpty]: Start isEmpty. Operand 20697 states and 29281 transitions. [2024-11-13 13:20:46,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-13 13:20:46,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:46,401 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2024-11-13 13:20:46,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 13:20:46,402 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:46,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:46,403 INFO L85 PathProgramCache]: Analyzing trace with hash 955044921, now seen corresponding path program 1 times [2024-11-13 13:20:46,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:46,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301844057] [2024-11-13 13:20:46,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:46,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:46,684 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:46,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:46,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301844057] [2024-11-13 13:20:46,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301844057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:46,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:46,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:20:46,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952305904] [2024-11-13 13:20:46,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:46,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:46,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:46,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:46,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:46,688 INFO L87 Difference]: Start difference. First operand 20697 states and 29281 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:47,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:47,261 INFO L93 Difference]: Finished difference Result 27584 states and 38975 transitions. [2024-11-13 13:20:47,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:47,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-13 13:20:47,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:47,298 INFO L225 Difference]: With dead ends: 27584 [2024-11-13 13:20:47,299 INFO L226 Difference]: Without dead ends: 9182 [2024-11-13 13:20:47,317 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 13:20:47,318 INFO L432 NwaCegarLoop]: 1575 mSDtfsCounter, 39 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3105 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:47,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3105 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:20:47,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9182 states. [2024-11-13 13:20:47,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9182 to 9174. [2024-11-13 13:20:47,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9174 states, 9172 states have (on average 1.4363279546445704) internal successors, (13174), 9173 states have internal predecessors, (13174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:47,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9174 states to 9174 states and 13174 transitions. [2024-11-13 13:20:47,630 INFO L78 Accepts]: Start accepts. Automaton has 9174 states and 13174 transitions. Word has length 79 [2024-11-13 13:20:47,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:47,630 INFO L471 AbstractCegarLoop]: Abstraction has 9174 states and 13174 transitions. [2024-11-13 13:20:47,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:47,631 INFO L276 IsEmpty]: Start isEmpty. Operand 9174 states and 13174 transitions. [2024-11-13 13:20:47,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-13 13:20:47,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:47,633 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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] [2024-11-13 13:20:47,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 13:20:47,634 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:47,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:47,634 INFO L85 PathProgramCache]: Analyzing trace with hash -237189830, now seen corresponding path program 1 times [2024-11-13 13:20:47,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:47,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104621116] [2024-11-13 13:20:47,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:47,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:47,774 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:47,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:47,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104621116] [2024-11-13 13:20:47,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104621116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:47,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:47,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:20:47,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952623448] [2024-11-13 13:20:47,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:47,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:47,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:47,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:47,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:47,777 INFO L87 Difference]: Start difference. First operand 9174 states and 13174 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 13:20:47,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:47,991 INFO L93 Difference]: Finished difference Result 12610 states and 17960 transitions. [2024-11-13 13:20:47,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:47,991 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 13:20:47,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:48,005 INFO L225 Difference]: With dead ends: 12610 [2024-11-13 13:20:48,006 INFO L226 Difference]: Without dead ends: 5744 [2024-11-13 13:20:48,014 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 13:20:48,016 INFO L432 NwaCegarLoop]: 1569 mSDtfsCounter, 41 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3084 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:48,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3084 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:20:48,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5744 states. [2024-11-13 13:20:48,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5744 to 5742. [2024-11-13 13:20:48,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5742 states, 5740 states have (on average 1.4526132404181185) internal successors, (8338), 5741 states have internal predecessors, (8338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:48,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5742 states to 5742 states and 8338 transitions. [2024-11-13 13:20:48,205 INFO L78 Accepts]: Start accepts. Automaton has 5742 states and 8338 transitions. Word has length 80 [2024-11-13 13:20:48,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:48,206 INFO L471 AbstractCegarLoop]: Abstraction has 5742 states and 8338 transitions. [2024-11-13 13:20:48,206 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 13:20:48,206 INFO L276 IsEmpty]: Start isEmpty. Operand 5742 states and 8338 transitions. [2024-11-13 13:20:48,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-13 13:20:48,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:48,208 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-13 13:20:48,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 13:20:48,210 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:48,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:48,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1111492148, now seen corresponding path program 1 times [2024-11-13 13:20:48,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:48,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553814643] [2024-11-13 13:20:48,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:48,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:48,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:48,345 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:48,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:48,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553814643] [2024-11-13 13:20:48,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553814643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:48,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:48,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:20:48,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94850294] [2024-11-13 13:20:48,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:48,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:48,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:48,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:48,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:48,349 INFO L87 Difference]: Start difference. First operand 5742 states and 8338 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:48,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:48,440 INFO L93 Difference]: Finished difference Result 7462 states and 10706 transitions. [2024-11-13 13:20:48,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:48,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-13 13:20:48,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:48,450 INFO L225 Difference]: With dead ends: 7462 [2024-11-13 13:20:48,451 INFO L226 Difference]: Without dead ends: 4028 [2024-11-13 13:20:48,454 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 13:20:48,455 INFO L432 NwaCegarLoop]: 1562 mSDtfsCounter, 38 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3069 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:48,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3069 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:20:48,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4028 states. [2024-11-13 13:20:48,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4028 to 4026. [2024-11-13 13:20:48,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4026 states, 4024 states have (on average 1.4776341948310139) internal successors, (5946), 4025 states have internal predecessors, (5946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:48,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4026 states to 4026 states and 5946 transitions. [2024-11-13 13:20:48,564 INFO L78 Accepts]: Start accepts. Automaton has 4026 states and 5946 transitions. Word has length 82 [2024-11-13 13:20:48,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:48,565 INFO L471 AbstractCegarLoop]: Abstraction has 4026 states and 5946 transitions. [2024-11-13 13:20:48,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:48,565 INFO L276 IsEmpty]: Start isEmpty. Operand 4026 states and 5946 transitions. [2024-11-13 13:20:48,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-13 13:20:48,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:48,566 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] [2024-11-13 13:20:48,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 13:20:48,567 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:48,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:48,567 INFO L85 PathProgramCache]: Analyzing trace with hash -447607586, now seen corresponding path program 1 times [2024-11-13 13:20:48,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:48,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104407347] [2024-11-13 13:20:48,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:48,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:48,690 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:48,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:48,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104407347] [2024-11-13 13:20:48,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104407347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:48,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:48,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:20:48,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090566082] [2024-11-13 13:20:48,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:48,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:48,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:48,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:48,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:48,694 INFO L87 Difference]: Start difference. First operand 4026 states and 5946 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:48,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:48,754 INFO L93 Difference]: Finished difference Result 4888 states and 7118 transitions. [2024-11-13 13:20:48,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:48,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-13 13:20:48,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:48,767 INFO L225 Difference]: With dead ends: 4888 [2024-11-13 13:20:48,767 INFO L226 Difference]: Without dead ends: 3170 [2024-11-13 13:20:48,770 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 13:20:48,773 INFO L432 NwaCegarLoop]: 1555 mSDtfsCounter, 35 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3054 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:48,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3054 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:20:48,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3170 states. [2024-11-13 13:20:48,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3170 to 3168. [2024-11-13 13:20:48,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3168 states, 3166 states have (on average 1.5044219835754895) internal successors, (4763), 3167 states have internal predecessors, (4763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:48,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3168 states to 3168 states and 4763 transitions. [2024-11-13 13:20:48,850 INFO L78 Accepts]: Start accepts. Automaton has 3168 states and 4763 transitions. Word has length 84 [2024-11-13 13:20:48,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:48,851 INFO L471 AbstractCegarLoop]: Abstraction has 3168 states and 4763 transitions. [2024-11-13 13:20:48,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:48,851 INFO L276 IsEmpty]: Start isEmpty. Operand 3168 states and 4763 transitions. [2024-11-13 13:20:48,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-13 13:20:48,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:48,852 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:20:48,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 13:20:48,853 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:48,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:48,853 INFO L85 PathProgramCache]: Analyzing trace with hash -41410960, now seen corresponding path program 1 times [2024-11-13 13:20:48,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:48,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669092845] [2024-11-13 13:20:48,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:48,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:49,080 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 13:20:49,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:49,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669092845] [2024-11-13 13:20:49,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669092845] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:20:49,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779226945] [2024-11-13 13:20:49,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:49,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:20:49,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:49,085 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:20:49,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:20:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:49,311 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 13:20:49,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:50,205 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:50,205 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:20:51,641 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:51,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779226945] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:20:51,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:20:51,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 20 [2024-11-13 13:20:51,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143207721] [2024-11-13 13:20:51,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:20:51,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-13 13:20:51,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:51,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-13 13:20:51,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-11-13 13:20:51,644 INFO L87 Difference]: Start difference. First operand 3168 states and 4763 transitions. Second operand has 20 states, 20 states have (on average 11.45) internal successors, (229), 20 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:53,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:53,148 INFO L93 Difference]: Finished difference Result 5824 states and 8251 transitions. [2024-11-13 13:20:53,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-13 13:20:53,148 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 11.45) internal successors, (229), 20 states have internal predecessors, (229), 0 states have call successors, (0), 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 86 [2024-11-13 13:20:53,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:53,159 INFO L225 Difference]: With dead ends: 5824 [2024-11-13 13:20:53,159 INFO L226 Difference]: Without dead ends: 4964 [2024-11-13 13:20:53,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1246, Unknown=0, NotChecked=0, Total=1640 [2024-11-13 13:20:53,163 INFO L432 NwaCegarLoop]: 1508 mSDtfsCounter, 14850 mSDsluCounter, 3294 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14850 SdHoareTripleChecker+Valid, 4802 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:53,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14850 Valid, 4802 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 13:20:53,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4964 states. [2024-11-13 13:20:53,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4964 to 4784. [2024-11-13 13:20:53,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4784 states, 4782 states have (on average 1.4196988707653702) internal successors, (6789), 4783 states have internal predecessors, (6789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:53,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4784 states to 4784 states and 6789 transitions. [2024-11-13 13:20:53,389 INFO L78 Accepts]: Start accepts. Automaton has 4784 states and 6789 transitions. Word has length 86 [2024-11-13 13:20:53,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:53,390 INFO L471 AbstractCegarLoop]: Abstraction has 4784 states and 6789 transitions. [2024-11-13 13:20:53,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 11.45) internal successors, (229), 20 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:53,392 INFO L276 IsEmpty]: Start isEmpty. Operand 4784 states and 6789 transitions. [2024-11-13 13:20:53,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-13 13:20:53,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:53,394 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] [2024-11-13 13:20:53,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 13:20:53,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:20:53,598 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:53,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:53,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1262781425, now seen corresponding path program 1 times [2024-11-13 13:20:53,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:53,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675846724] [2024-11-13 13:20:53,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:53,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:54,998 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:54,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:54,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675846724] [2024-11-13 13:20:54,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675846724] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:20:54,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142225613] [2024-11-13 13:20:55,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:55,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:20:55,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:55,002 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:20:55,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:20:55,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:55,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 13:20:55,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:55,953 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:55,954 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:20:57,582 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:57,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142225613] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:20:57,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:20:57,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 28 [2024-11-13 13:20:57,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912720489] [2024-11-13 13:20:57,584 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:20:57,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-13 13:20:57,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:57,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-13 13:20:57,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=702, Unknown=0, NotChecked=0, Total=812 [2024-11-13 13:20:57,588 INFO L87 Difference]: Start difference. First operand 4784 states and 6789 transitions. Second operand has 29 states, 29 states have (on average 7.482758620689655) internal successors, (217), 28 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:00,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:21:00,049 INFO L93 Difference]: Finished difference Result 13879 states and 18527 transitions. [2024-11-13 13:21:00,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-13 13:21:00,050 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 7.482758620689655) internal successors, (217), 28 states have internal predecessors, (217), 0 states have call successors, (0), 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 87 [2024-11-13 13:21:00,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:21:00,069 INFO L225 Difference]: With dead ends: 13879 [2024-11-13 13:21:00,069 INFO L226 Difference]: Without dead ends: 11797 [2024-11-13 13:21:00,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=647, Invalid=2433, Unknown=0, NotChecked=0, Total=3080 [2024-11-13 13:21:00,077 INFO L432 NwaCegarLoop]: 1507 mSDtfsCounter, 20324 mSDsluCounter, 7930 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20324 SdHoareTripleChecker+Valid, 9437 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:21:00,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20324 Valid, 9437 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 13:21:00,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11797 states. [2024-11-13 13:21:00,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11797 to 11785. [2024-11-13 13:21:00,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11785 states, 11783 states have (on average 1.3322583382839683) internal successors, (15698), 11784 states have internal predecessors, (15698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:00,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11785 states to 11785 states and 15698 transitions. [2024-11-13 13:21:00,665 INFO L78 Accepts]: Start accepts. Automaton has 11785 states and 15698 transitions. Word has length 87 [2024-11-13 13:21:00,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:21:00,666 INFO L471 AbstractCegarLoop]: Abstraction has 11785 states and 15698 transitions. [2024-11-13 13:21:00,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 7.482758620689655) internal successors, (217), 28 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:00,666 INFO L276 IsEmpty]: Start isEmpty. Operand 11785 states and 15698 transitions. [2024-11-13 13:21:00,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-13 13:21:00,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:21:00,669 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:00,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 13:21:00,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-13 13:21:00,871 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:21:00,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:00,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1430359965, now seen corresponding path program 1 times [2024-11-13 13:21:00,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:00,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835161798] [2024-11-13 13:21:00,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:00,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:01,664 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:21:01,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:01,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835161798] [2024-11-13 13:21:01,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835161798] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:21:01,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897129273] [2024-11-13 13:21:01,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:01,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:01,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:21:01,668 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:21:01,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:21:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:01,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 13:21:01,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:21:02,649 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:21:02,649 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:21:03,915 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:21:03,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897129273] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:21:03,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:21:03,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-13 13:21:03,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677946148] [2024-11-13 13:21:03,916 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:21:03,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-13 13:21:03,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:03,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-13 13:21:03,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2024-11-13 13:21:03,918 INFO L87 Difference]: Start difference. First operand 11785 states and 15698 transitions. Second operand has 25 states, 25 states have (on average 9.64) internal successors, (241), 24 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:07,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:21:07,298 INFO L93 Difference]: Finished difference Result 38271 states and 49973 transitions. [2024-11-13 13:21:07,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-13 13:21:07,299 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 9.64) internal successors, (241), 24 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-11-13 13:21:07,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:21:07,328 INFO L225 Difference]: With dead ends: 38271 [2024-11-13 13:21:07,328 INFO L226 Difference]: Without dead ends: 29210 [2024-11-13 13:21:07,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=513, Invalid=1743, Unknown=0, NotChecked=0, Total=2256 [2024-11-13 13:21:07,337 INFO L432 NwaCegarLoop]: 1501 mSDtfsCounter, 23295 mSDsluCounter, 6345 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23295 SdHoareTripleChecker+Valid, 7846 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:21:07,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23295 Valid, 7846 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 13:21:07,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29210 states. [2024-11-13 13:21:08,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29210 to 29098. [2024-11-13 13:21:08,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29098 states, 29096 states have (on average 1.292858124828155) internal successors, (37617), 29097 states have internal predecessors, (37617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:08,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29098 states to 29098 states and 37617 transitions. [2024-11-13 13:21:08,703 INFO L78 Accepts]: Start accepts. Automaton has 29098 states and 37617 transitions. Word has length 87 [2024-11-13 13:21:08,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:21:08,703 INFO L471 AbstractCegarLoop]: Abstraction has 29098 states and 37617 transitions. [2024-11-13 13:21:08,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.64) internal successors, (241), 24 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:08,704 INFO L276 IsEmpty]: Start isEmpty. Operand 29098 states and 37617 transitions. [2024-11-13 13:21:08,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-13 13:21:08,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:21:08,707 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:08,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 13:21:08,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-13 13:21:08,911 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:21:08,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:08,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1696901453, now seen corresponding path program 1 times [2024-11-13 13:21:08,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:08,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275876436] [2024-11-13 13:21:08,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:08,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:09,602 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:21:09,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:09,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275876436] [2024-11-13 13:21:09,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275876436] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:21:09,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406168774] [2024-11-13 13:21:09,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:09,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:09,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:21:09,606 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:21:09,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 13:21:09,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:09,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 13:21:09,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:21:10,493 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:21:10,493 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:21:11,427 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:21:11,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406168774] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:21:11,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:21:11,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-11-13 13:21:11,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65552583] [2024-11-13 13:21:11,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:21:11,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 13:21:11,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:11,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 13:21:11,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2024-11-13 13:21:11,429 INFO L87 Difference]: Start difference. First operand 29098 states and 37617 transitions. Second operand has 22 states, 22 states have (on average 8.954545454545455) internal successors, (197), 21 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:13,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:21:13,295 INFO L93 Difference]: Finished difference Result 54789 states and 70767 transitions. [2024-11-13 13:21:13,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 13:21:13,296 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.954545454545455) internal successors, (197), 21 states have internal predecessors, (197), 0 states have call successors, (0), 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 89 [2024-11-13 13:21:13,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:21:13,335 INFO L225 Difference]: With dead ends: 54789 [2024-11-13 13:21:13,335 INFO L226 Difference]: Without dead ends: 30038 [2024-11-13 13:21:13,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=268, Invalid=788, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 13:21:13,356 INFO L432 NwaCegarLoop]: 1530 mSDtfsCounter, 13906 mSDsluCounter, 3364 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13906 SdHoareTripleChecker+Valid, 4894 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:21:13,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13906 Valid, 4894 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:21:13,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30038 states. [2024-11-13 13:21:14,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30038 to 28630. [2024-11-13 13:21:14,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28630 states, 28628 states have (on average 1.2850705602906245) internal successors, (36789), 28629 states have internal predecessors, (36789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:14,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28630 states to 28630 states and 36789 transitions. [2024-11-13 13:21:14,558 INFO L78 Accepts]: Start accepts. Automaton has 28630 states and 36789 transitions. Word has length 89 [2024-11-13 13:21:14,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:21:14,558 INFO L471 AbstractCegarLoop]: Abstraction has 28630 states and 36789 transitions. [2024-11-13 13:21:14,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.954545454545455) internal successors, (197), 21 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:14,559 INFO L276 IsEmpty]: Start isEmpty. Operand 28630 states and 36789 transitions. [2024-11-13 13:21:14,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-13 13:21:14,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:21:14,561 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:14,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 13:21:14,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-13 13:21:14,766 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:21:14,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:14,766 INFO L85 PathProgramCache]: Analyzing trace with hash -502843170, now seen corresponding path program 1 times [2024-11-13 13:21:14,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:14,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4515149] [2024-11-13 13:21:14,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:14,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:15,953 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:21:15,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:15,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4515149] [2024-11-13 13:21:15,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4515149] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:21:15,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141656803] [2024-11-13 13:21:15,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:15,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:15,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:21:15,957 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:21:15,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 13:21:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:16,184 INFO L255 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-13 13:21:16,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:21:20,821 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:21:20,822 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:21:26,421 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:21:26,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141656803] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:21:26,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:21:26,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 21, 19] total 49 [2024-11-13 13:21:26,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634687695] [2024-11-13 13:21:26,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:21:26,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-13 13:21:26,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:26,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-13 13:21:26,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=2094, Unknown=0, NotChecked=0, Total=2352 [2024-11-13 13:21:26,425 INFO L87 Difference]: Start difference. First operand 28630 states and 36789 transitions. Second operand has 49 states, 49 states have (on average 4.836734693877551) internal successors, (237), 49 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:51,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:21:51,331 INFO L93 Difference]: Finished difference Result 77131 states and 99675 transitions. [2024-11-13 13:21:51,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2024-11-13 13:21:51,332 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 4.836734693877551) internal successors, (237), 49 states have internal predecessors, (237), 0 states have call successors, (0), 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 90 [2024-11-13 13:21:51,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:21:51,401 INFO L225 Difference]: With dead ends: 77131 [2024-11-13 13:21:51,401 INFO L226 Difference]: Without dead ends: 69343 [2024-11-13 13:21:51,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9094 ImplicationChecksByTransitivity, 21.0s TimeCoverageRelationStatistics Valid=4840, Invalid=21566, Unknown=0, NotChecked=0, Total=26406 [2024-11-13 13:21:51,421 INFO L432 NwaCegarLoop]: 1610 mSDtfsCounter, 23531 mSDsluCounter, 25680 mSDsCounter, 0 mSdLazyCounter, 3436 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23531 SdHoareTripleChecker+Valid, 27290 SdHoareTripleChecker+Invalid, 3542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 3436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:21:51,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23531 Valid, 27290 Invalid, 3542 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [106 Valid, 3436 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-13 13:21:51,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69343 states. [2024-11-13 13:21:52,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69343 to 26641. [2024-11-13 13:21:52,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26641 states, 26639 states have (on average 1.2857840009009347) internal successors, (34252), 26640 states have internal predecessors, (34252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:52,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26641 states to 26641 states and 34252 transitions. [2024-11-13 13:21:52,881 INFO L78 Accepts]: Start accepts. Automaton has 26641 states and 34252 transitions. Word has length 90 [2024-11-13 13:21:52,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:21:52,881 INFO L471 AbstractCegarLoop]: Abstraction has 26641 states and 34252 transitions. [2024-11-13 13:21:52,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 4.836734693877551) internal successors, (237), 49 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:52,881 INFO L276 IsEmpty]: Start isEmpty. Operand 26641 states and 34252 transitions. [2024-11-13 13:21:52,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-13 13:21:52,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:21:52,883 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:52,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 13:21:53,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-13 13:21:53,084 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:21:53,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:53,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1251400194, now seen corresponding path program 1 times [2024-11-13 13:21:53,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:53,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90499025] [2024-11-13 13:21:53,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:53,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:54,139 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:21:54,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:54,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90499025] [2024-11-13 13:21:54,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90499025] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:21:54,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062060339] [2024-11-13 13:21:54,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:54,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:54,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:21:54,143 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:21:54,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 13:21:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:54,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-11-13 13:21:54,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:22:16,081 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:22:16,081 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:22:28,695 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:22:28,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062060339] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:22:28,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:22:28,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 37, 32] total 77 [2024-11-13 13:22:28,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66797960] [2024-11-13 13:22:28,696 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:22:28,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2024-11-13 13:22:28,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:22:28,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2024-11-13 13:22:28,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=981, Invalid=4871, Unknown=0, NotChecked=0, Total=5852 [2024-11-13 13:22:28,700 INFO L87 Difference]: Start difference. First operand 26641 states and 34252 transitions. Second operand has 77 states, 77 states have (on average 3.2467532467532467) internal successors, (250), 77 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:23:40,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:23:40,203 INFO L93 Difference]: Finished difference Result 65367 states and 83195 transitions. [2024-11-13 13:23:40,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2024-11-13 13:23:40,204 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 77 states have (on average 3.2467532467532467) internal successors, (250), 77 states have internal predecessors, (250), 0 states have call successors, (0), 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 90 [2024-11-13 13:23:40,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:23:40,260 INFO L225 Difference]: With dead ends: 65367 [2024-11-13 13:23:40,260 INFO L226 Difference]: Without dead ends: 54909 [2024-11-13 13:23:40,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13216 ImplicationChecksByTransitivity, 70.7s TimeCoverageRelationStatistics Valid=7480, Invalid=29576, Unknown=0, NotChecked=0, Total=37056 [2024-11-13 13:23:40,279 INFO L432 NwaCegarLoop]: 1517 mSDtfsCounter, 24925 mSDsluCounter, 22602 mSDsCounter, 0 mSdLazyCounter, 5188 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24925 SdHoareTripleChecker+Valid, 24119 SdHoareTripleChecker+Invalid, 5308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 5188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:23:40,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24925 Valid, 24119 Invalid, 5308 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [120 Valid, 5188 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2024-11-13 13:23:40,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54909 states. [2024-11-13 13:23:42,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54909 to 44325. [2024-11-13 13:23:42,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44325 states, 44323 states have (on average 1.2753198113846085) internal successors, (56526), 44324 states have internal predecessors, (56526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:23:42,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44325 states to 44325 states and 56526 transitions. [2024-11-13 13:23:42,782 INFO L78 Accepts]: Start accepts. Automaton has 44325 states and 56526 transitions. Word has length 90 [2024-11-13 13:23:42,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:23:42,782 INFO L471 AbstractCegarLoop]: Abstraction has 44325 states and 56526 transitions. [2024-11-13 13:23:42,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 3.2467532467532467) internal successors, (250), 77 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:23:42,782 INFO L276 IsEmpty]: Start isEmpty. Operand 44325 states and 56526 transitions. [2024-11-13 13:23:42,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-13 13:23:42,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:23:42,784 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:23:42,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-13 13:23:42,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-13 13:23:42,985 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:23:42,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:23:42,986 INFO L85 PathProgramCache]: Analyzing trace with hash -661654726, now seen corresponding path program 1 times [2024-11-13 13:23:42,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:23:42,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943922082] [2024-11-13 13:23:42,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:23:42,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:23:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:23:44,057 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:23:44,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:23:44,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943922082] [2024-11-13 13:23:44,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943922082] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:23:44,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203033131] [2024-11-13 13:23:44,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:23:44,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:23:44,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:23:44,061 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:23:44,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 13:23:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:23:44,278 INFO L255 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 13:23:44,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:23:45,464 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:23:45,464 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:23:46,950 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:23:46,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203033131] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:23:46,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:23:46,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2024-11-13 13:23:46,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187741125] [2024-11-13 13:23:46,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:23:46,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-13 13:23:46,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:23:46,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-13 13:23:46,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=947, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 13:23:46,953 INFO L87 Difference]: Start difference. First operand 44325 states and 56526 transitions. Second operand has 33 states, 33 states have (on average 6.909090909090909) internal successors, (228), 33 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:23:55,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:23:55,499 INFO L93 Difference]: Finished difference Result 62477 states and 79497 transitions. [2024-11-13 13:23:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-13 13:23:55,499 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 6.909090909090909) internal successors, (228), 33 states have internal predecessors, (228), 0 states have call successors, (0), 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 90 [2024-11-13 13:23:55,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:23:55,536 INFO L225 Difference]: With dead ends: 62477 [2024-11-13 13:23:55,536 INFO L226 Difference]: Without dead ends: 39723 [2024-11-13 13:23:55,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1289 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1239, Invalid=4311, Unknown=0, NotChecked=0, Total=5550 [2024-11-13 13:23:55,546 INFO L432 NwaCegarLoop]: 1532 mSDtfsCounter, 8782 mSDsluCounter, 24670 mSDsCounter, 0 mSdLazyCounter, 1825 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8782 SdHoareTripleChecker+Valid, 26202 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:23:55,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8782 Valid, 26202 Invalid, 1857 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 1825 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 13:23:55,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39723 states. [2024-11-13 13:23:57,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39723 to 34277. [2024-11-13 13:23:57,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34277 states, 34275 states have (on average 1.2799416484318016) internal successors, (43870), 34276 states have internal predecessors, (43870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:23:57,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34277 states to 34277 states and 43870 transitions. [2024-11-13 13:23:57,406 INFO L78 Accepts]: Start accepts. Automaton has 34277 states and 43870 transitions. Word has length 90 [2024-11-13 13:23:57,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:23:57,407 INFO L471 AbstractCegarLoop]: Abstraction has 34277 states and 43870 transitions. [2024-11-13 13:23:57,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 6.909090909090909) internal successors, (228), 33 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:23:57,407 INFO L276 IsEmpty]: Start isEmpty. Operand 34277 states and 43870 transitions. [2024-11-13 13:23:57,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-13 13:23:57,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:23:57,410 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] [2024-11-13 13:23:57,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 13:23:57,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-13 13:23:57,611 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:23:57,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:23:57,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1735306836, now seen corresponding path program 1 times [2024-11-13 13:23:57,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:23:57,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770062247] [2024-11-13 13:23:57,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:23:57,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:23:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:23:58,817 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:23:58,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:23:58,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770062247] [2024-11-13 13:23:58,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770062247] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:23:58,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244744517] [2024-11-13 13:23:58,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:23:58,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:23:58,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:23:58,820 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:23:58,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 13:23:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:23:59,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 13:23:59,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:24:01,696 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:24:01,696 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:24:05,048 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:24:05,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244744517] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:24:05,048 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:24:05,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16, 19] total 43 [2024-11-13 13:24:05,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796954021] [2024-11-13 13:24:05,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:24:05,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-13 13:24:05,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:24:05,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-13 13:24:05,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=1596, Unknown=0, NotChecked=0, Total=1806 [2024-11-13 13:24:05,051 INFO L87 Difference]: Start difference. First operand 34277 states and 43870 transitions. Second operand has 43 states, 43 states have (on average 5.372093023255814) internal successors, (231), 43 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:24:25,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:24:25,867 INFO L93 Difference]: Finished difference Result 131749 states and 168636 transitions. [2024-11-13 13:24:25,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2024-11-13 13:24:25,868 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 5.372093023255814) internal successors, (231), 43 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-13 13:24:25,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:24:26,045 INFO L225 Difference]: With dead ends: 131749 [2024-11-13 13:24:26,045 INFO L226 Difference]: Without dead ends: 118517 [2024-11-13 13:24:26,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8768 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=4079, Invalid=19483, Unknown=0, NotChecked=0, Total=23562 [2024-11-13 13:24:26,069 INFO L432 NwaCegarLoop]: 1561 mSDtfsCounter, 21361 mSDsluCounter, 17571 mSDsCounter, 0 mSdLazyCounter, 1812 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21361 SdHoareTripleChecker+Valid, 19132 SdHoareTripleChecker+Invalid, 1923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:24:26,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21361 Valid, 19132 Invalid, 1923 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [111 Valid, 1812 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 13:24:26,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118517 states. [2024-11-13 13:24:29,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118517 to 30167. [2024-11-13 13:24:29,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30167 states, 30165 states have (on average 1.2850654732305653) internal successors, (38764), 30166 states have internal predecessors, (38764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:24:29,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30167 states to 30167 states and 38764 transitions. [2024-11-13 13:24:29,496 INFO L78 Accepts]: Start accepts. Automaton has 30167 states and 38764 transitions. Word has length 92 [2024-11-13 13:24:29,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:24:29,496 INFO L471 AbstractCegarLoop]: Abstraction has 30167 states and 38764 transitions. [2024-11-13 13:24:29,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 5.372093023255814) internal successors, (231), 43 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:24:29,501 INFO L276 IsEmpty]: Start isEmpty. Operand 30167 states and 38764 transitions. [2024-11-13 13:24:29,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-13 13:24:29,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:24:29,512 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 13:24:29,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 13:24:29,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:24:29,713 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:24:29,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:24:29,714 INFO L85 PathProgramCache]: Analyzing trace with hash 30458268, now seen corresponding path program 1 times [2024-11-13 13:24:29,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:24:29,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209627528] [2024-11-13 13:24:29,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:24:29,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:24:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:24:30,032 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:24:30,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:24:30,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209627528] [2024-11-13 13:24:30,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209627528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:24:30,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:24:30,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:24:30,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903622616] [2024-11-13 13:24:30,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:24:30,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:24:30,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:24:30,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:24:30,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:24:30,035 INFO L87 Difference]: Start difference. First operand 30167 states and 38764 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:24:38,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:24:38,815 INFO L93 Difference]: Finished difference Result 33961 states and 45127 transitions. [2024-11-13 13:24:38,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:24:38,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2024-11-13 13:24:38,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:24:38,845 INFO L225 Difference]: With dead ends: 33961 [2024-11-13 13:24:38,846 INFO L226 Difference]: Without dead ends: 31669 [2024-11-13 13:24:38,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:24:38,852 INFO L432 NwaCegarLoop]: 778 mSDtfsCounter, 791 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 3779 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 4443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 3779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:24:38,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 900 Invalid, 4443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 3779 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-13 13:24:38,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31669 states. [2024-11-13 13:24:40,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31669 to 30918. [2024-11-13 13:24:40,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30918 states, 30916 states have (on average 1.2782054599560098) internal successors, (39517), 30917 states have internal predecessors, (39517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:24:40,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30918 states to 30918 states and 39517 transitions. [2024-11-13 13:24:40,858 INFO L78 Accepts]: Start accepts. Automaton has 30918 states and 39517 transitions. Word has length 134 [2024-11-13 13:24:40,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:24:40,859 INFO L471 AbstractCegarLoop]: Abstraction has 30918 states and 39517 transitions. [2024-11-13 13:24:40,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:24:40,859 INFO L276 IsEmpty]: Start isEmpty. Operand 30918 states and 39517 transitions. [2024-11-13 13:24:40,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 13:24:40,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:24:40,866 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 13:24:40,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-13 13:24:40,866 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:24:40,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:24:40,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1046268760, now seen corresponding path program 1 times [2024-11-13 13:24:40,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:24:40,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989540260] [2024-11-13 13:24:40,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:24:40,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:24:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:24:42,056 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 50 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:24:42,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:24:42,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989540260] [2024-11-13 13:24:42,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989540260] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:24:42,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565249073] [2024-11-13 13:24:42,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:24:42,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:24:42,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:24:42,060 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:24:42,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 13:24:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:24:42,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-13 13:24:42,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:24:43,890 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 29 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:24:43,890 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:24:46,671 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 25 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:24:46,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565249073] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:24:46,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:24:46,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 33 [2024-11-13 13:24:46,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310054856] [2024-11-13 13:24:46,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:24:46,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-13 13:24:46,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:24:46,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-13 13:24:46,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1004, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 13:24:46,673 INFO L87 Difference]: Start difference. First operand 30918 states and 39517 transitions. Second operand has 34 states, 34 states have (on average 11.529411764705882) internal successors, (392), 33 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:25:03,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:25:03,717 INFO L93 Difference]: Finished difference Result 75618 states and 96761 transitions. [2024-11-13 13:25:03,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2024-11-13 13:25:03,718 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 11.529411764705882) internal successors, (392), 33 states have internal predecessors, (392), 0 states have call successors, (0), 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 140 [2024-11-13 13:25:03,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:25:03,773 INFO L225 Difference]: With dead ends: 75618 [2024-11-13 13:25:03,773 INFO L226 Difference]: Without dead ends: 51974 [2024-11-13 13:25:03,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6405 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=3304, Invalid=18158, Unknown=0, NotChecked=0, Total=21462 [2024-11-13 13:25:03,791 INFO L432 NwaCegarLoop]: 1546 mSDtfsCounter, 24597 mSDsluCounter, 13413 mSDsCounter, 0 mSdLazyCounter, 2488 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24597 SdHoareTripleChecker+Valid, 14959 SdHoareTripleChecker+Invalid, 2551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:25:03,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24597 Valid, 14959 Invalid, 2551 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 2488 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 13:25:03,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51974 states. [2024-11-13 13:25:06,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51974 to 41378. [2024-11-13 13:25:06,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41378 states, 41376 states have (on average 1.266410479505027) internal successors, (52399), 41377 states have internal predecessors, (52399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:25:06,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41378 states to 41378 states and 52399 transitions. [2024-11-13 13:25:06,822 INFO L78 Accepts]: Start accepts. Automaton has 41378 states and 52399 transitions. Word has length 140 [2024-11-13 13:25:06,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:25:06,823 INFO L471 AbstractCegarLoop]: Abstraction has 41378 states and 52399 transitions. [2024-11-13 13:25:06,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 11.529411764705882) internal successors, (392), 33 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:25:06,823 INFO L276 IsEmpty]: Start isEmpty. Operand 41378 states and 52399 transitions. [2024-11-13 13:25:06,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-13 13:25:06,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:25:06,830 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 13:25:06,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-13 13:25:07,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:25:07,031 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:25:07,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:25:07,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1636387043, now seen corresponding path program 1 times [2024-11-13 13:25:07,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:25:07,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640377715] [2024-11-13 13:25:07,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:25:07,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:25:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:25:07,964 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 34 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:25:07,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:25:07,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640377715] [2024-11-13 13:25:07,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640377715] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:25:07,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906539846] [2024-11-13 13:25:07,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:25:07,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:25:07,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:25:07,967 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:25:07,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a49db177-57cf-4e4c-a3a2-27a468f7c84a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 13:25:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:25:08,210 INFO L255 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-13 13:25:08,212 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:25:09,808 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 36 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:25:09,809 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:25:12,200 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 34 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:25:12,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906539846] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:25:12,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:25:12,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 27 [2024-11-13 13:25:12,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660893423] [2024-11-13 13:25:12,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:25:12,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-13 13:25:12,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:25:12,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-13 13:25:12,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2024-11-13 13:25:12,203 INFO L87 Difference]: Start difference. First operand 41378 states and 52399 transitions. Second operand has 28 states, 28 states have (on average 12.357142857142858) internal successors, (346), 27 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)