./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/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_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/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_098d1226-816b-4122-b46f-9226d6b93e03/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 561889d92df45f99e756a59f568aff549bcbf1af3442520c3f6faf4dbc996ed6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:00:12,475 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:00:12,548 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:00:12,553 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:00:12,553 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:00:12,598 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:00:12,599 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:00:12,599 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:00:12,600 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:00:12,600 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:00:12,600 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:00:12,600 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:00:12,601 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:00:12,601 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:00:12,601 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:00:12,601 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:00:12,601 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:00:12,601 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:00:12,603 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:00:12,603 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:00:12,603 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:00:12,603 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:00:12,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:00:12,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:00:12,603 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:00:12,604 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:00:12,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:00:12,604 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:00:12,604 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:00:12,604 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:00:12,604 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:00:12,604 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:00:12,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:00:12,604 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:00:12,605 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:00:12,605 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:00:12,605 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:00:12,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:00:12,605 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:00:12,605 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:00:12,605 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:00:12,605 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:00:12,605 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_098d1226-816b-4122-b46f-9226d6b93e03/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 -> 561889d92df45f99e756a59f568aff549bcbf1af3442520c3f6faf4dbc996ed6 [2024-11-13 13:00:12,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:00:12,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:00:13,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:00:13,003 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:00:13,003 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:00:13,005 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c Unable to find full path for "g++" [2024-11-13 13:00:15,152 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:00:15,459 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:00:15,462 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-11-13 13:00:15,473 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/data/d1a325d5a/3691892d9616448a9d2f6ac8255ff114/FLAG055db488b [2024-11-13 13:00:15,499 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/data/d1a325d5a/3691892d9616448a9d2f6ac8255ff114 [2024-11-13 13:00:15,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:00:15,504 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:00:15,505 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:00:15,505 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:00:15,513 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:00:15,514 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:00:15" (1/1) ... [2024-11-13 13:00:15,514 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76e719b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:15, skipping insertion in model container [2024-11-13 13:00:15,515 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:00:15" (1/1) ... [2024-11-13 13:00:15,558 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:00:15,793 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_098d1226-816b-4122-b46f-9226d6b93e03/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7180,7193] [2024-11-13 13:00:15,809 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_098d1226-816b-4122-b46f-9226d6b93e03/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[9491,9504] [2024-11-13 13:00:15,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:00:15,831 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:00:15,879 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_098d1226-816b-4122-b46f-9226d6b93e03/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7180,7193] [2024-11-13 13:00:15,893 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_098d1226-816b-4122-b46f-9226d6b93e03/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[9491,9504] [2024-11-13 13:00:15,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:00:15,922 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:00:15,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:15 WrapperNode [2024-11-13 13:00:15,923 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:00:15,924 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:00:15,924 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:00:15,924 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:00:15,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:15" (1/1) ... [2024-11-13 13:00:15,944 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:15" (1/1) ... [2024-11-13 13:00:15,995 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 505 [2024-11-13 13:00:15,996 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:00:15,996 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:00:15,996 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:00:15,997 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:00:16,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:15" (1/1) ... [2024-11-13 13:00:16,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:15" (1/1) ... [2024-11-13 13:00:16,010 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:15" (1/1) ... [2024-11-13 13:00:16,025 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 13:00:16,028 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:15" (1/1) ... [2024-11-13 13:00:16,029 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:15" (1/1) ... [2024-11-13 13:00:16,042 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:15" (1/1) ... [2024-11-13 13:00:16,049 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:15" (1/1) ... [2024-11-13 13:00:16,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:15" (1/1) ... [2024-11-13 13:00:16,058 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:15" (1/1) ... [2024-11-13 13:00:16,061 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:00:16,062 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:00:16,062 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:00:16,062 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:00:16,063 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:15" (1/1) ... [2024-11-13 13:00:16,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:00:16,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:00:16,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:00:16,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:00:16,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:00:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:00:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:00:16,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:00:16,288 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:00:16,289 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:00:16,940 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-11-13 13:00:16,941 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:00:16,958 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:00:16,958 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 13:00:16,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:00:16 BoogieIcfgContainer [2024-11-13 13:00:16,959 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:00:16,962 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:00:16,962 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:00:16,968 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:00:16,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:00:15" (1/3) ... [2024-11-13 13:00:16,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bca1c90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:00:16, skipping insertion in model container [2024-11-13 13:00:16,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:15" (2/3) ... [2024-11-13 13:00:16,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bca1c90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:00:16, skipping insertion in model container [2024-11-13 13:00:16,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:00:16" (3/3) ... [2024-11-13 13:00:16,975 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-11-13 13:00:16,996 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:00:16,998 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c that has 1 procedures, 106 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-13 13:00:17,086 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:00:17,108 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;@264e067e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:00:17,108 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 13:00:17,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 103 states have (on average 1.7572815533980584) internal successors, (181), 105 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:17,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-13 13:00:17,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:17,130 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] [2024-11-13 13:00:17,131 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:17,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:17,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1038847250, now seen corresponding path program 1 times [2024-11-13 13:00:17,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:17,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693315872] [2024-11-13 13:00:17,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:17,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:18,019 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 13:00:18,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:18,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693315872] [2024-11-13 13:00:18,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693315872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:18,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:18,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:00:18,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227481749] [2024-11-13 13:00:18,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:18,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:00:18,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:18,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:00:18,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:00:18,069 INFO L87 Difference]: Start difference. First operand has 106 states, 103 states have (on average 1.7572815533980584) internal successors, (181), 105 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:18,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:18,503 INFO L93 Difference]: Finished difference Result 416 states and 663 transitions. [2024-11-13 13:00:18,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:00:18,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2024-11-13 13:00:18,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:18,526 INFO L225 Difference]: With dead ends: 416 [2024-11-13 13:00:18,526 INFO L226 Difference]: Without dead ends: 353 [2024-11-13 13:00:18,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:00:18,537 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 596 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:18,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 768 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 13:00:18,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-13 13:00:18,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 155. [2024-11-13 13:00:18,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 153 states have (on average 1.4313725490196079) internal successors, (219), 154 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:18,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 219 transitions. [2024-11-13 13:00:18,614 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 219 transitions. Word has length 48 [2024-11-13 13:00:18,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:18,615 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 219 transitions. [2024-11-13 13:00:18,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:18,617 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 219 transitions. [2024-11-13 13:00:18,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-13 13:00:18,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:18,618 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] [2024-11-13 13:00:18,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:00:18,621 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:18,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:18,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1964840261, now seen corresponding path program 1 times [2024-11-13 13:00:18,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:18,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111220199] [2024-11-13 13:00:18,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:18,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:18,845 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 13:00:18,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:18,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111220199] [2024-11-13 13:00:18,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111220199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:18,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:18,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:00:18,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080779598] [2024-11-13 13:00:18,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:18,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:00:18,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:18,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:00:18,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:00:18,849 INFO L87 Difference]: Start difference. First operand 155 states and 219 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:18,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:18,938 INFO L93 Difference]: Finished difference Result 244 states and 352 transitions. [2024-11-13 13:00:18,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:00:18,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-11-13 13:00:18,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:18,940 INFO L225 Difference]: With dead ends: 244 [2024-11-13 13:00:18,940 INFO L226 Difference]: Without dead ends: 159 [2024-11-13 13:00:18,941 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 13:00:18,942 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 73 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:18,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 301 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:00:18,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-13 13:00:18,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 157. [2024-11-13 13:00:18,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 155 states have (on average 1.4193548387096775) internal successors, (220), 156 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:18,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 220 transitions. [2024-11-13 13:00:18,968 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 220 transitions. Word has length 49 [2024-11-13 13:00:18,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:18,968 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 220 transitions. [2024-11-13 13:00:18,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:18,969 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 220 transitions. [2024-11-13 13:00:18,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-13 13:00:18,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:18,970 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:18,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:00:18,970 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:18,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:18,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1398279763, now seen corresponding path program 1 times [2024-11-13 13:00:18,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:18,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492515021] [2024-11-13 13:00:18,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:18,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:19,327 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 13:00:19,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:19,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492515021] [2024-11-13 13:00:19,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492515021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:19,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:19,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:00:19,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198534719] [2024-11-13 13:00:19,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:19,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:00:19,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:19,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:00:19,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:00:19,333 INFO L87 Difference]: Start difference. First operand 157 states and 220 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:19,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:19,480 INFO L93 Difference]: Finished difference Result 470 states and 690 transitions. [2024-11-13 13:00:19,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:00:19,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-13 13:00:19,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:19,484 INFO L225 Difference]: With dead ends: 470 [2024-11-13 13:00:19,485 INFO L226 Difference]: Without dead ends: 388 [2024-11-13 13:00:19,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:00:19,489 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 298 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:19,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 532 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:00:19,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-13 13:00:19,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 248. [2024-11-13 13:00:19,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 246 states have (on average 1.4593495934959348) internal successors, (359), 247 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:19,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 359 transitions. [2024-11-13 13:00:19,514 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 359 transitions. Word has length 50 [2024-11-13 13:00:19,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:19,515 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 359 transitions. [2024-11-13 13:00:19,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:19,515 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 359 transitions. [2024-11-13 13:00:19,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-13 13:00:19,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:19,517 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:19,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:00:19,517 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:19,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:19,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1526101883, now seen corresponding path program 1 times [2024-11-13 13:00:19,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:19,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571038591] [2024-11-13 13:00:19,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:19,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:19,750 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 13:00:19,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:19,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571038591] [2024-11-13 13:00:19,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571038591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:19,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:19,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:00:19,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531966666] [2024-11-13 13:00:19,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:19,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:00:19,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:19,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:00:19,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:00:19,754 INFO L87 Difference]: Start difference. First operand 248 states and 359 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:19,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:19,918 INFO L93 Difference]: Finished difference Result 556 states and 821 transitions. [2024-11-13 13:00:19,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:00:19,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-13 13:00:19,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:19,922 INFO L225 Difference]: With dead ends: 556 [2024-11-13 13:00:19,922 INFO L226 Difference]: Without dead ends: 474 [2024-11-13 13:00:19,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:00:19,924 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 356 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:19,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 537 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:00:19,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-11-13 13:00:19,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 376. [2024-11-13 13:00:19,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 374 states have (on average 1.4786096256684491) internal successors, (553), 375 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:19,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 553 transitions. [2024-11-13 13:00:19,970 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 553 transitions. Word has length 50 [2024-11-13 13:00:19,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:19,971 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 553 transitions. [2024-11-13 13:00:19,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:19,972 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 553 transitions. [2024-11-13 13:00:19,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-13 13:00:19,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:19,973 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:19,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:00:19,974 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:19,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:19,975 INFO L85 PathProgramCache]: Analyzing trace with hash 2031133031, now seen corresponding path program 1 times [2024-11-13 13:00:19,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:19,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201970670] [2024-11-13 13:00:19,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:19,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:20,190 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 13:00:20,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:20,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201970670] [2024-11-13 13:00:20,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201970670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:20,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:20,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:00:20,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022514753] [2024-11-13 13:00:20,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:20,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:00:20,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:20,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:00:20,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:00:20,193 INFO L87 Difference]: Start difference. First operand 376 states and 553 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:20,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:20,352 INFO L93 Difference]: Finished difference Result 647 states and 960 transitions. [2024-11-13 13:00:20,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:00:20,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-13 13:00:20,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:20,357 INFO L225 Difference]: With dead ends: 647 [2024-11-13 13:00:20,357 INFO L226 Difference]: Without dead ends: 565 [2024-11-13 13:00:20,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:00:20,362 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 361 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:20,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 550 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:00:20,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-13 13:00:20,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 467. [2024-11-13 13:00:20,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4881720430107528) internal successors, (692), 466 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:20,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 692 transitions. [2024-11-13 13:00:20,400 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 692 transitions. Word has length 50 [2024-11-13 13:00:20,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:20,400 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 692 transitions. [2024-11-13 13:00:20,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:20,401 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 692 transitions. [2024-11-13 13:00:20,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 13:00:20,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:20,408 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:20,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:00:20,408 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:20,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:20,409 INFO L85 PathProgramCache]: Analyzing trace with hash 222346276, now seen corresponding path program 1 times [2024-11-13 13:00:20,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:20,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825777129] [2024-11-13 13:00:20,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:20,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:20,647 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 13:00:20,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:20,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825777129] [2024-11-13 13:00:20,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825777129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:20,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:20,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:00:20,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216560071] [2024-11-13 13:00:20,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:20,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:00:20,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:20,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:00:20,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:00:20,652 INFO L87 Difference]: Start difference. First operand 467 states and 692 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:20,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:20,830 INFO L93 Difference]: Finished difference Result 911 states and 1360 transitions. [2024-11-13 13:00:20,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:00:20,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-13 13:00:20,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:20,834 INFO L225 Difference]: With dead ends: 911 [2024-11-13 13:00:20,834 INFO L226 Difference]: Without dead ends: 467 [2024-11-13 13:00:20,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:00:20,837 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 380 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:20,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 80 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:00:20,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-11-13 13:00:20,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2024-11-13 13:00:20,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4666666666666666) internal successors, (682), 466 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:20,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 682 transitions. [2024-11-13 13:00:20,870 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 682 transitions. Word has length 51 [2024-11-13 13:00:20,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:20,871 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 682 transitions. [2024-11-13 13:00:20,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:20,872 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 682 transitions. [2024-11-13 13:00:20,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-13 13:00:20,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:20,875 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:20,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:00:20,876 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:20,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:20,876 INFO L85 PathProgramCache]: Analyzing trace with hash 323435980, now seen corresponding path program 1 times [2024-11-13 13:00:20,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:20,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968058349] [2024-11-13 13:00:20,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:20,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:21,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:00:21,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:21,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968058349] [2024-11-13 13:00:21,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968058349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:21,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:21,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:00:21,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362206293] [2024-11-13 13:00:21,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:21,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:00:21,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:21,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:00:21,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:00:21,085 INFO L87 Difference]: Start difference. First operand 467 states and 682 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:21,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:21,228 INFO L93 Difference]: Finished difference Result 907 states and 1336 transitions. [2024-11-13 13:00:21,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:00:21,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-11-13 13:00:21,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:21,231 INFO L225 Difference]: With dead ends: 907 [2024-11-13 13:00:21,232 INFO L226 Difference]: Without dead ends: 467 [2024-11-13 13:00:21,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:00:21,233 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 362 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:21,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 88 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:00:21,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-11-13 13:00:21,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2024-11-13 13:00:21,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4451612903225806) internal successors, (672), 466 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:21,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 672 transitions. [2024-11-13 13:00:21,254 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 672 transitions. Word has length 52 [2024-11-13 13:00:21,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:21,254 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 672 transitions. [2024-11-13 13:00:21,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:21,255 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 672 transitions. [2024-11-13 13:00:21,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-13 13:00:21,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:21,256 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:21,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 13:00:21,256 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:21,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:21,257 INFO L85 PathProgramCache]: Analyzing trace with hash 549255064, now seen corresponding path program 1 times [2024-11-13 13:00:21,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:21,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32513583] [2024-11-13 13:00:21,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:21,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:21,439 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 13:00:21,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:21,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32513583] [2024-11-13 13:00:21,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32513583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:21,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:21,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:00:21,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619129350] [2024-11-13 13:00:21,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:21,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:00:21,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:21,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:00:21,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:00:21,441 INFO L87 Difference]: Start difference. First operand 467 states and 672 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:21,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:21,591 INFO L93 Difference]: Finished difference Result 903 states and 1312 transitions. [2024-11-13 13:00:21,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:00:21,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-13 13:00:21,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:21,594 INFO L225 Difference]: With dead ends: 903 [2024-11-13 13:00:21,594 INFO L226 Difference]: Without dead ends: 467 [2024-11-13 13:00:21,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:00:21,596 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 344 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:21,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 96 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:00:21,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-11-13 13:00:21,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2024-11-13 13:00:21,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4236559139784946) internal successors, (662), 466 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:21,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 662 transitions. [2024-11-13 13:00:21,621 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 662 transitions. Word has length 53 [2024-11-13 13:00:21,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:21,621 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 662 transitions. [2024-11-13 13:00:21,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:21,621 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 662 transitions. [2024-11-13 13:00:21,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-13 13:00:21,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:21,623 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 13:00:21,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:00:21,624 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:21,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:21,624 INFO L85 PathProgramCache]: Analyzing trace with hash -680909608, now seen corresponding path program 1 times [2024-11-13 13:00:21,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:21,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987321752] [2024-11-13 13:00:21,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:21,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:22,154 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 13:00:22,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:22,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987321752] [2024-11-13 13:00:22,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987321752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:22,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:22,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 13:00:22,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286312843] [2024-11-13 13:00:22,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:22,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:00:22,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:22,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:00:22,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:00:22,156 INFO L87 Difference]: Start difference. First operand 467 states and 662 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:22,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:22,630 INFO L93 Difference]: Finished difference Result 1260 states and 1810 transitions. [2024-11-13 13:00:22,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:00:22,631 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-13 13:00:22,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:22,635 INFO L225 Difference]: With dead ends: 1260 [2024-11-13 13:00:22,635 INFO L226 Difference]: Without dead ends: 856 [2024-11-13 13:00:22,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-13 13:00:22,637 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 706 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:22,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 324 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 13:00:22,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2024-11-13 13:00:22,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 467. [2024-11-13 13:00:22,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.421505376344086) internal successors, (661), 466 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:22,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 661 transitions. [2024-11-13 13:00:22,660 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 661 transitions. Word has length 54 [2024-11-13 13:00:22,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:22,660 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 661 transitions. [2024-11-13 13:00:22,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:22,660 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 661 transitions. [2024-11-13 13:00:22,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-13 13:00:22,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:22,661 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:22,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 13:00:22,662 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:22,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:22,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1757672516, now seen corresponding path program 1 times [2024-11-13 13:00:22,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:22,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085691377] [2024-11-13 13:00:22,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:22,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:23,170 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 13:00:23,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:23,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085691377] [2024-11-13 13:00:23,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085691377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:23,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:23,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 13:00:23,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908859488] [2024-11-13 13:00:23,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:23,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:00:23,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:23,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:00:23,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:00:23,172 INFO L87 Difference]: Start difference. First operand 467 states and 661 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 9 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 13:00:23,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:23,895 INFO L93 Difference]: Finished difference Result 1288 states and 1843 transitions. [2024-11-13 13:00:23,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 13:00:23,895 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 9 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 13:00:23,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:23,900 INFO L225 Difference]: With dead ends: 1288 [2024-11-13 13:00:23,900 INFO L226 Difference]: Without dead ends: 889 [2024-11-13 13:00:23,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-13 13:00:23,902 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 593 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:23,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 511 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:00:23,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2024-11-13 13:00:23,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 467. [2024-11-13 13:00:23,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4172043010752688) internal successors, (659), 466 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:23,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 659 transitions. [2024-11-13 13:00:23,923 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 659 transitions. Word has length 54 [2024-11-13 13:00:23,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:23,923 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 659 transitions. [2024-11-13 13:00:23,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 9 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 13:00:23,924 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 659 transitions. [2024-11-13 13:00:23,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-13 13:00:23,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:23,924 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:23,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 13:00:23,925 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:23,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:23,925 INFO L85 PathProgramCache]: Analyzing trace with hash -728953036, now seen corresponding path program 1 times [2024-11-13 13:00:23,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:23,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710100038] [2024-11-13 13:00:23,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:23,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:24,393 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 13:00:24,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:24,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710100038] [2024-11-13 13:00:24,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710100038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:24,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:24,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 13:00:24,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968084747] [2024-11-13 13:00:24,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:24,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:00:24,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:24,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:00:24,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:00:24,396 INFO L87 Difference]: Start difference. First operand 467 states and 659 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:24,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:24,985 INFO L93 Difference]: Finished difference Result 1273 states and 1817 transitions. [2024-11-13 13:00:24,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 13:00:24,985 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-13 13:00:24,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:24,989 INFO L225 Difference]: With dead ends: 1273 [2024-11-13 13:00:24,989 INFO L226 Difference]: Without dead ends: 884 [2024-11-13 13:00:24,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-13 13:00:24,991 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 706 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:24,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 406 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 13:00:24,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2024-11-13 13:00:25,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 467. [2024-11-13 13:00:25,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4086021505376345) internal successors, (655), 466 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:25,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 655 transitions. [2024-11-13 13:00:25,011 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 655 transitions. Word has length 55 [2024-11-13 13:00:25,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:25,011 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 655 transitions. [2024-11-13 13:00:25,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:25,012 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 655 transitions. [2024-11-13 13:00:25,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-13 13:00:25,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:25,012 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 13:00:25,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 13:00:25,013 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:25,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:25,013 INFO L85 PathProgramCache]: Analyzing trace with hash -2014195720, now seen corresponding path program 1 times [2024-11-13 13:00:25,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:25,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640626785] [2024-11-13 13:00:25,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:25,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:26,696 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 13:00:26,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:26,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640626785] [2024-11-13 13:00:26,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640626785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:26,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:26,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-13 13:00:26,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737012287] [2024-11-13 13:00:26,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:26,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 13:00:26,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:26,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 13:00:26,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2024-11-13 13:00:26,699 INFO L87 Difference]: Start difference. First operand 467 states and 655 transitions. Second operand has 22 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 22 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 13:00:29,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:29,927 INFO L93 Difference]: Finished difference Result 1744 states and 2498 transitions. [2024-11-13 13:00:29,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-13 13:00:29,928 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 22 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 13:00:29,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:29,934 INFO L225 Difference]: With dead ends: 1744 [2024-11-13 13:00:29,934 INFO L226 Difference]: Without dead ends: 1653 [2024-11-13 13:00:29,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=356, Invalid=1450, Unknown=0, NotChecked=0, Total=1806 [2024-11-13 13:00:29,936 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 819 mSDsluCounter, 2345 mSDsCounter, 0 mSdLazyCounter, 1514 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 2523 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:29,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 2523 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1514 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 13:00:29,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2024-11-13 13:00:29,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 467. [2024-11-13 13:00:29,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4064516129032258) internal successors, (654), 466 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:29,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 654 transitions. [2024-11-13 13:00:29,960 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 654 transitions. Word has length 56 [2024-11-13 13:00:29,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:29,960 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 654 transitions. [2024-11-13 13:00:29,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 22 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 13:00:29,961 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 654 transitions. [2024-11-13 13:00:29,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-13 13:00:29,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:29,962 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 13:00:29,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 13:00:29,962 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:29,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:29,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1797287643, now seen corresponding path program 1 times [2024-11-13 13:00:29,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:29,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479002376] [2024-11-13 13:00:29,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:29,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:30,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:30,580 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 13:00:30,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:30,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479002376] [2024-11-13 13:00:30,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479002376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:30,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:30,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 13:00:30,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204405310] [2024-11-13 13:00:30,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:30,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 13:00:30,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:30,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 13:00:30,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:00:30,582 INFO L87 Difference]: Start difference. First operand 467 states and 654 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 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 13:00:31,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:31,432 INFO L93 Difference]: Finished difference Result 1796 states and 2579 transitions. [2024-11-13 13:00:31,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 13:00:31,433 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 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 13:00:31,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:31,439 INFO L225 Difference]: With dead ends: 1796 [2024-11-13 13:00:31,440 INFO L226 Difference]: Without dead ends: 1604 [2024-11-13 13:00:31,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-11-13 13:00:31,441 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 630 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:31,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 1020 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 13:00:31,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2024-11-13 13:00:31,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 446. [2024-11-13 13:00:31,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 444 states have (on average 1.40990990990991) internal successors, (626), 445 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:31,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 626 transitions. [2024-11-13 13:00:31,473 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 626 transitions. Word has length 56 [2024-11-13 13:00:31,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:31,474 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 626 transitions. [2024-11-13 13:00:31,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 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 13:00:31,474 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 626 transitions. [2024-11-13 13:00:31,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-13 13:00:31,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:31,475 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 13:00:31,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 13:00:31,475 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:31,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:31,476 INFO L85 PathProgramCache]: Analyzing trace with hash 929811098, now seen corresponding path program 1 times [2024-11-13 13:00:31,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:31,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934250493] [2024-11-13 13:00:31,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:31,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:32,819 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 13:00:32,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:32,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934250493] [2024-11-13 13:00:32,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934250493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:32,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:32,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-13 13:00:32,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067371819] [2024-11-13 13:00:32,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:32,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-13 13:00:32,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:32,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-13 13:00:32,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-11-13 13:00:32,822 INFO L87 Difference]: Start difference. First operand 446 states and 626 transitions. Second operand has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 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 13:00:35,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:35,113 INFO L93 Difference]: Finished difference Result 1780 states and 2557 transitions. [2024-11-13 13:00:35,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-13 13:00:35,114 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 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 13:00:35,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:35,120 INFO L225 Difference]: With dead ends: 1780 [2024-11-13 13:00:35,120 INFO L226 Difference]: Without dead ends: 1603 [2024-11-13 13:00:35,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=288, Invalid=1272, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 13:00:35,123 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 739 mSDsluCounter, 2070 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 2238 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:35,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 2238 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 13:00:35,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1603 states. [2024-11-13 13:00:35,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1603 to 456. [2024-11-13 13:00:35,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 454 states have (on average 1.4052863436123348) internal successors, (638), 455 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:35,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 638 transitions. [2024-11-13 13:00:35,154 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 638 transitions. Word has length 56 [2024-11-13 13:00:35,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:35,154 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 638 transitions. [2024-11-13 13:00:35,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 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 13:00:35,155 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 638 transitions. [2024-11-13 13:00:35,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-13 13:00:35,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:35,156 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 13:00:35,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 13:00:35,156 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:35,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:35,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1026982439, now seen corresponding path program 1 times [2024-11-13 13:00:35,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:35,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258594567] [2024-11-13 13:00:35,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:35,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:36,045 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 13:00:36,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:36,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258594567] [2024-11-13 13:00:36,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258594567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:36,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:36,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 13:00:36,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148466777] [2024-11-13 13:00:36,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:36,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 13:00:36,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:36,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 13:00:36,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:00:36,047 INFO L87 Difference]: Start difference. First operand 456 states and 638 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 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 13:00:37,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:37,112 INFO L93 Difference]: Finished difference Result 994 states and 1423 transitions. [2024-11-13 13:00:37,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 13:00:37,113 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 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 13:00:37,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:37,116 INFO L225 Difference]: With dead ends: 994 [2024-11-13 13:00:37,116 INFO L226 Difference]: Without dead ends: 817 [2024-11-13 13:00:37,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-13 13:00:37,119 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 460 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:37,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 1074 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:00:37,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2024-11-13 13:00:37,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 443. [2024-11-13 13:00:37,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 441 states have (on average 1.4058956916099774) internal successors, (620), 442 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:37,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 620 transitions. [2024-11-13 13:00:37,135 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 620 transitions. Word has length 56 [2024-11-13 13:00:37,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:37,136 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 620 transitions. [2024-11-13 13:00:37,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 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 13:00:37,136 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 620 transitions. [2024-11-13 13:00:37,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-13 13:00:37,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:37,138 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:37,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 13:00:37,138 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:37,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:37,139 INFO L85 PathProgramCache]: Analyzing trace with hash 788720349, now seen corresponding path program 1 times [2024-11-13 13:00:37,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:37,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666605315] [2024-11-13 13:00:37,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:37,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:37,895 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 13:00:37,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:37,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666605315] [2024-11-13 13:00:37,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666605315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:37,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:37,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 13:00:37,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804376504] [2024-11-13 13:00:37,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:37,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 13:00:37,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:37,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 13:00:37,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:00:37,898 INFO L87 Difference]: Start difference. First operand 443 states and 620 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 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 13:00:38,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:38,958 INFO L93 Difference]: Finished difference Result 978 states and 1402 transitions. [2024-11-13 13:00:38,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 13:00:38,958 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 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 13:00:38,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:38,961 INFO L225 Difference]: With dead ends: 978 [2024-11-13 13:00:38,961 INFO L226 Difference]: Without dead ends: 798 [2024-11-13 13:00:38,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-13 13:00:38,963 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 454 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:38,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 1112 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:00:38,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-13 13:00:38,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 420. [2024-11-13 13:00:38,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 419 states have (on average 1.4152744630071599) internal successors, (593), 419 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:38,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 593 transitions. [2024-11-13 13:00:38,978 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 593 transitions. Word has length 57 [2024-11-13 13:00:38,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:38,978 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 593 transitions. [2024-11-13 13:00:38,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 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 13:00:38,978 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 593 transitions. [2024-11-13 13:00:38,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-13 13:00:38,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:38,979 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:38,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 13:00:38,980 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:38,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:38,982 INFO L85 PathProgramCache]: Analyzing trace with hash -773234718, now seen corresponding path program 1 times [2024-11-13 13:00:38,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:38,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586243470] [2024-11-13 13:00:38,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:38,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:39,043 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 13:00:39,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:39,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586243470] [2024-11-13 13:00:39,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586243470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:39,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:39,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:00:39,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410408239] [2024-11-13 13:00:39,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:39,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:00:39,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:39,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:00:39,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:00:39,046 INFO L87 Difference]: Start difference. First operand 420 states and 593 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:39,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:39,077 INFO L93 Difference]: Finished difference Result 1086 states and 1560 transitions. [2024-11-13 13:00:39,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:00:39,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-13 13:00:39,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:39,081 INFO L225 Difference]: With dead ends: 1086 [2024-11-13 13:00:39,081 INFO L226 Difference]: Without dead ends: 724 [2024-11-13 13:00:39,082 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 13:00:39,083 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 49 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:39,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 276 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:00:39,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-11-13 13:00:39,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 722. [2024-11-13 13:00:39,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 721 states have (on average 1.3994452149791956) internal successors, (1009), 721 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:39,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1009 transitions. [2024-11-13 13:00:39,101 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1009 transitions. Word has length 76 [2024-11-13 13:00:39,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:39,102 INFO L471 AbstractCegarLoop]: Abstraction has 722 states and 1009 transitions. [2024-11-13 13:00:39,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:39,102 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1009 transitions. [2024-11-13 13:00:39,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-13 13:00:39,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:39,103 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:39,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 13:00:39,104 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:39,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:39,104 INFO L85 PathProgramCache]: Analyzing trace with hash -2013626748, now seen corresponding path program 1 times [2024-11-13 13:00:39,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:39,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87363504] [2024-11-13 13:00:39,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:39,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:39,288 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 13:00:39,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:39,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87363504] [2024-11-13 13:00:39,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87363504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:39,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:39,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:00:39,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35236691] [2024-11-13 13:00:39,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:39,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:00:39,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:39,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:00:39,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:00:39,290 INFO L87 Difference]: Start difference. First operand 722 states and 1009 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:39,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:39,318 INFO L93 Difference]: Finished difference Result 1807 states and 2544 transitions. [2024-11-13 13:00:39,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:00:39,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-13 13:00:39,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:39,323 INFO L225 Difference]: With dead ends: 1807 [2024-11-13 13:00:39,323 INFO L226 Difference]: Without dead ends: 1143 [2024-11-13 13:00:39,325 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 13:00:39,326 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 55 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 263 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 13:00:39,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 263 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:00:39,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2024-11-13 13:00:39,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 1069. [2024-11-13 13:00:39,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1069 states, 1068 states have (on average 1.392322097378277) internal successors, (1487), 1068 states have internal predecessors, (1487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:39,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1487 transitions. [2024-11-13 13:00:39,364 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1487 transitions. Word has length 77 [2024-11-13 13:00:39,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:39,365 INFO L471 AbstractCegarLoop]: Abstraction has 1069 states and 1487 transitions. [2024-11-13 13:00:39,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:39,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1487 transitions. [2024-11-13 13:00:39,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-13 13:00:39,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:39,369 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:39,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 13:00:39,369 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:39,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:39,370 INFO L85 PathProgramCache]: Analyzing trace with hash 31132410, now seen corresponding path program 1 times [2024-11-13 13:00:39,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:39,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875783961] [2024-11-13 13:00:39,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:39,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:39,544 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 13:00:39,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:39,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875783961] [2024-11-13 13:00:39,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875783961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:39,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:39,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:00:39,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837760409] [2024-11-13 13:00:39,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:39,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:00:39,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:39,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:00:39,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:00:39,548 INFO L87 Difference]: Start difference. First operand 1069 states and 1487 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 13:00:39,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:39,578 INFO L93 Difference]: Finished difference Result 2983 states and 4150 transitions. [2024-11-13 13:00:39,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:00:39,579 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 13:00:39,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:39,586 INFO L225 Difference]: With dead ends: 2983 [2024-11-13 13:00:39,586 INFO L226 Difference]: Without dead ends: 1972 [2024-11-13 13:00:39,588 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 13:00:39,588 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 48 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 261 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 13:00:39,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 261 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:00:39,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2024-11-13 13:00:39,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1862. [2024-11-13 13:00:39,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1862 states, 1861 states have (on average 1.3761418592154755) internal successors, (2561), 1861 states have internal predecessors, (2561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:39,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2561 transitions. [2024-11-13 13:00:39,731 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2561 transitions. Word has length 78 [2024-11-13 13:00:39,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:39,738 INFO L471 AbstractCegarLoop]: Abstraction has 1862 states and 2561 transitions. [2024-11-13 13:00:39,738 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 13:00:39,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2561 transitions. [2024-11-13 13:00:39,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-13 13:00:39,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:39,739 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:39,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 13:00:39,739 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:39,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:39,740 INFO L85 PathProgramCache]: Analyzing trace with hash 769651115, now seen corresponding path program 1 times [2024-11-13 13:00:39,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:39,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105691606] [2024-11-13 13:00:39,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:39,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:39,907 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 13:00:39,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:39,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105691606] [2024-11-13 13:00:39,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105691606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:39,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:39,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:00:39,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466747831] [2024-11-13 13:00:39,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:39,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:00:39,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:39,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:00:39,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:00:39,912 INFO L87 Difference]: Start difference. First operand 1862 states and 2561 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 13:00:39,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:39,946 INFO L93 Difference]: Finished difference Result 5254 states and 7183 transitions. [2024-11-13 13:00:39,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:00:39,947 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 13:00:39,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:39,958 INFO L225 Difference]: With dead ends: 5254 [2024-11-13 13:00:39,958 INFO L226 Difference]: Without dead ends: 3450 [2024-11-13 13:00:39,961 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 13:00:39,962 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 41 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 258 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 13:00:39,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 258 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:00:39,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3450 states. [2024-11-13 13:00:40,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3450 to 3232. [2024-11-13 13:00:40,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3232 states, 3231 states have (on average 1.3488084184463014) internal successors, (4358), 3231 states have internal predecessors, (4358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:40,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3232 states to 3232 states and 4358 transitions. [2024-11-13 13:00:40,045 INFO L78 Accepts]: Start accepts. Automaton has 3232 states and 4358 transitions. Word has length 79 [2024-11-13 13:00:40,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:40,045 INFO L471 AbstractCegarLoop]: Abstraction has 3232 states and 4358 transitions. [2024-11-13 13:00:40,045 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 13:00:40,046 INFO L276 IsEmpty]: Start isEmpty. Operand 3232 states and 4358 transitions. [2024-11-13 13:00:40,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-13 13:00:40,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:40,048 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:40,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 13:00:40,050 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:40,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:40,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1757386099, now seen corresponding path program 1 times [2024-11-13 13:00:40,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:40,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325254153] [2024-11-13 13:00:40,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:40,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:40,356 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 13:00:40,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:40,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325254153] [2024-11-13 13:00:40,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325254153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:40,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:40,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:00:40,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415810110] [2024-11-13 13:00:40,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:40,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:00:40,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:40,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:00:40,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:00:40,359 INFO L87 Difference]: Start difference. First operand 3232 states and 4358 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 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 13:00:40,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:40,408 INFO L93 Difference]: Finished difference Result 3330 states and 4487 transitions. [2024-11-13 13:00:40,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:00:40,409 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 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 13:00:40,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:40,421 INFO L225 Difference]: With dead ends: 3330 [2024-11-13 13:00:40,421 INFO L226 Difference]: Without dead ends: 3328 [2024-11-13 13:00:40,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:00:40,423 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:40,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 579 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:00:40,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3328 states. [2024-11-13 13:00:40,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3328 to 3328. [2024-11-13 13:00:40,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3328 states, 3327 states have (on average 1.3267207694619778) internal successors, (4414), 3327 states have internal predecessors, (4414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:40,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3328 states to 3328 states and 4414 transitions. [2024-11-13 13:00:40,502 INFO L78 Accepts]: Start accepts. Automaton has 3328 states and 4414 transitions. Word has length 80 [2024-11-13 13:00:40,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:40,502 INFO L471 AbstractCegarLoop]: Abstraction has 3328 states and 4414 transitions. [2024-11-13 13:00:40,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 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 13:00:40,502 INFO L276 IsEmpty]: Start isEmpty. Operand 3328 states and 4414 transitions. [2024-11-13 13:00:40,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-13 13:00:40,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:40,503 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:40,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 13:00:40,504 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:40,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:40,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1852306095, now seen corresponding path program 1 times [2024-11-13 13:00:40,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:40,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330088871] [2024-11-13 13:00:40,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:40,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:40,604 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 13:00:40,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:40,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330088871] [2024-11-13 13:00:40,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330088871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:40,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:40,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:00:40,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351411774] [2024-11-13 13:00:40,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:40,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:00:40,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:40,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:00:40,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:00:40,607 INFO L87 Difference]: Start difference. First operand 3328 states and 4414 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 13:00:40,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:40,648 INFO L93 Difference]: Finished difference Result 6724 states and 8936 transitions. [2024-11-13 13:00:40,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:00:40,648 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 13:00:40,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:40,663 INFO L225 Difference]: With dead ends: 6724 [2024-11-13 13:00:40,666 INFO L226 Difference]: Without dead ends: 3454 [2024-11-13 13:00:40,670 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 13:00:40,674 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 67 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:40,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 208 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:00:40,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2024-11-13 13:00:40,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 3452. [2024-11-13 13:00:40,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3451 states have (on average 1.3057084902926688) internal successors, (4506), 3451 states have internal predecessors, (4506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:40,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 4506 transitions. [2024-11-13 13:00:40,751 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 4506 transitions. Word has length 80 [2024-11-13 13:00:40,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:40,753 INFO L471 AbstractCegarLoop]: Abstraction has 3452 states and 4506 transitions. [2024-11-13 13:00:40,753 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 13:00:40,754 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 4506 transitions. [2024-11-13 13:00:40,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-13 13:00:40,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:40,756 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:40,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 13:00:40,757 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:40,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:40,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1815794868, now seen corresponding path program 1 times [2024-11-13 13:00:40,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:40,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537603408] [2024-11-13 13:00:40,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:40,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:41,394 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:00:41,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:41,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537603408] [2024-11-13 13:00:41,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537603408] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:00:41,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005789379] [2024-11-13 13:00:41,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:41,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:00:41,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:00:41,398 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:00:41,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:00:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:41,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 13:00:41,612 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:00:41,890 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 13:00:41,890 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:00:42,592 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 13:00:42,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005789379] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:00:42,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:00:42,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 18 [2024-11-13 13:00:42,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332237633] [2024-11-13 13:00:42,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:00:42,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 13:00:42,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:42,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 13:00:42,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-11-13 13:00:42,595 INFO L87 Difference]: Start difference. First operand 3452 states and 4506 transitions. Second operand has 18 states, 18 states have (on average 15.833333333333334) internal successors, (285), 18 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:46,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:46,573 INFO L93 Difference]: Finished difference Result 21661 states and 28405 transitions. [2024-11-13 13:00:46,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-13 13:00:46,573 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.833333333333334) internal successors, (285), 18 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-11-13 13:00:46,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:46,613 INFO L225 Difference]: With dead ends: 21661 [2024-11-13 13:00:46,613 INFO L226 Difference]: Without dead ends: 18267 [2024-11-13 13:00:46,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1457 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=920, Invalid=4192, Unknown=0, NotChecked=0, Total=5112 [2024-11-13 13:00:46,622 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 1809 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 1492 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1809 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:46,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1809 Valid, 1150 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1492 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 13:00:46,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18267 states. [2024-11-13 13:00:46,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18267 to 11627. [2024-11-13 13:00:46,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11627 states, 11626 states have (on average 1.31747806640289) internal successors, (15317), 11626 states have internal predecessors, (15317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:46,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11627 states to 11627 states and 15317 transitions. [2024-11-13 13:00:46,897 INFO L78 Accepts]: Start accepts. Automaton has 11627 states and 15317 transitions. Word has length 101 [2024-11-13 13:00:46,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:46,897 INFO L471 AbstractCegarLoop]: Abstraction has 11627 states and 15317 transitions. [2024-11-13 13:00:46,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.833333333333334) internal successors, (285), 18 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:46,897 INFO L276 IsEmpty]: Start isEmpty. Operand 11627 states and 15317 transitions. [2024-11-13 13:00:46,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-13 13:00:46,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:46,900 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:46,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 13:00:47,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-13 13:00:47,101 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:47,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:47,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1635937356, now seen corresponding path program 1 times [2024-11-13 13:00:47,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:47,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313341893] [2024-11-13 13:00:47,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:47,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:48,014 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:00:48,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:48,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313341893] [2024-11-13 13:00:48,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313341893] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:00:48,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169165061] [2024-11-13 13:00:48,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:48,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:00:48,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:00:48,017 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:00:48,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:00:48,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:48,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-13 13:00:48,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:00:51,569 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:00:51,569 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:00:54,722 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:00:54,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169165061] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:00:54,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:00:54,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 22, 21] total 56 [2024-11-13 13:00:54,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739124444] [2024-11-13 13:00:54,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:00:54,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-11-13 13:00:54,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:54,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-11-13 13:00:54,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=2851, Unknown=0, NotChecked=0, Total=3080 [2024-11-13 13:00:54,725 INFO L87 Difference]: Start difference. First operand 11627 states and 15317 transitions. Second operand has 56 states, 56 states have (on average 5.196428571428571) internal successors, (291), 56 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:08,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:02:08,371 INFO L93 Difference]: Finished difference Result 149837 states and 197613 transitions. [2024-11-13 13:02:08,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 481 states. [2024-11-13 13:02:08,373 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 5.196428571428571) internal successors, (291), 56 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2024-11-13 13:02:08,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:02:08,672 INFO L225 Difference]: With dead ends: 149837 [2024-11-13 13:02:08,672 INFO L226 Difference]: Without dead ends: 138285 [2024-11-13 13:02:08,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 697 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 533 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119136 ImplicationChecksByTransitivity, 62.3s TimeCoverageRelationStatistics Valid=19060, Invalid=266630, Unknown=0, NotChecked=0, Total=285690 [2024-11-13 13:02:08,746 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 11325 mSDsluCounter, 8665 mSDsCounter, 0 mSdLazyCounter, 13669 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11325 SdHoareTripleChecker+Valid, 8934 SdHoareTripleChecker+Invalid, 13919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 13669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:02:08,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11325 Valid, 8934 Invalid, 13919 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [250 Valid, 13669 Invalid, 0 Unknown, 0 Unchecked, 12.6s Time] [2024-11-13 13:02:08,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138285 states. [2024-11-13 13:02:10,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138285 to 39267. [2024-11-13 13:02:10,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39267 states, 39266 states have (on average 1.3178576885855446) internal successors, (51747), 39266 states have internal predecessors, (51747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:10,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39267 states to 39267 states and 51747 transitions. [2024-11-13 13:02:10,155 INFO L78 Accepts]: Start accepts. Automaton has 39267 states and 51747 transitions. Word has length 102 [2024-11-13 13:02:10,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:02:10,155 INFO L471 AbstractCegarLoop]: Abstraction has 39267 states and 51747 transitions. [2024-11-13 13:02:10,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 5.196428571428571) internal successors, (291), 56 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:10,156 INFO L276 IsEmpty]: Start isEmpty. Operand 39267 states and 51747 transitions. [2024-11-13 13:02:10,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 13:02:10,161 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:02:10,162 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:02:10,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 13:02:10,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-13 13:02:10,366 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:02:10,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:02:10,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1399222449, now seen corresponding path program 1 times [2024-11-13 13:02:10,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:02:10,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687823771] [2024-11-13 13:02:10,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:02:10,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:02:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:10,730 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:02:10,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:02:10,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687823771] [2024-11-13 13:02:10,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687823771] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:02:10,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497549324] [2024-11-13 13:02:10,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:02:10,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:02:10,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:02:10,735 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:02:10,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:02:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:10,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 13:02:10,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:02:12,872 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:02:12,873 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:02:14,200 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:02:14,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497549324] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:02:14,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:02:14,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 15, 15] total 33 [2024-11-13 13:02:14,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554587134] [2024-11-13 13:02:14,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:02:14,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-13 13:02:14,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:02:14,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-13 13:02:14,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=934, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 13:02:14,203 INFO L87 Difference]: Start difference. First operand 39267 states and 51747 transitions. Second operand has 34 states, 34 states have (on average 7.588235294117647) internal successors, (258), 33 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:19,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:02:19,403 INFO L93 Difference]: Finished difference Result 129564 states and 171193 transitions. [2024-11-13 13:02:19,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-11-13 13:02:19,403 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 7.588235294117647) internal successors, (258), 33 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-13 13:02:19,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:02:19,662 INFO L225 Difference]: With dead ends: 129564 [2024-11-13 13:02:19,662 INFO L226 Difference]: Without dead ends: 117109 [2024-11-13 13:02:19,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2627 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=2085, Invalid=7035, Unknown=0, NotChecked=0, Total=9120 [2024-11-13 13:02:19,707 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 2979 mSDsluCounter, 2098 mSDsCounter, 0 mSdLazyCounter, 2501 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2979 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 2562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:02:19,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2979 Valid, 2233 Invalid, 2562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2501 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-13 13:02:19,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117109 states. [2024-11-13 13:02:20,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117109 to 49152. [2024-11-13 13:02:20,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49152 states, 49151 states have (on average 1.3160668145103864) internal successors, (64686), 49151 states have internal predecessors, (64686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:21,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49152 states to 49152 states and 64686 transitions. [2024-11-13 13:02:21,068 INFO L78 Accepts]: Start accepts. Automaton has 49152 states and 64686 transitions. Word has length 103 [2024-11-13 13:02:21,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:02:21,068 INFO L471 AbstractCegarLoop]: Abstraction has 49152 states and 64686 transitions. [2024-11-13 13:02:21,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.588235294117647) internal successors, (258), 33 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:21,069 INFO L276 IsEmpty]: Start isEmpty. Operand 49152 states and 64686 transitions. [2024-11-13 13:02:21,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 13:02:21,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:02:21,077 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:02:21,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 13:02:21,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-13 13:02:21,278 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:02:21,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:02:21,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1444926327, now seen corresponding path program 1 times [2024-11-13 13:02:21,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:02:21,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198098958] [2024-11-13 13:02:21,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:02:21,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:02:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:22,102 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:02:22,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:02:22,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198098958] [2024-11-13 13:02:22,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198098958] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:02:22,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229129914] [2024-11-13 13:02:22,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:02:22,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:02:22,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:02:22,106 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:02:22,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 13:02:22,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:22,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-13 13:02:22,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:02:23,103 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:02:23,103 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:02:24,539 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:02:24,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229129914] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:02:24,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:02:24,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 26 [2024-11-13 13:02:24,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031158203] [2024-11-13 13:02:24,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:02:24,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-13 13:02:24,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:02:24,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-13 13:02:24,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=601, Unknown=0, NotChecked=0, Total=702 [2024-11-13 13:02:24,542 INFO L87 Difference]: Start difference. First operand 49152 states and 64686 transitions. Second operand has 27 states, 27 states have (on average 8.592592592592593) internal successors, (232), 26 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:25,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:02:25,922 INFO L93 Difference]: Finished difference Result 161927 states and 211859 transitions. [2024-11-13 13:02:25,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 13:02:25,922 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 8.592592592592593) internal successors, (232), 26 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-13 13:02:25,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:02:26,106 INFO L225 Difference]: With dead ends: 161927 [2024-11-13 13:02:26,107 INFO L226 Difference]: Without dead ends: 124477 [2024-11-13 13:02:26,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=440, Invalid=1540, Unknown=0, NotChecked=0, Total=1980 [2024-11-13 13:02:26,155 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 681 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:02:26,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 1009 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 13:02:26,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124477 states. [2024-11-13 13:02:27,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124477 to 102067. [2024-11-13 13:02:27,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102067 states, 102066 states have (on average 1.3069778378696137) internal successors, (133398), 102066 states have internal predecessors, (133398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:27,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102067 states to 102067 states and 133398 transitions. [2024-11-13 13:02:27,998 INFO L78 Accepts]: Start accepts. Automaton has 102067 states and 133398 transitions. Word has length 103 [2024-11-13 13:02:27,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:02:27,999 INFO L471 AbstractCegarLoop]: Abstraction has 102067 states and 133398 transitions. [2024-11-13 13:02:27,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 8.592592592592593) internal successors, (232), 26 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:27,999 INFO L276 IsEmpty]: Start isEmpty. Operand 102067 states and 133398 transitions. [2024-11-13 13:02:28,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 13:02:28,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:02:28,008 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:02:28,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 13:02:28,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-13 13:02:28,209 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:02:28,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:02:28,211 INFO L85 PathProgramCache]: Analyzing trace with hash 945568886, now seen corresponding path program 1 times [2024-11-13 13:02:28,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:02:28,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354900479] [2024-11-13 13:02:28,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:02:28,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:02:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:28,635 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:02:28,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:02:28,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354900479] [2024-11-13 13:02:28,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354900479] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:02:28,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638321707] [2024-11-13 13:02:28,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:02:28,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:02:28,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:02:28,640 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:02:28,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 13:02:28,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:28,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 13:02:28,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:02:29,878 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:02:29,880 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:02:30,825 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:02:30,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638321707] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:02:30,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:02:30,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-11-13 13:02:30,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359408645] [2024-11-13 13:02:30,826 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:02:30,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-13 13:02:30,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:02:30,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-13 13:02:30,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2024-11-13 13:02:30,828 INFO L87 Difference]: Start difference. First operand 102067 states and 133398 transitions. Second operand has 21 states, 21 states have (on average 12.571428571428571) internal successors, (264), 20 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:32,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:02:32,431 INFO L93 Difference]: Finished difference Result 182374 states and 239835 transitions. [2024-11-13 13:02:32,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 13:02:32,431 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 12.571428571428571) internal successors, (264), 20 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-13 13:02:32,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:02:32,623 INFO L225 Difference]: With dead ends: 182374 [2024-11-13 13:02:32,623 INFO L226 Difference]: Without dead ends: 156333 [2024-11-13 13:02:32,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=386, Invalid=1174, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 13:02:32,668 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 928 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:02:32,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 905 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 13:02:32,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156333 states. [2024-11-13 13:02:34,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156333 to 103423. [2024-11-13 13:02:34,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103423 states, 103422 states have (on average 1.3077585039933477) internal successors, (135251), 103422 states have internal predecessors, (135251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:34,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103423 states to 103423 states and 135251 transitions. [2024-11-13 13:02:34,632 INFO L78 Accepts]: Start accepts. Automaton has 103423 states and 135251 transitions. Word has length 103 [2024-11-13 13:02:34,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:02:34,632 INFO L471 AbstractCegarLoop]: Abstraction has 103423 states and 135251 transitions. [2024-11-13 13:02:34,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 12.571428571428571) internal successors, (264), 20 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:34,632 INFO L276 IsEmpty]: Start isEmpty. Operand 103423 states and 135251 transitions. [2024-11-13 13:02:34,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 13:02:34,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:02:34,640 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:02:34,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 13:02:34,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-13 13:02:34,845 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:02:34,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:02:34,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1362288286, now seen corresponding path program 1 times [2024-11-13 13:02:34,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:02:34,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411126549] [2024-11-13 13:02:34,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:02:34,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:02:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:35,270 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:02:35,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:02:35,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411126549] [2024-11-13 13:02:35,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411126549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:02:35,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:02:35,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:02:35,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122146184] [2024-11-13 13:02:35,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:02:35,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:02:35,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:02:35,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:02:35,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:02:35,275 INFO L87 Difference]: Start difference. First operand 103423 states and 135251 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:36,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:02:36,213 INFO L93 Difference]: Finished difference Result 206736 states and 270385 transitions. [2024-11-13 13:02:36,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:02:36,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-13 13:02:36,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:02:36,398 INFO L225 Difference]: With dead ends: 206736 [2024-11-13 13:02:36,399 INFO L226 Difference]: Without dead ends: 103425 [2024-11-13 13:02:36,459 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 13:02:36,460 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 56 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:02:36,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 229 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:02:36,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103425 states. [2024-11-13 13:02:37,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103425 to 99535. [2024-11-13 13:02:37,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99535 states, 99534 states have (on average 1.277864850201941) internal successors, (127191), 99534 states have internal predecessors, (127191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:38,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99535 states to 99535 states and 127191 transitions. [2024-11-13 13:02:38,113 INFO L78 Accepts]: Start accepts. Automaton has 99535 states and 127191 transitions. Word has length 103 [2024-11-13 13:02:38,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:02:38,113 INFO L471 AbstractCegarLoop]: Abstraction has 99535 states and 127191 transitions. [2024-11-13 13:02:38,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:38,113 INFO L276 IsEmpty]: Start isEmpty. Operand 99535 states and 127191 transitions. [2024-11-13 13:02:38,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 13:02:38,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:02:38,119 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:02:38,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-13 13:02:38,119 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:02:38,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:02:38,119 INFO L85 PathProgramCache]: Analyzing trace with hash 892045564, now seen corresponding path program 1 times [2024-11-13 13:02:38,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:02:38,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106368884] [2024-11-13 13:02:38,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:02:38,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:02:38,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:38,180 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-13 13:02:38,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:02:38,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106368884] [2024-11-13 13:02:38,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106368884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:02:38,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:02:38,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:02:38,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435083313] [2024-11-13 13:02:38,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:02:38,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:02:38,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:02:38,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:02:38,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:02:38,183 INFO L87 Difference]: Start difference. First operand 99535 states and 127191 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:38,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:02:38,930 INFO L93 Difference]: Finished difference Result 169513 states and 216638 transitions. [2024-11-13 13:02:38,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:02:38,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-13 13:02:38,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:02:38,996 INFO L225 Difference]: With dead ends: 169513 [2024-11-13 13:02:38,996 INFO L226 Difference]: Without dead ends: 70090 [2024-11-13 13:02:39,026 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 13:02:39,027 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 80 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:02:39,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 118 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:02:39,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70090 states. [2024-11-13 13:02:39,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70090 to 70090. [2024-11-13 13:02:39,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70090 states, 70089 states have (on average 1.2529212857937764) internal successors, (87816), 70089 states have internal predecessors, (87816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:40,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70090 states to 70090 states and 87816 transitions. [2024-11-13 13:02:40,132 INFO L78 Accepts]: Start accepts. Automaton has 70090 states and 87816 transitions. Word has length 103 [2024-11-13 13:02:40,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:02:40,132 INFO L471 AbstractCegarLoop]: Abstraction has 70090 states and 87816 transitions. [2024-11-13 13:02:40,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:40,132 INFO L276 IsEmpty]: Start isEmpty. Operand 70090 states and 87816 transitions. [2024-11-13 13:02:40,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 13:02:40,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:02:40,136 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:02:40,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-13 13:02:40,136 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:02:40,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:02:40,137 INFO L85 PathProgramCache]: Analyzing trace with hash 994530446, now seen corresponding path program 1 times [2024-11-13 13:02:40,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:02:40,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591678416] [2024-11-13 13:02:40,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:02:40,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:02:40,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:40,220 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-13 13:02:40,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:02:40,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591678416] [2024-11-13 13:02:40,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591678416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:02:40,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:02:40,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:02:40,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674310963] [2024-11-13 13:02:40,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:02:40,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:02:40,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:02:40,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:02:40,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:02:40,223 INFO L87 Difference]: Start difference. First operand 70090 states and 87816 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:40,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:02:40,658 INFO L93 Difference]: Finished difference Result 126821 states and 159088 transitions. [2024-11-13 13:02:40,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:02:40,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-13 13:02:40,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:02:40,724 INFO L225 Difference]: With dead ends: 126821 [2024-11-13 13:02:40,724 INFO L226 Difference]: Without dead ends: 56843 [2024-11-13 13:02:40,755 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 13:02:40,756 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 79 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:02:40,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 132 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:02:40,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56843 states. [2024-11-13 13:02:41,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56843 to 56843. [2024-11-13 13:02:41,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56843 states, 56842 states have (on average 1.2337004327785792) internal successors, (70126), 56842 states have internal predecessors, (70126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:41,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56843 states to 56843 states and 70126 transitions. [2024-11-13 13:02:41,685 INFO L78 Accepts]: Start accepts. Automaton has 56843 states and 70126 transitions. Word has length 104 [2024-11-13 13:02:41,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:02:41,685 INFO L471 AbstractCegarLoop]: Abstraction has 56843 states and 70126 transitions. [2024-11-13 13:02:41,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:41,685 INFO L276 IsEmpty]: Start isEmpty. Operand 56843 states and 70126 transitions. [2024-11-13 13:02:41,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 13:02:41,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:02:41,689 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:02:41,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-13 13:02:41,689 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:02:41,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:02:41,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1262740939, now seen corresponding path program 1 times [2024-11-13 13:02:41,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:02:41,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641824165] [2024-11-13 13:02:41,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:02:41,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:02:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:43,101 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:02:43,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:02:43,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641824165] [2024-11-13 13:02:43,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641824165] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:02:43,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122176792] [2024-11-13 13:02:43,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:02:43,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:02:43,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:02:43,105 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:02:43,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 13:02:43,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:43,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-13 13:02:43,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:02:45,180 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:02:45,180 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:02:46,662 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:02:46,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122176792] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:02:46,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:02:46,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 15] total 50 [2024-11-13 13:02:46,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750060687] [2024-11-13 13:02:46,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:02:46,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-13 13:02:46,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:02:46,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-13 13:02:46,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=2268, Unknown=0, NotChecked=0, Total=2450 [2024-11-13 13:02:46,664 INFO L87 Difference]: Start difference. First operand 56843 states and 70126 transitions. Second operand has 50 states, 50 states have (on average 5.48) internal successors, (274), 50 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:54,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:02:54,141 INFO L93 Difference]: Finished difference Result 189085 states and 233615 transitions. [2024-11-13 13:02:54,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2024-11-13 13:02:54,141 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 5.48) internal successors, (274), 50 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-13 13:02:54,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:02:54,271 INFO L225 Difference]: With dead ends: 189085 [2024-11-13 13:02:54,271 INFO L226 Difference]: Without dead ends: 139315 [2024-11-13 13:02:54,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3720 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=1836, Invalid=14420, Unknown=0, NotChecked=0, Total=16256 [2024-11-13 13:02:54,461 INFO L432 NwaCegarLoop]: 300 mSDtfsCounter, 2544 mSDsluCounter, 8718 mSDsCounter, 0 mSdLazyCounter, 4740 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2544 SdHoareTripleChecker+Valid, 9018 SdHoareTripleChecker+Invalid, 4774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 4740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:02:54,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2544 Valid, 9018 Invalid, 4774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 4740 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 13:02:54,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139315 states. [2024-11-13 13:02:55,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139315 to 89330. [2024-11-13 13:02:55,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89330 states, 89329 states have (on average 1.2339553784325359) internal successors, (110228), 89329 states have internal predecessors, (110228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:55,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89330 states to 89330 states and 110228 transitions. [2024-11-13 13:02:55,499 INFO L78 Accepts]: Start accepts. Automaton has 89330 states and 110228 transitions. Word has length 104 [2024-11-13 13:02:55,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:02:55,500 INFO L471 AbstractCegarLoop]: Abstraction has 89330 states and 110228 transitions. [2024-11-13 13:02:55,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 5.48) internal successors, (274), 50 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:55,500 INFO L276 IsEmpty]: Start isEmpty. Operand 89330 states and 110228 transitions. [2024-11-13 13:02:55,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 13:02:55,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:02:55,502 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:02:55,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-13 13:02:55,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:02:55,702 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:02:55,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:02:55,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1790700788, now seen corresponding path program 1 times [2024-11-13 13:02:55,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:02:55,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922078729] [2024-11-13 13:02:55,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:02:55,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:02:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:56,819 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:02:56,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:02:56,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922078729] [2024-11-13 13:02:56,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922078729] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:02:56,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914528670] [2024-11-13 13:02:56,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:02:56,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:02:56,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:02:56,822 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:02:56,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 13:02:57,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:57,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 13:02:57,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:02:58,234 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:02:58,234 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:02:59,287 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:02:59,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914528670] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:02:59,287 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:02:59,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 15, 14] total 46 [2024-11-13 13:02:59,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440046609] [2024-11-13 13:02:59,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:02:59,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-13 13:02:59,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:02:59,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-13 13:02:59,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1912, Unknown=0, NotChecked=0, Total=2070 [2024-11-13 13:02:59,289 INFO L87 Difference]: Start difference. First operand 89330 states and 110228 transitions. Second operand has 46 states, 46 states have (on average 6.217391304347826) internal successors, (286), 46 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:03:07,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:03:07,882 INFO L93 Difference]: Finished difference Result 155128 states and 191427 transitions. [2024-11-13 13:03:07,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2024-11-13 13:03:07,883 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 6.217391304347826) internal successors, (286), 46 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-13 13:03:07,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:03:07,971 INFO L225 Difference]: With dead ends: 155128 [2024-11-13 13:03:07,971 INFO L226 Difference]: Without dead ends: 101714 [2024-11-13 13:03:07,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4262 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=2606, Invalid=15754, Unknown=0, NotChecked=0, Total=18360 [2024-11-13 13:03:07,999 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 2257 mSDsluCounter, 6420 mSDsCounter, 0 mSdLazyCounter, 3533 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2257 SdHoareTripleChecker+Valid, 6698 SdHoareTripleChecker+Invalid, 3553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 3533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:03:07,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2257 Valid, 6698 Invalid, 3553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 3533 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 13:03:08,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101714 states. [2024-11-13 13:03:08,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101714 to 81341. [2024-11-13 13:03:09,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81341 states, 81340 states have (on average 1.2300098352594049) internal successors, (100049), 81340 states have internal predecessors, (100049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:03:09,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81341 states to 81341 states and 100049 transitions. [2024-11-13 13:03:09,092 INFO L78 Accepts]: Start accepts. Automaton has 81341 states and 100049 transitions. Word has length 104 [2024-11-13 13:03:09,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:03:09,093 INFO L471 AbstractCegarLoop]: Abstraction has 81341 states and 100049 transitions. [2024-11-13 13:03:09,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 6.217391304347826) internal successors, (286), 46 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:03:09,093 INFO L276 IsEmpty]: Start isEmpty. Operand 81341 states and 100049 transitions. [2024-11-13 13:03:09,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 13:03:09,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:03:09,095 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:03:09,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-13 13:03:09,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-13 13:03:09,295 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:03:09,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:03:09,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1757508947, now seen corresponding path program 1 times [2024-11-13 13:03:09,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:03:09,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120618544] [2024-11-13 13:03:09,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:03:09,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:03:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:09,907 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:03:09,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:03:09,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120618544] [2024-11-13 13:03:09,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120618544] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:03:09,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652239085] [2024-11-13 13:03:09,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:03:09,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:03:09,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:03:09,910 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:03:09,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 13:03:10,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:10,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 13:03:10,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:03:11,790 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:03:11,790 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:03:12,739 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:03:12,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652239085] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:03:12,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:03:12,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 13] total 38 [2024-11-13 13:03:12,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217868827] [2024-11-13 13:03:12,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:03:12,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-13 13:03:12,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:03:12,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-13 13:03:12,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1281, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 13:03:12,741 INFO L87 Difference]: Start difference. First operand 81341 states and 100049 transitions. Second operand has 38 states, 38 states have (on average 7.815789473684211) internal successors, (297), 38 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:03:26,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:03:26,708 INFO L93 Difference]: Finished difference Result 185242 states and 226772 transitions. [2024-11-13 13:03:26,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2024-11-13 13:03:26,709 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 7.815789473684211) internal successors, (297), 38 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-13 13:03:26,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:03:26,829 INFO L225 Difference]: With dead ends: 185242 [2024-11-13 13:03:26,829 INFO L226 Difference]: Without dead ends: 134823 [2024-11-13 13:03:26,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9480 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=4084, Invalid=25672, Unknown=0, NotChecked=0, Total=29756 [2024-11-13 13:03:26,856 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 2786 mSDsluCounter, 4482 mSDsCounter, 0 mSdLazyCounter, 6786 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2786 SdHoareTripleChecker+Valid, 4701 SdHoareTripleChecker+Invalid, 6851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 6786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:03:26,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2786 Valid, 4701 Invalid, 6851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 6786 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-13 13:03:26,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134823 states. [2024-11-13 13:03:27,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134823 to 73306. [2024-11-13 13:03:27,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73306 states, 73305 states have (on average 1.2202305436191256) internal successors, (89449), 73305 states have internal predecessors, (89449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:03:27,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73306 states to 73306 states and 89449 transitions. [2024-11-13 13:03:27,879 INFO L78 Accepts]: Start accepts. Automaton has 73306 states and 89449 transitions. Word has length 104 [2024-11-13 13:03:27,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:03:27,879 INFO L471 AbstractCegarLoop]: Abstraction has 73306 states and 89449 transitions. [2024-11-13 13:03:27,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 7.815789473684211) internal successors, (297), 38 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:03:27,880 INFO L276 IsEmpty]: Start isEmpty. Operand 73306 states and 89449 transitions. [2024-11-13 13:03:27,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 13:03:27,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:03:27,882 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:03:27,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 13:03:28,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:03:28,082 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:03:28,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:03:28,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1954021763, now seen corresponding path program 1 times [2024-11-13 13:03:28,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:03:28,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845917505] [2024-11-13 13:03:28,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:03:28,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:03:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:30,024 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:03:30,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:03:30,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845917505] [2024-11-13 13:03:30,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845917505] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:03:30,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835589816] [2024-11-13 13:03:30,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:03:30,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:03:30,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:03:30,027 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:03:30,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 13:03:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:30,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 13:03:30,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:03:32,242 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:03:32,243 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:03:33,333 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:03:33,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835589816] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:03:33,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:03:33,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 16, 14] total 51 [2024-11-13 13:03:33,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295871984] [2024-11-13 13:03:33,334 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:03:33,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-13 13:03:33,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:03:33,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-13 13:03:33,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=2379, Unknown=0, NotChecked=0, Total=2550 [2024-11-13 13:03:33,335 INFO L87 Difference]: Start difference. First operand 73306 states and 89449 transitions. Second operand has 51 states, 51 states have (on average 5.568627450980392) internal successors, (284), 51 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:03:41,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:03:41,969 INFO L93 Difference]: Finished difference Result 104869 states and 128047 transitions. [2024-11-13 13:03:41,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-13 13:03:41,969 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 5.568627450980392) internal successors, (284), 51 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-13 13:03:41,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:03:42,065 INFO L225 Difference]: With dead ends: 104869 [2024-11-13 13:03:42,065 INFO L226 Difference]: Without dead ends: 87352 [2024-11-13 13:03:42,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2406 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=1662, Invalid=9894, Unknown=0, NotChecked=0, Total=11556 [2024-11-13 13:03:42,089 INFO L432 NwaCegarLoop]: 308 mSDtfsCounter, 4055 mSDsluCounter, 7906 mSDsCounter, 0 mSdLazyCounter, 3941 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4055 SdHoareTripleChecker+Valid, 8214 SdHoareTripleChecker+Invalid, 3978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 3941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:03:42,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4055 Valid, 8214 Invalid, 3978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 3941 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-13 13:03:42,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87352 states. [2024-11-13 13:03:42,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87352 to 79979. [2024-11-13 13:03:42,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79979 states, 79978 states have (on average 1.2187101452899547) internal successors, (97470), 79978 states have internal predecessors, (97470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:03:43,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79979 states to 79979 states and 97470 transitions. [2024-11-13 13:03:43,250 INFO L78 Accepts]: Start accepts. Automaton has 79979 states and 97470 transitions. Word has length 105 [2024-11-13 13:03:43,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:03:43,251 INFO L471 AbstractCegarLoop]: Abstraction has 79979 states and 97470 transitions. [2024-11-13 13:03:43,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 5.568627450980392) internal successors, (284), 51 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:03:43,251 INFO L276 IsEmpty]: Start isEmpty. Operand 79979 states and 97470 transitions. [2024-11-13 13:03:43,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 13:03:43,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:03:43,253 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, 1, 1, 1, 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 13:03:43,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 13:03:43,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:03:43,454 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:03:43,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:03:43,454 INFO L85 PathProgramCache]: Analyzing trace with hash -26883123, now seen corresponding path program 1 times [2024-11-13 13:03:43,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:03:43,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737561846] [2024-11-13 13:03:43,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:03:43,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:03:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:43,612 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 13:03:43,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:03:43,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737561846] [2024-11-13 13:03:43,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737561846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:03:43,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:03:43,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:03:43,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273876802] [2024-11-13 13:03:43,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:03:43,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:03:43,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:03:43,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:03:43,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:03:43,613 INFO L87 Difference]: Start difference. First operand 79979 states and 97470 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:03:43,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:03:43,810 INFO L93 Difference]: Finished difference Result 115503 states and 140757 transitions. [2024-11-13 13:03:43,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:03:43,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-13 13:03:43,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:03:43,840 INFO L225 Difference]: With dead ends: 115503 [2024-11-13 13:03:43,840 INFO L226 Difference]: Without dead ends: 35718 [2024-11-13 13:03:43,865 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 13:03:43,866 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 44 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:03:43,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 212 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:03:43,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35718 states. [2024-11-13 13:03:44,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35718 to 33466. [2024-11-13 13:03:44,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33466 states, 33465 states have (on average 1.196294636187061) internal successors, (40034), 33465 states have internal predecessors, (40034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:03:44,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33466 states to 33466 states and 40034 transitions. [2024-11-13 13:03:44,194 INFO L78 Accepts]: Start accepts. Automaton has 33466 states and 40034 transitions. Word has length 105 [2024-11-13 13:03:44,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:03:44,195 INFO L471 AbstractCegarLoop]: Abstraction has 33466 states and 40034 transitions. [2024-11-13 13:03:44,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:03:44,195 INFO L276 IsEmpty]: Start isEmpty. Operand 33466 states and 40034 transitions. [2024-11-13 13:03:44,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 13:03:44,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:03:44,197 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:03:44,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-13 13:03:44,198 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:03:44,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:03:44,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1388502445, now seen corresponding path program 1 times [2024-11-13 13:03:44,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:03:44,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18768095] [2024-11-13 13:03:44,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:03:44,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:03:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:44,251 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 13:03:44,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:03:44,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18768095] [2024-11-13 13:03:44,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18768095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:03:44,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:03:44,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:03:44,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765082229] [2024-11-13 13:03:44,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:03:44,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:03:44,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:03:44,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:03:44,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:03:44,253 INFO L87 Difference]: Start difference. First operand 33466 states and 40034 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:03:44,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:03:44,371 INFO L93 Difference]: Finished difference Result 56598 states and 67890 transitions. [2024-11-13 13:03:44,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:03:44,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-13 13:03:44,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:03:44,390 INFO L225 Difference]: With dead ends: 56598 [2024-11-13 13:03:44,390 INFO L226 Difference]: Without dead ends: 23406 [2024-11-13 13:03:44,402 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 13:03:44,402 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 75 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:03:44,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 96 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:03:44,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23406 states. [2024-11-13 13:03:44,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23406 to 23406. [2024-11-13 13:03:44,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23406 states, 23405 states have (on average 1.178765221106601) internal successors, (27589), 23405 states have internal predecessors, (27589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:03:44,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23406 states to 23406 states and 27589 transitions. [2024-11-13 13:03:44,798 INFO L78 Accepts]: Start accepts. Automaton has 23406 states and 27589 transitions. Word has length 105 [2024-11-13 13:03:44,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:03:44,798 INFO L471 AbstractCegarLoop]: Abstraction has 23406 states and 27589 transitions. [2024-11-13 13:03:44,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:03:44,798 INFO L276 IsEmpty]: Start isEmpty. Operand 23406 states and 27589 transitions. [2024-11-13 13:03:44,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 13:03:44,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:03:44,800 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:03:44,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-13 13:03:44,800 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:03:44,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:03:44,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1882751161, now seen corresponding path program 1 times [2024-11-13 13:03:44,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:03:44,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104530178] [2024-11-13 13:03:44,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:03:44,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:03:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:45,773 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:03:45,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:03:45,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104530178] [2024-11-13 13:03:45,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104530178] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:03:45,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657495148] [2024-11-13 13:03:45,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:03:45,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:03:45,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:03:45,776 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:03:45,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 13:03:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:45,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-13 13:03:45,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:03:47,157 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:03:47,157 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:03:48,228 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:03:48,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657495148] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:03:48,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:03:48,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 13] total 38 [2024-11-13 13:03:48,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903606530] [2024-11-13 13:03:48,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:03:48,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-13 13:03:48,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:03:48,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-13 13:03:48,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1267, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 13:03:48,231 INFO L87 Difference]: Start difference. First operand 23406 states and 27589 transitions. Second operand has 38 states, 38 states have (on average 7.315789473684211) internal successors, (278), 38 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:03:49,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:03:49,724 INFO L93 Difference]: Finished difference Result 36699 states and 43532 transitions. [2024-11-13 13:03:49,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-13 13:03:49,725 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 7.315789473684211) internal successors, (278), 38 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-13 13:03:49,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:03:49,746 INFO L225 Difference]: With dead ends: 36699 [2024-11-13 13:03:49,746 INFO L226 Difference]: Without dead ends: 29198 [2024-11-13 13:03:49,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 190 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 464 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=356, Invalid=2194, Unknown=0, NotChecked=0, Total=2550 [2024-11-13 13:03:49,754 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 741 mSDsluCounter, 3604 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 3811 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:03:49,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 3811 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 13:03:49,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29198 states. [2024-11-13 13:03:49,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29198 to 26002. [2024-11-13 13:03:49,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26002 states, 26001 states have (on average 1.1773777931618015) internal successors, (30613), 26001 states have internal predecessors, (30613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:03:49,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26002 states to 26002 states and 30613 transitions. [2024-11-13 13:03:49,965 INFO L78 Accepts]: Start accepts. Automaton has 26002 states and 30613 transitions. Word has length 105 [2024-11-13 13:03:49,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:03:49,966 INFO L471 AbstractCegarLoop]: Abstraction has 26002 states and 30613 transitions. [2024-11-13 13:03:49,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 7.315789473684211) internal successors, (278), 38 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:03:49,966 INFO L276 IsEmpty]: Start isEmpty. Operand 26002 states and 30613 transitions. [2024-11-13 13:03:49,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 13:03:49,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:03:49,968 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:03:49,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 13:03:50,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:03:50,168 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:03:50,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:03:50,170 INFO L85 PathProgramCache]: Analyzing trace with hash -150515526, now seen corresponding path program 1 times [2024-11-13 13:03:50,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:03:50,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791793496] [2024-11-13 13:03:50,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:03:50,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:03:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:50,557 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:03:50,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:03:50,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791793496] [2024-11-13 13:03:50,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791793496] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:03:50,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929720264] [2024-11-13 13:03:50,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:03:50,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:03:50,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:03:50,561 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:03:50,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 13:03:50,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:50,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 13:03:50,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:03:51,620 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:03:51,621 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:03:52,407 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:03:52,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929720264] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:03:52,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:03:52,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 22 [2024-11-13 13:03:52,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314210645] [2024-11-13 13:03:52,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:03:52,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 13:03:52,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:03:52,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 13:03:52,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2024-11-13 13:03:52,410 INFO L87 Difference]: Start difference. First operand 26002 states and 30613 transitions. Second operand has 22 states, 22 states have (on average 11.863636363636363) internal successors, (261), 22 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:03:53,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:03:53,813 INFO L93 Difference]: Finished difference Result 45428 states and 53680 transitions. [2024-11-13 13:03:53,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 13:03:53,813 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.863636363636363) internal successors, (261), 22 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-13 13:03:53,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:03:53,842 INFO L225 Difference]: With dead ends: 45428 [2024-11-13 13:03:53,842 INFO L226 Difference]: Without dead ends: 29470 [2024-11-13 13:03:53,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=281, Invalid=1051, Unknown=0, NotChecked=0, Total=1332 [2024-11-13 13:03:53,853 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 563 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:03:53,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 1108 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 13:03:53,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29470 states. [2024-11-13 13:03:54,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29470 to 26906. [2024-11-13 13:03:54,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26906 states, 26905 states have (on average 1.1789630180263893) internal successors, (31720), 26905 states have internal predecessors, (31720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:03:54,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26906 states to 26906 states and 31720 transitions. [2024-11-13 13:03:54,302 INFO L78 Accepts]: Start accepts. Automaton has 26906 states and 31720 transitions. Word has length 105 [2024-11-13 13:03:54,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:03:54,302 INFO L471 AbstractCegarLoop]: Abstraction has 26906 states and 31720 transitions. [2024-11-13 13:03:54,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.863636363636363) internal successors, (261), 22 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:03:54,302 INFO L276 IsEmpty]: Start isEmpty. Operand 26906 states and 31720 transitions. [2024-11-13 13:03:54,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 13:03:54,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:03:54,303 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:03:54,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-13 13:03:54,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-13 13:03:54,504 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:03:54,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:03:54,505 INFO L85 PathProgramCache]: Analyzing trace with hash -528362802, now seen corresponding path program 1 times [2024-11-13 13:03:54,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:03:54,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086453402] [2024-11-13 13:03:54,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:03:54,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:03:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:55,115 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:03:55,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:03:55,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086453402] [2024-11-13 13:03:55,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086453402] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:03:55,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450395862] [2024-11-13 13:03:55,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:03:55,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:03:55,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:03:55,118 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:03:55,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 13:03:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:03:55,337 INFO L255 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-13 13:03:55,345 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:03:58,355 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:03:58,355 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:04:01,459 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:04:01,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450395862] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:04:01,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:04:01,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 23, 22] total 57 [2024-11-13 13:04:01,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923850369] [2024-11-13 13:04:01,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:04:01,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-11-13 13:04:01,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:04:01,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-11-13 13:04:01,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=360, Invalid=2832, Unknown=0, NotChecked=0, Total=3192 [2024-11-13 13:04:01,461 INFO L87 Difference]: Start difference. First operand 26906 states and 31720 transitions. Second operand has 57 states, 57 states have (on average 4.771929824561403) internal successors, (272), 57 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:04:14,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:04:14,045 INFO L93 Difference]: Finished difference Result 41516 states and 49035 transitions. [2024-11-13 13:04:14,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2024-11-13 13:04:14,046 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 4.771929824561403) internal successors, (272), 57 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-13 13:04:14,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:04:14,094 INFO L225 Difference]: With dead ends: 41516 [2024-11-13 13:04:14,095 INFO L226 Difference]: Without dead ends: 33448 [2024-11-13 13:04:14,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7545 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=2918, Invalid=21574, Unknown=0, NotChecked=0, Total=24492 [2024-11-13 13:04:14,110 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 2545 mSDsluCounter, 8117 mSDsCounter, 0 mSdLazyCounter, 5133 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2545 SdHoareTripleChecker+Valid, 8407 SdHoareTripleChecker+Invalid, 5176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 5133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:04:14,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2545 Valid, 8407 Invalid, 5176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 5133 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-13 13:04:14,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33448 states. [2024-11-13 13:04:14,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33448 to 25575. [2024-11-13 13:04:14,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25575 states, 25574 states have (on average 1.1798310784390396) internal successors, (30173), 25574 states have internal predecessors, (30173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:04:14,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25575 states to 25575 states and 30173 transitions. [2024-11-13 13:04:14,500 INFO L78 Accepts]: Start accepts. Automaton has 25575 states and 30173 transitions. Word has length 105 [2024-11-13 13:04:14,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:04:14,500 INFO L471 AbstractCegarLoop]: Abstraction has 25575 states and 30173 transitions. [2024-11-13 13:04:14,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 4.771929824561403) internal successors, (272), 57 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:04:14,500 INFO L276 IsEmpty]: Start isEmpty. Operand 25575 states and 30173 transitions. [2024-11-13 13:04:14,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 13:04:14,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:04:14,502 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:04:14,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-13 13:04:14,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:04:14,702 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:04:14,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:04:14,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1292346169, now seen corresponding path program 1 times [2024-11-13 13:04:14,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:04:14,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052804237] [2024-11-13 13:04:14,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:04:14,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:04:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:15,670 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:04:15,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:04:15,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052804237] [2024-11-13 13:04:15,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052804237] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:04:15,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518772375] [2024-11-13 13:04:15,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:04:15,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:04:15,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:04:15,673 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:04:15,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 13:04:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:15,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 13:04:15,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:04:16,628 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:04:16,628 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:04:17,454 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:04:17,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518772375] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:04:17,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:04:17,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 11] total 34 [2024-11-13 13:04:17,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62126082] [2024-11-13 13:04:17,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:04:17,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-13 13:04:17,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:04:17,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-13 13:04:17,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1028, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 13:04:17,456 INFO L87 Difference]: Start difference. First operand 25575 states and 30173 transitions. Second operand has 34 states, 34 states have (on average 8.088235294117647) internal successors, (275), 34 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:04:19,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:04:19,860 INFO L93 Difference]: Finished difference Result 29156 states and 34431 transitions. [2024-11-13 13:04:19,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-13 13:04:19,861 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 8.088235294117647) internal successors, (275), 34 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-13 13:04:19,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:04:19,875 INFO L225 Difference]: With dead ends: 29156 [2024-11-13 13:04:19,875 INFO L226 Difference]: Without dead ends: 20097 [2024-11-13 13:04:19,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 696 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=393, Invalid=3767, Unknown=0, NotChecked=0, Total=4160 [2024-11-13 13:04:19,880 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 670 mSDsluCounter, 5791 mSDsCounter, 0 mSdLazyCounter, 2015 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 6036 SdHoareTripleChecker+Invalid, 2024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:04:19,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 6036 Invalid, 2024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2015 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 13:04:19,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20097 states. [2024-11-13 13:04:19,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20097 to 19879. [2024-11-13 13:04:20,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19879 states, 19878 states have (on average 1.1753697555086025) internal successors, (23364), 19878 states have internal predecessors, (23364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:04:20,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19879 states to 19879 states and 23364 transitions. [2024-11-13 13:04:20,027 INFO L78 Accepts]: Start accepts. Automaton has 19879 states and 23364 transitions. Word has length 105 [2024-11-13 13:04:20,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:04:20,027 INFO L471 AbstractCegarLoop]: Abstraction has 19879 states and 23364 transitions. [2024-11-13 13:04:20,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 8.088235294117647) internal successors, (275), 34 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:04:20,027 INFO L276 IsEmpty]: Start isEmpty. Operand 19879 states and 23364 transitions. [2024-11-13 13:04:20,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-13 13:04:20,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:04:20,028 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, 1, 1, 1, 1, 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 13:04:20,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-13 13:04:20,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-13 13:04:20,229 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:04:20,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:04:20,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1976505579, now seen corresponding path program 1 times [2024-11-13 13:04:20,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:04:20,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993526419] [2024-11-13 13:04:20,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:04:20,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:04:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:20,307 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 13:04:20,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:04:20,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993526419] [2024-11-13 13:04:20,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993526419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:04:20,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:04:20,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:04:20,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466606146] [2024-11-13 13:04:20,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:04:20,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:04:20,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:04:20,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:04:20,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:04:20,308 INFO L87 Difference]: Start difference. First operand 19879 states and 23364 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:04:20,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:04:20,346 INFO L93 Difference]: Finished difference Result 24217 states and 28354 transitions. [2024-11-13 13:04:20,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:04:20,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-13 13:04:20,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:04:20,350 INFO L225 Difference]: With dead ends: 24217 [2024-11-13 13:04:20,350 INFO L226 Difference]: Without dead ends: 4825 [2024-11-13 13:04:20,354 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 13:04:20,355 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 39 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:04:20,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 194 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:04:20,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4825 states. [2024-11-13 13:04:20,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4825 to 4823. [2024-11-13 13:04:20,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4823 states, 4822 states have (on average 1.1248444628784737) internal successors, (5424), 4822 states have internal predecessors, (5424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:04:20,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4823 states to 4823 states and 5424 transitions. [2024-11-13 13:04:20,388 INFO L78 Accepts]: Start accepts. Automaton has 4823 states and 5424 transitions. Word has length 106 [2024-11-13 13:04:20,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:04:20,389 INFO L471 AbstractCegarLoop]: Abstraction has 4823 states and 5424 transitions. [2024-11-13 13:04:20,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:04:20,389 INFO L276 IsEmpty]: Start isEmpty. Operand 4823 states and 5424 transitions. [2024-11-13 13:04:20,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-13 13:04:20,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:04:20,389 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:04:20,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-13 13:04:20,390 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:04:20,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:04:20,390 INFO L85 PathProgramCache]: Analyzing trace with hash 384046205, now seen corresponding path program 1 times [2024-11-13 13:04:20,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:04:20,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115534632] [2024-11-13 13:04:20,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:04:20,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:04:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:21,168 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:04:21,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:04:21,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115534632] [2024-11-13 13:04:21,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115534632] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:04:21,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662577291] [2024-11-13 13:04:21,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:04:21,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:04:21,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:04:21,171 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:04:21,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 13:04:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:21,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-13 13:04:21,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:04:23,746 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:04:23,746 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:04:27,329 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:04:27,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662577291] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:04:27,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:04:27,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 23, 23] total 58 [2024-11-13 13:04:27,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396593015] [2024-11-13 13:04:27,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:04:27,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-13 13:04:27,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:04:27,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-13 13:04:27,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=2980, Unknown=0, NotChecked=0, Total=3306 [2024-11-13 13:04:27,331 INFO L87 Difference]: Start difference. First operand 4823 states and 5424 transitions. Second operand has 58 states, 58 states have (on average 4.879310344827586) internal successors, (283), 58 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:04:33,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:04:33,507 INFO L93 Difference]: Finished difference Result 6829 states and 7703 transitions. [2024-11-13 13:04:33,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-13 13:04:33,508 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 4.879310344827586) internal successors, (283), 58 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-13 13:04:33,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:04:33,512 INFO L225 Difference]: With dead ends: 6829 [2024-11-13 13:04:33,512 INFO L226 Difference]: Without dead ends: 5221 [2024-11-13 13:04:33,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3005 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=1240, Invalid=9890, Unknown=0, NotChecked=0, Total=11130 [2024-11-13 13:04:33,515 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 1413 mSDsluCounter, 4963 mSDsCounter, 0 mSdLazyCounter, 2586 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1413 SdHoareTripleChecker+Valid, 5181 SdHoareTripleChecker+Invalid, 2632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:04:33,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1413 Valid, 5181 Invalid, 2632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2586 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 13:04:33,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5221 states. [2024-11-13 13:04:33,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5221 to 4941. [2024-11-13 13:04:33,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4941 states, 4940 states have (on average 1.1236842105263158) internal successors, (5551), 4940 states have internal predecessors, (5551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:04:33,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4941 states to 4941 states and 5551 transitions. [2024-11-13 13:04:33,570 INFO L78 Accepts]: Start accepts. Automaton has 4941 states and 5551 transitions. Word has length 106 [2024-11-13 13:04:33,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:04:33,571 INFO L471 AbstractCegarLoop]: Abstraction has 4941 states and 5551 transitions. [2024-11-13 13:04:33,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 4.879310344827586) internal successors, (283), 58 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:04:33,571 INFO L276 IsEmpty]: Start isEmpty. Operand 4941 states and 5551 transitions. [2024-11-13 13:04:33,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 13:04:33,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:04:33,573 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:04:33,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 13:04:33,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:04:33,773 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:04:33,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:04:33,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1769850430, now seen corresponding path program 1 times [2024-11-13 13:04:33,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:04:33,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983331832] [2024-11-13 13:04:33,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:04:33,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:04:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:35,342 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:04:35,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:04:35,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983331832] [2024-11-13 13:04:35,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983331832] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:04:35,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447340998] [2024-11-13 13:04:35,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:04:35,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:04:35,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:04:35,344 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:04:35,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 13:04:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:04:35,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-13 13:04:35,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:04:41,022 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:04:41,022 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:04:49,643 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:04:49,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447340998] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:04:49,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:04:49,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 30, 29] total 82 [2024-11-13 13:04:49,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688998984] [2024-11-13 13:04:49,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:04:49,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2024-11-13 13:04:49,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:04:49,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2024-11-13 13:04:49,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=489, Invalid=6153, Unknown=0, NotChecked=0, Total=6642 [2024-11-13 13:04:49,646 INFO L87 Difference]: Start difference. First operand 4941 states and 5551 transitions. Second operand has 82 states, 82 states have (on average 3.548780487804878) internal successors, (291), 82 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:07:05,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:07:05,831 INFO L93 Difference]: Finished difference Result 10230 states and 11535 transitions. [2024-11-13 13:07:05,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2024-11-13 13:07:05,832 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 82 states have (on average 3.548780487804878) internal successors, (291), 82 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-11-13 13:07:05,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:07:05,837 INFO L225 Difference]: With dead ends: 10230 [2024-11-13 13:07:05,837 INFO L226 Difference]: Without dead ends: 8582 [2024-11-13 13:07:05,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 157 SyntacticMatches, 1 SemanticMatches, 334 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40286 ImplicationChecksByTransitivity, 128.8s TimeCoverageRelationStatistics Valid=13620, Invalid=98940, Unknown=0, NotChecked=0, Total=112560 [2024-11-13 13:07:05,843 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 7246 mSDsluCounter, 9587 mSDsCounter, 0 mSdLazyCounter, 10709 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7246 SdHoareTripleChecker+Valid, 9859 SdHoareTripleChecker+Invalid, 11060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 10709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:07:05,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7246 Valid, 9859 Invalid, 11060 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [351 Valid, 10709 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2024-11-13 13:07:05,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8582 states. [2024-11-13 13:07:05,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8582 to 4654. [2024-11-13 13:07:05,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4654 states, 4653 states have (on average 1.125940253599828) internal successors, (5239), 4653 states have internal predecessors, (5239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:07:05,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4654 states to 4654 states and 5239 transitions. [2024-11-13 13:07:05,895 INFO L78 Accepts]: Start accepts. Automaton has 4654 states and 5239 transitions. Word has length 107 [2024-11-13 13:07:05,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:07:05,896 INFO L471 AbstractCegarLoop]: Abstraction has 4654 states and 5239 transitions. [2024-11-13 13:07:05,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 3.548780487804878) internal successors, (291), 82 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:07:05,896 INFO L276 IsEmpty]: Start isEmpty. Operand 4654 states and 5239 transitions. [2024-11-13 13:07:05,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 13:07:05,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:07:05,897 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:07:05,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-13 13:07:06,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:07:06,098 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:07:06,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:07:06,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1989555070, now seen corresponding path program 1 times [2024-11-13 13:07:06,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:07:06,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597631357] [2024-11-13 13:07:06,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:07:06,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:07:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:07,321 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:07:07,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:07:07,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597631357] [2024-11-13 13:07:07,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597631357] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:07:07,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053837762] [2024-11-13 13:07:07,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:07:07,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:07:07,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:07:07,323 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:07:07,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 13:07:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:07:07,553 INFO L255 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-13 13:07:07,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:07:12,216 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:07:12,216 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:07:18,875 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:07:18,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053837762] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:07:18,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:07:18,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 30, 30] total 78 [2024-11-13 13:07:18,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708602238] [2024-11-13 13:07:18,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:07:18,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2024-11-13 13:07:18,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:07:18,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2024-11-13 13:07:18,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=467, Invalid=5539, Unknown=0, NotChecked=0, Total=6006 [2024-11-13 13:07:18,877 INFO L87 Difference]: Start difference. First operand 4654 states and 5239 transitions. Second operand has 78 states, 78 states have (on average 3.730769230769231) internal successors, (291), 78 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:08:33,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:08:33,105 INFO L93 Difference]: Finished difference Result 7900 states and 8833 transitions. [2024-11-13 13:08:33,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 179 states. [2024-11-13 13:08:33,106 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 78 states have (on average 3.730769230769231) internal successors, (291), 78 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-11-13 13:08:33,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:08:33,110 INFO L225 Difference]: With dead ends: 7900 [2024-11-13 13:08:33,110 INFO L226 Difference]: Without dead ends: 6292 [2024-11-13 13:08:33,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 245 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19477 ImplicationChecksByTransitivity, 69.8s TimeCoverageRelationStatistics Valid=9005, Invalid=51757, Unknown=0, NotChecked=0, Total=60762 [2024-11-13 13:08:33,114 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 4801 mSDsluCounter, 8068 mSDsCounter, 0 mSdLazyCounter, 9470 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4801 SdHoareTripleChecker+Valid, 8294 SdHoareTripleChecker+Invalid, 9687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 9470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:08:33,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4801 Valid, 8294 Invalid, 9687 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [217 Valid, 9470 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2024-11-13 13:08:33,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6292 states. [2024-11-13 13:08:33,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6292 to 4407. [2024-11-13 13:08:33,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4407 states, 4406 states have (on average 1.1273263731275533) internal successors, (4967), 4406 states have internal predecessors, (4967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:08:33,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4407 states to 4407 states and 4967 transitions. [2024-11-13 13:08:33,150 INFO L78 Accepts]: Start accepts. Automaton has 4407 states and 4967 transitions. Word has length 107 [2024-11-13 13:08:33,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:08:33,150 INFO L471 AbstractCegarLoop]: Abstraction has 4407 states and 4967 transitions. [2024-11-13 13:08:33,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 3.730769230769231) internal successors, (291), 78 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:08:33,150 INFO L276 IsEmpty]: Start isEmpty. Operand 4407 states and 4967 transitions. [2024-11-13 13:08:33,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 13:08:33,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:08:33,151 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:08:33,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-13 13:08:33,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:08:33,352 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:08:33,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:08:33,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1293563160, now seen corresponding path program 1 times [2024-11-13 13:08:33,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:08:33,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842239623] [2024-11-13 13:08:33,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:08:33,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:08:33,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:34,583 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:08:34,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:08:34,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842239623] [2024-11-13 13:08:34,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842239623] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:08:34,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786957541] [2024-11-13 13:08:34,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:08:34,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:08:34,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:08:34,586 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:08:34,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-13 13:08:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:08:34,801 INFO L255 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-13 13:08:34,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:08:38,338 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:08:38,338 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:08:45,937 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:08:45,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786957541] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:08:45,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:08:45,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 29, 30] total 82 [2024-11-13 13:08:45,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575376904] [2024-11-13 13:08:45,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:08:45,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2024-11-13 13:08:45,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:08:45,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2024-11-13 13:08:45,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=569, Invalid=6073, Unknown=0, NotChecked=0, Total=6642 [2024-11-13 13:08:45,940 INFO L87 Difference]: Start difference. First operand 4407 states and 4967 transitions. Second operand has 82 states, 82 states have (on average 3.6097560975609757) internal successors, (296), 82 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:10:19,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:10:19,043 INFO L93 Difference]: Finished difference Result 8208 states and 9365 transitions. [2024-11-13 13:10:19,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2024-11-13 13:10:19,044 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 82 states have (on average 3.6097560975609757) internal successors, (296), 82 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-11-13 13:10:19,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:10:19,048 INFO L225 Difference]: With dead ends: 8208 [2024-11-13 13:10:19,048 INFO L226 Difference]: Without dead ends: 6605 [2024-11-13 13:10:19,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 219 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13784 ImplicationChecksByTransitivity, 90.1s TimeCoverageRelationStatistics Valid=7852, Invalid=40768, Unknown=0, NotChecked=0, Total=48620 [2024-11-13 13:10:19,052 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 5009 mSDsluCounter, 5599 mSDsCounter, 0 mSdLazyCounter, 8667 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5009 SdHoareTripleChecker+Valid, 5755 SdHoareTripleChecker+Invalid, 8921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 8667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:10:19,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5009 Valid, 5755 Invalid, 8921 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [254 Valid, 8667 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2024-11-13 13:10:19,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6605 states. [2024-11-13 13:10:19,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6605 to 4396. [2024-11-13 13:10:19,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4396 states, 4395 states have (on average 1.1271899886234358) internal successors, (4954), 4395 states have internal predecessors, (4954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:10:19,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4396 states to 4396 states and 4954 transitions. [2024-11-13 13:10:19,090 INFO L78 Accepts]: Start accepts. Automaton has 4396 states and 4954 transitions. Word has length 107 [2024-11-13 13:10:19,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:10:19,091 INFO L471 AbstractCegarLoop]: Abstraction has 4396 states and 4954 transitions. [2024-11-13 13:10:19,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 3.6097560975609757) internal successors, (296), 82 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:10:19,091 INFO L276 IsEmpty]: Start isEmpty. Operand 4396 states and 4954 transitions. [2024-11-13 13:10:19,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-13 13:10:19,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:10:19,092 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:10:19,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-13 13:10:19,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:10:19,294 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:10:19,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:10:19,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1727798672, now seen corresponding path program 1 times [2024-11-13 13:10:19,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:10:19,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68804301] [2024-11-13 13:10:19,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:10:19,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:10:19,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:10:19,766 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 38 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:10:19,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:10:19,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68804301] [2024-11-13 13:10:19,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68804301] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:10:19,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127344263] [2024-11-13 13:10:19,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:10:19,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:10:19,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:10:19,772 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:10:19,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-13 13:10:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:10:20,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-13 13:10:20,041 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:10:21,878 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 38 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:10:21,878 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:10:25,233 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 38 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:10:25,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127344263] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:10:25,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:10:25,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 22, 22] total 48 [2024-11-13 13:10:25,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454183016] [2024-11-13 13:10:25,233 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:10:25,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-13 13:10:25,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:10:25,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-13 13:10:25,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=251, Invalid=2101, Unknown=0, NotChecked=0, Total=2352 [2024-11-13 13:10:25,235 INFO L87 Difference]: Start difference. First operand 4396 states and 4954 transitions. Second operand has 49 states, 49 states have (on average 8.122448979591837) internal successors, (398), 48 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:10:41,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:10:41,079 INFO L93 Difference]: Finished difference Result 8606 states and 9737 transitions. [2024-11-13 13:10:41,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2024-11-13 13:10:41,080 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 8.122448979591837) internal successors, (398), 48 states have internal predecessors, (398), 0 states have call successors, (0), 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 150 [2024-11-13 13:10:41,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:10:41,083 INFO L225 Difference]: With dead ends: 8606 [2024-11-13 13:10:41,083 INFO L226 Difference]: Without dead ends: 5994 [2024-11-13 13:10:41,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5199 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=2825, Invalid=16357, Unknown=0, NotChecked=0, Total=19182 [2024-11-13 13:10:41,086 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 1627 mSDsluCounter, 2771 mSDsCounter, 0 mSdLazyCounter, 2900 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1627 SdHoareTripleChecker+Valid, 2878 SdHoareTripleChecker+Invalid, 2968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:10:41,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1627 Valid, 2878 Invalid, 2968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 2900 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-13 13:10:41,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5994 states. [2024-11-13 13:10:41,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5994 to 4396. [2024-11-13 13:10:41,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4396 states, 4395 states have (on average 1.120136518771331) internal successors, (4923), 4395 states have internal predecessors, (4923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:10:41,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4396 states to 4396 states and 4923 transitions. [2024-11-13 13:10:41,124 INFO L78 Accepts]: Start accepts. Automaton has 4396 states and 4923 transitions. Word has length 150 [2024-11-13 13:10:41,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:10:41,125 INFO L471 AbstractCegarLoop]: Abstraction has 4396 states and 4923 transitions. [2024-11-13 13:10:41,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 8.122448979591837) internal successors, (398), 48 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:10:41,125 INFO L276 IsEmpty]: Start isEmpty. Operand 4396 states and 4923 transitions. [2024-11-13 13:10:41,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-13 13:10:41,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:10:41,126 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:10:41,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-13 13:10:41,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:10:41,327 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:10:41,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:10:41,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1499910934, now seen corresponding path program 1 times [2024-11-13 13:10:41,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:10:41,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950153820] [2024-11-13 13:10:41,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:10:41,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:10:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:10:41,984 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 30 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:10:41,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:10:41,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950153820] [2024-11-13 13:10:41,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950153820] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:10:41,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593383052] [2024-11-13 13:10:41,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:10:41,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:10:41,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:10:41,987 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:10:41,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-13 13:10:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:10:42,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-13 13:10:42,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:10:43,371 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 33 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:10:43,371 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:10:45,599 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 30 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:10:45,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593383052] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:10:45,600 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:10:45,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2024-11-13 13:10:45,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933975352] [2024-11-13 13:10:45,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:10:45,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-13 13:10:45,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:10:45,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-13 13:10:45,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2024-11-13 13:10:45,601 INFO L87 Difference]: Start difference. First operand 4396 states and 4923 transitions. Second operand has 26 states, 26 states have (on average 12.538461538461538) internal successors, (326), 25 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:10:46,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:10:46,611 INFO L93 Difference]: Finished difference Result 6595 states and 7428 transitions. [2024-11-13 13:10:46,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 13:10:46,611 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.538461538461538) internal successors, (326), 25 states have internal predecessors, (326), 0 states have call successors, (0), 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 151 [2024-11-13 13:10:46,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:10:46,619 INFO L225 Difference]: With dead ends: 6595 [2024-11-13 13:10:46,619 INFO L226 Difference]: Without dead ends: 4400 [2024-11-13 13:10:46,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=304, Invalid=1178, Unknown=0, NotChecked=0, Total=1482 [2024-11-13 13:10:46,626 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 486 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:10:46,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 812 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 13:10:46,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4400 states. [2024-11-13 13:10:46,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4400 to 4396. [2024-11-13 13:10:46,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4396 states, 4395 states have (on average 1.1142207053469853) internal successors, (4897), 4395 states have internal predecessors, (4897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:10:46,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4396 states to 4396 states and 4897 transitions. [2024-11-13 13:10:46,677 INFO L78 Accepts]: Start accepts. Automaton has 4396 states and 4897 transitions. Word has length 151 [2024-11-13 13:10:46,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:10:46,678 INFO L471 AbstractCegarLoop]: Abstraction has 4396 states and 4897 transitions. [2024-11-13 13:10:46,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.538461538461538) internal successors, (326), 25 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:10:46,678 INFO L276 IsEmpty]: Start isEmpty. Operand 4396 states and 4897 transitions. [2024-11-13 13:10:46,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-13 13:10:46,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:10:46,680 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:10:46,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-13 13:10:46,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-13 13:10:46,881 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:10:46,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:10:46,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1483861358, now seen corresponding path program 1 times [2024-11-13 13:10:46,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:10:46,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570340635] [2024-11-13 13:10:46,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:10:46,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:10:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:10:47,500 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 38 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:10:47,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:10:47,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570340635] [2024-11-13 13:10:47,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570340635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:10:47,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319194180] [2024-11-13 13:10:47,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:10:47,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:10:47,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:10:47,502 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:10:47,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-13 13:10:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:10:47,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-13 13:10:47,796 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:10:48,801 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 19 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:10:48,801 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:10:51,310 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:10:51,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319194180] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:10:51,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:10:51,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 11] total 38 [2024-11-13 13:10:51,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178485704] [2024-11-13 13:10:51,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:10:51,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-13 13:10:51,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:10:51,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-13 13:10:51,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1278, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 13:10:51,312 INFO L87 Difference]: Start difference. First operand 4396 states and 4897 transitions. Second operand has 38 states, 38 states have (on average 11.552631578947368) internal successors, (439), 38 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:10:58,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:10:58,908 INFO L93 Difference]: Finished difference Result 8075 states and 9051 transitions. [2024-11-13 13:10:58,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2024-11-13 13:10:58,908 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 11.552631578947368) internal successors, (439), 38 states have internal predecessors, (439), 0 states have call successors, (0), 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 151 [2024-11-13 13:10:58,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:10:58,911 INFO L225 Difference]: With dead ends: 8075 [2024-11-13 13:10:58,912 INFO L226 Difference]: Without dead ends: 4908 [2024-11-13 13:10:58,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5022 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=3167, Invalid=14923, Unknown=0, NotChecked=0, Total=18090 [2024-11-13 13:10:58,916 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 2180 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 3351 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2180 SdHoareTripleChecker+Valid, 3018 SdHoareTripleChecker+Invalid, 3408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:10:58,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2180 Valid, 3018 Invalid, 3408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3351 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 13:10:58,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4908 states. [2024-11-13 13:10:58,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4908 to 4876. [2024-11-13 13:10:58,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4876 states, 4875 states have (on average 1.1048205128205129) internal successors, (5386), 4875 states have internal predecessors, (5386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:10:58,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4876 states to 4876 states and 5386 transitions. [2024-11-13 13:10:58,950 INFO L78 Accepts]: Start accepts. Automaton has 4876 states and 5386 transitions. Word has length 151 [2024-11-13 13:10:58,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:10:58,950 INFO L471 AbstractCegarLoop]: Abstraction has 4876 states and 5386 transitions. [2024-11-13 13:10:58,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 11.552631578947368) internal successors, (439), 38 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:10:58,950 INFO L276 IsEmpty]: Start isEmpty. Operand 4876 states and 5386 transitions. [2024-11-13 13:10:58,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-13 13:10:58,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:10:58,953 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:10:58,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-13 13:10:59,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-13 13:10:59,153 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:10:59,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:10:59,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1297898236, now seen corresponding path program 1 times [2024-11-13 13:10:59,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:10:59,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170029443] [2024-11-13 13:10:59,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:10:59,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:10:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:10:59,917 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 19 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:10:59,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:10:59,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170029443] [2024-11-13 13:10:59,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170029443] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:10:59,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062024973] [2024-11-13 13:10:59,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:10:59,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:10:59,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:10:59,920 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:10:59,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-13 13:11:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:11:00,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-13 13:11:00,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:11:03,301 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 19 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:11:03,301 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:11:07,368 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 16 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:11:07,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062024973] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:11:07,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:11:07,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 28, 24] total 66 [2024-11-13 13:11:07,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240128946] [2024-11-13 13:11:07,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:11:07,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-11-13 13:11:07,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:11:07,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-11-13 13:11:07,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=405, Invalid=3885, Unknown=0, NotChecked=0, Total=4290 [2024-11-13 13:11:07,370 INFO L87 Difference]: Start difference. First operand 4876 states and 5386 transitions. Second operand has 66 states, 66 states have (on average 6.5606060606060606) internal successors, (433), 66 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:11:18,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:11:18,049 INFO L93 Difference]: Finished difference Result 8498 states and 9460 transitions. [2024-11-13 13:11:18,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2024-11-13 13:11:18,050 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 6.5606060606060606) internal successors, (433), 66 states have internal predecessors, (433), 0 states have call successors, (0), 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 152 [2024-11-13 13:11:18,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:11:18,054 INFO L225 Difference]: With dead ends: 8498 [2024-11-13 13:11:18,054 INFO L226 Difference]: Without dead ends: 6471 [2024-11-13 13:11:18,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 256 SyntacticMatches, 1 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7677 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=3223, Invalid=22217, Unknown=0, NotChecked=0, Total=25440 [2024-11-13 13:11:18,057 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 1801 mSDsluCounter, 9859 mSDsCounter, 0 mSdLazyCounter, 4674 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1801 SdHoareTripleChecker+Valid, 10177 SdHoareTripleChecker+Invalid, 4703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 4674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:11:18,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1801 Valid, 10177 Invalid, 4703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 4674 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-13 13:11:18,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6471 states. [2024-11-13 13:11:18,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6471 to 5334. [2024-11-13 13:11:18,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5334 states, 5333 states have (on average 1.1085692855803488) internal successors, (5912), 5333 states have internal predecessors, (5912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:11:18,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 5912 transitions. [2024-11-13 13:11:18,099 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 5912 transitions. Word has length 152 [2024-11-13 13:11:18,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:11:18,099 INFO L471 AbstractCegarLoop]: Abstraction has 5334 states and 5912 transitions. [2024-11-13 13:11:18,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.5606060606060606) internal successors, (433), 66 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:11:18,100 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 5912 transitions. [2024-11-13 13:11:18,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-13 13:11:18,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:11:18,102 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:11:18,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-13 13:11:18,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-13 13:11:18,305 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:11:18,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:11:18,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1452413737, now seen corresponding path program 1 times [2024-11-13 13:11:18,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:11:18,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206958914] [2024-11-13 13:11:18,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:11:18,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:11:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:11:19,127 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 63 proven. 5 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-13 13:11:19,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:11:19,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206958914] [2024-11-13 13:11:19,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206958914] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:11:19,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321688430] [2024-11-13 13:11:19,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:11:19,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:11:19,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:11:19,130 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:11:19,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-13 13:11:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:11:19,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-13 13:11:19,478 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:11:22,533 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 31 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:11:22,533 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:11:26,209 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 31 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:11:26,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321688430] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:11:26,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:11:26,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 25, 24] total 62 [2024-11-13 13:11:26,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032003423] [2024-11-13 13:11:26,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:11:26,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-11-13 13:11:26,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:11:26,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-11-13 13:11:26,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=3504, Unknown=0, NotChecked=0, Total=3782 [2024-11-13 13:11:26,212 INFO L87 Difference]: Start difference. First operand 5334 states and 5912 transitions. Second operand has 62 states, 62 states have (on average 6.370967741935484) internal successors, (395), 62 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:11:40,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:11:40,878 INFO L93 Difference]: Finished difference Result 8394 states and 9313 transitions. [2024-11-13 13:11:40,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2024-11-13 13:11:40,878 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 6.370967741935484) internal successors, (395), 62 states have internal predecessors, (395), 0 states have call successors, (0), 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 153 [2024-11-13 13:11:40,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:11:40,884 INFO L225 Difference]: With dead ends: 8394 [2024-11-13 13:11:40,884 INFO L226 Difference]: Without dead ends: 7172 [2024-11-13 13:11:40,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5609 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=2579, Invalid=20983, Unknown=0, NotChecked=0, Total=23562 [2024-11-13 13:11:40,888 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 1921 mSDsluCounter, 10328 mSDsCounter, 0 mSdLazyCounter, 5305 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1921 SdHoareTripleChecker+Valid, 10639 SdHoareTripleChecker+Invalid, 5342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 5305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:11:40,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1921 Valid, 10639 Invalid, 5342 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [37 Valid, 5305 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-13 13:11:40,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7172 states. [2024-11-13 13:11:40,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7172 to 5936. [2024-11-13 13:11:40,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5936 states, 5935 states have (on average 1.1085088458298231) internal successors, (6579), 5935 states have internal predecessors, (6579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:11:40,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5936 states to 5936 states and 6579 transitions. [2024-11-13 13:11:40,935 INFO L78 Accepts]: Start accepts. Automaton has 5936 states and 6579 transitions. Word has length 153 [2024-11-13 13:11:40,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:11:40,935 INFO L471 AbstractCegarLoop]: Abstraction has 5936 states and 6579 transitions. [2024-11-13 13:11:40,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 6.370967741935484) internal successors, (395), 62 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:11:40,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5936 states and 6579 transitions. [2024-11-13 13:11:40,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-13 13:11:40,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:11:40,937 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:11:40,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-13 13:11:41,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-13 13:11:41,138 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:11:41,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:11:41,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1954651921, now seen corresponding path program 1 times [2024-11-13 13:11:41,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:11:41,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895554688] [2024-11-13 13:11:41,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:11:41,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:11:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:11:42,171 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 26 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:11:42,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:11:42,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895554688] [2024-11-13 13:11:42,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895554688] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:11:42,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303277668] [2024-11-13 13:11:42,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:11:42,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:11:42,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:11:42,174 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:11:42,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-13 13:11:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:11:42,452 INFO L255 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-13 13:11:42,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:11:44,604 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 26 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:11:44,605 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:11:48,101 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 26 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:11:48,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303277668] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:11:48,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:11:48,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 25, 20] total 63 [2024-11-13 13:11:48,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121424358] [2024-11-13 13:11:48,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:11:48,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-13 13:11:48,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:11:48,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-13 13:11:48,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=3643, Unknown=0, NotChecked=0, Total=3906 [2024-11-13 13:11:48,103 INFO L87 Difference]: Start difference. First operand 5936 states and 6579 transitions. Second operand has 63 states, 63 states have (on average 6.7936507936507935) internal successors, (428), 63 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:01,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:12:01,547 INFO L93 Difference]: Finished difference Result 9115 states and 10155 transitions. [2024-11-13 13:12:01,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2024-11-13 13:12:01,548 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 6.7936507936507935) internal successors, (428), 63 states have internal predecessors, (428), 0 states have call successors, (0), 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 153 [2024-11-13 13:12:01,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:12:01,552 INFO L225 Difference]: With dead ends: 9115 [2024-11-13 13:12:01,552 INFO L226 Difference]: Without dead ends: 7091 [2024-11-13 13:12:01,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5898 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=2779, Invalid=22661, Unknown=0, NotChecked=0, Total=25440 [2024-11-13 13:12:01,556 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 1948 mSDsluCounter, 8958 mSDsCounter, 0 mSdLazyCounter, 4507 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1948 SdHoareTripleChecker+Valid, 9239 SdHoareTripleChecker+Invalid, 4544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 4507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:12:01,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1948 Valid, 9239 Invalid, 4544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 4507 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-13 13:12:01,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7091 states. [2024-11-13 13:12:01,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7091 to 6561. [2024-11-13 13:12:01,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6561 states, 6560 states have (on average 1.1088414634146342) internal successors, (7274), 6560 states have internal predecessors, (7274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:01,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6561 states to 6561 states and 7274 transitions. [2024-11-13 13:12:01,603 INFO L78 Accepts]: Start accepts. Automaton has 6561 states and 7274 transitions. Word has length 153 [2024-11-13 13:12:01,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:12:01,604 INFO L471 AbstractCegarLoop]: Abstraction has 6561 states and 7274 transitions. [2024-11-13 13:12:01,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 6.7936507936507935) internal successors, (428), 63 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:01,604 INFO L276 IsEmpty]: Start isEmpty. Operand 6561 states and 7274 transitions. [2024-11-13 13:12:01,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-13 13:12:01,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:12:01,605 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:01,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-13 13:12:01,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:12:01,806 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:12:01,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:01,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1507046456, now seen corresponding path program 1 times [2024-11-13 13:12:01,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:01,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735457505] [2024-11-13 13:12:01,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:01,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:03,097 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 35 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:03,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:12:03,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735457505] [2024-11-13 13:12:03,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735457505] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:12:03,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565067889] [2024-11-13 13:12:03,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:03,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:12:03,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:12:03,099 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:12:03,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-13 13:12:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:03,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-13 13:12:03,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:12:06,807 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 35 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:06,807 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:12:10,854 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 32 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:10,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565067889] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:12:10,855 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:12:10,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 23, 23] total 64 [2024-11-13 13:12:10,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800879040] [2024-11-13 13:12:10,855 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:12:10,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-11-13 13:12:10,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:12:10,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-11-13 13:12:10,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=3801, Unknown=0, NotChecked=0, Total=4032 [2024-11-13 13:12:10,856 INFO L87 Difference]: Start difference. First operand 6561 states and 7274 transitions. Second operand has 64 states, 64 states have (on average 6.4375) internal successors, (412), 64 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:24,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:12:24,553 INFO L93 Difference]: Finished difference Result 8285 states and 9164 transitions. [2024-11-13 13:12:24,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-13 13:12:24,554 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 6.4375) internal successors, (412), 64 states have internal predecessors, (412), 0 states have call successors, (0), 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 154 [2024-11-13 13:12:24,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:12:24,561 INFO L225 Difference]: With dead ends: 8285 [2024-11-13 13:12:24,561 INFO L226 Difference]: Without dead ends: 6471 [2024-11-13 13:12:24,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 269 SyntacticMatches, 1 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3848 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=1639, Invalid=15391, Unknown=0, NotChecked=0, Total=17030 [2024-11-13 13:12:24,565 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 1741 mSDsluCounter, 7807 mSDsCounter, 0 mSdLazyCounter, 4119 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1741 SdHoareTripleChecker+Valid, 8032 SdHoareTripleChecker+Invalid, 4171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 4119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:12:24,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1741 Valid, 8032 Invalid, 4171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 4119 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-13 13:12:24,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6471 states. [2024-11-13 13:12:24,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6471 to 6396. [2024-11-13 13:12:24,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6396 states, 6395 states have (on average 1.1055512118842845) internal successors, (7070), 6395 states have internal predecessors, (7070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:24,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6396 states to 6396 states and 7070 transitions. [2024-11-13 13:12:24,639 INFO L78 Accepts]: Start accepts. Automaton has 6396 states and 7070 transitions. Word has length 154 [2024-11-13 13:12:24,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:12:24,639 INFO L471 AbstractCegarLoop]: Abstraction has 6396 states and 7070 transitions. [2024-11-13 13:12:24,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 6.4375) internal successors, (412), 64 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:24,639 INFO L276 IsEmpty]: Start isEmpty. Operand 6396 states and 7070 transitions. [2024-11-13 13:12:24,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-13 13:12:24,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:12:24,642 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:24,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-13 13:12:24,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:12:24,846 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:12:24,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:24,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1579779272, now seen corresponding path program 1 times [2024-11-13 13:12:24,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:24,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531943616] [2024-11-13 13:12:24,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:24,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:24,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:25,751 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 40 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:25,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:12:25,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531943616] [2024-11-13 13:12:25,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531943616] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:12:25,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134318848] [2024-11-13 13:12:25,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:25,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:12:25,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:12:25,754 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:12:25,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-13 13:12:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:26,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-13 13:12:26,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:12:28,333 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 40 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:28,333 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:12:31,298 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 40 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:31,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134318848] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:12:31,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:12:31,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 52 [2024-11-13 13:12:31,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723922746] [2024-11-13 13:12:31,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:12:31,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-13 13:12:31,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:12:31,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-13 13:12:31,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=2431, Unknown=0, NotChecked=0, Total=2652 [2024-11-13 13:12:31,300 INFO L87 Difference]: Start difference. First operand 6396 states and 7070 transitions. Second operand has 52 states, 52 states have (on average 7.711538461538462) internal successors, (401), 52 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:38,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:12:38,847 INFO L93 Difference]: Finished difference Result 13295 states and 14779 transitions. [2024-11-13 13:12:38,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-13 13:12:38,848 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 7.711538461538462) internal successors, (401), 52 states have internal predecessors, (401), 0 states have call successors, (0), 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 154 [2024-11-13 13:12:38,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:12:38,855 INFO L225 Difference]: With dead ends: 13295 [2024-11-13 13:12:38,855 INFO L226 Difference]: Without dead ends: 11026 [2024-11-13 13:12:38,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 274 SyntacticMatches, 2 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3239 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=1552, Invalid=10658, Unknown=0, NotChecked=0, Total=12210 [2024-11-13 13:12:38,859 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 1360 mSDsluCounter, 5972 mSDsCounter, 0 mSdLazyCounter, 2943 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 6219 SdHoareTripleChecker+Invalid, 2976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:12:38,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1360 Valid, 6219 Invalid, 2976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2943 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 13:12:38,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11026 states. [2024-11-13 13:12:38,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11026 to 8058. [2024-11-13 13:12:38,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8058 states, 8057 states have (on average 1.1047536303835175) internal successors, (8901), 8057 states have internal predecessors, (8901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:38,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8058 states to 8058 states and 8901 transitions. [2024-11-13 13:12:38,935 INFO L78 Accepts]: Start accepts. Automaton has 8058 states and 8901 transitions. Word has length 154 [2024-11-13 13:12:38,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:12:38,935 INFO L471 AbstractCegarLoop]: Abstraction has 8058 states and 8901 transitions. [2024-11-13 13:12:38,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 7.711538461538462) internal successors, (401), 52 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:38,936 INFO L276 IsEmpty]: Start isEmpty. Operand 8058 states and 8901 transitions. [2024-11-13 13:12:38,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-13 13:12:38,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:12:38,937 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:38,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-13 13:12:39,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:12:39,137 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:12:39,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:39,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1657565739, now seen corresponding path program 1 times [2024-11-13 13:12:39,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:39,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667173136] [2024-11-13 13:12:39,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:39,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:39,716 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 12 proven. 76 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 13:12:39,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:12:39,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667173136] [2024-11-13 13:12:39,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667173136] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:12:39,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719278519] [2024-11-13 13:12:39,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:39,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:12:39,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:12:39,718 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:12:39,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-13 13:12:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:40,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-13 13:12:40,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:12:40,607 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 12 proven. 78 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 13:12:40,608 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:12:41,464 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 74 proven. 21 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 13:12:41,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719278519] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:12:41,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:12:41,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 12, 9] total 19 [2024-11-13 13:12:41,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560100521] [2024-11-13 13:12:41,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:12:41,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 13:12:41,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:12:41,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 13:12:41,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-13 13:12:41,466 INFO L87 Difference]: Start difference. First operand 8058 states and 8901 transitions. Second operand has 19 states, 19 states have (on average 15.947368421052632) internal successors, (303), 19 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:41,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:12:41,732 INFO L93 Difference]: Finished difference Result 22663 states and 25284 transitions. [2024-11-13 13:12:41,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-13 13:12:41,733 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.947368421052632) internal successors, (303), 19 states have internal predecessors, (303), 0 states have call successors, (0), 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 154 [2024-11-13 13:12:41,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:12:41,743 INFO L225 Difference]: With dead ends: 22663 [2024-11-13 13:12:41,743 INFO L226 Difference]: Without dead ends: 15147 [2024-11-13 13:12:41,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 295 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2024-11-13 13:12:41,747 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 438 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:12:41,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 1346 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:12:41,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15147 states. [2024-11-13 13:12:41,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15147 to 14337. [2024-11-13 13:12:41,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14337 states, 14336 states have (on average 1.10791015625) internal successors, (15883), 14336 states have internal predecessors, (15883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:41,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14337 states to 14337 states and 15883 transitions. [2024-11-13 13:12:41,854 INFO L78 Accepts]: Start accepts. Automaton has 14337 states and 15883 transitions. Word has length 154 [2024-11-13 13:12:41,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:12:41,854 INFO L471 AbstractCegarLoop]: Abstraction has 14337 states and 15883 transitions. [2024-11-13 13:12:41,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.947368421052632) internal successors, (303), 19 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:41,854 INFO L276 IsEmpty]: Start isEmpty. Operand 14337 states and 15883 transitions. [2024-11-13 13:12:41,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-13 13:12:41,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:12:41,855 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:41,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-13 13:12:42,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-11-13 13:12:42,056 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:12:42,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:42,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1642222383, now seen corresponding path program 1 times [2024-11-13 13:12:42,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:42,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047455688] [2024-11-13 13:12:42,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:42,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:43,570 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 16 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:43,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:12:43,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047455688] [2024-11-13 13:12:43,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047455688] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:12:43,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516919108] [2024-11-13 13:12:43,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:43,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:12:43,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:12:43,572 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:12:43,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-13 13:12:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:43,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-13 13:12:43,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:12:46,845 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 16 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:46,845 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:12:51,547 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 16 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:51,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516919108] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:12:51,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:12:51,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 28, 27] total 76 [2024-11-13 13:12:51,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204748072] [2024-11-13 13:12:51,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:12:51,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2024-11-13 13:12:51,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:12:51,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2024-11-13 13:12:51,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=457, Invalid=5243, Unknown=0, NotChecked=0, Total=5700 [2024-11-13 13:12:51,550 INFO L87 Difference]: Start difference. First operand 14337 states and 15883 transitions. Second operand has 76 states, 76 states have (on average 5.473684210526316) internal successors, (416), 76 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:08,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:08,282 INFO L93 Difference]: Finished difference Result 18899 states and 21057 transitions. [2024-11-13 13:13:08,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2024-11-13 13:13:08,283 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 76 states have (on average 5.473684210526316) internal successors, (416), 76 states have internal predecessors, (416), 0 states have call successors, (0), 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 154 [2024-11-13 13:13:08,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:08,292 INFO L225 Difference]: With dead ends: 18899 [2024-11-13 13:13:08,292 INFO L226 Difference]: Without dead ends: 13808 [2024-11-13 13:13:08,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6913 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=3570, Invalid=26186, Unknown=0, NotChecked=0, Total=29756 [2024-11-13 13:13:08,297 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 2226 mSDsluCounter, 12017 mSDsCounter, 0 mSdLazyCounter, 7062 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2226 SdHoareTripleChecker+Valid, 12312 SdHoareTripleChecker+Invalid, 7127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 7062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:08,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2226 Valid, 12312 Invalid, 7127 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 7062 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-13 13:13:08,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13808 states. [2024-11-13 13:13:08,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13808 to 12710. [2024-11-13 13:13:08,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12710 states, 12709 states have (on average 1.1032339287119364) internal successors, (14021), 12709 states have internal predecessors, (14021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:08,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12710 states to 12710 states and 14021 transitions. [2024-11-13 13:13:08,410 INFO L78 Accepts]: Start accepts. Automaton has 12710 states and 14021 transitions. Word has length 154 [2024-11-13 13:13:08,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:08,411 INFO L471 AbstractCegarLoop]: Abstraction has 12710 states and 14021 transitions. [2024-11-13 13:13:08,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 5.473684210526316) internal successors, (416), 76 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:08,411 INFO L276 IsEmpty]: Start isEmpty. Operand 12710 states and 14021 transitions. [2024-11-13 13:13:08,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-13 13:13:08,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:08,413 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:13:08,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-13 13:13:08,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2024-11-13 13:13:08,613 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:08,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:08,614 INFO L85 PathProgramCache]: Analyzing trace with hash -592393322, now seen corresponding path program 1 times [2024-11-13 13:13:08,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:08,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959958177] [2024-11-13 13:13:08,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:08,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:09,695 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 22 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:13:09,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:09,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959958177] [2024-11-13 13:13:09,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959958177] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:13:09,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109779348] [2024-11-13 13:13:09,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:09,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:13:09,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:13:09,697 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:13:09,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-13 13:13:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:09,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-13 13:13:10,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:13:13,885 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 22 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:13:13,885 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:13:18,903 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 22 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:13:18,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109779348] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:13:18,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:13:18,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 31, 28] total 73 [2024-11-13 13:13:18,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463731917] [2024-11-13 13:13:18,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:13:18,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2024-11-13 13:13:18,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:18,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2024-11-13 13:13:18,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=471, Invalid=4785, Unknown=0, NotChecked=0, Total=5256 [2024-11-13 13:13:18,907 INFO L87 Difference]: Start difference. First operand 12710 states and 14021 transitions. Second operand has 73 states, 73 states have (on average 5.561643835616438) internal successors, (406), 73 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:32,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:32,431 INFO L93 Difference]: Finished difference Result 14714 states and 16228 transitions. [2024-11-13 13:13:32,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2024-11-13 13:13:32,431 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 5.561643835616438) internal successors, (406), 73 states have internal predecessors, (406), 0 states have call successors, (0), 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 154 [2024-11-13 13:13:32,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:32,439 INFO L225 Difference]: With dead ends: 14714 [2024-11-13 13:13:32,440 INFO L226 Difference]: Without dead ends: 12395 [2024-11-13 13:13:32,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 256 SyntacticMatches, 1 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6649 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=2679, Invalid=22761, Unknown=0, NotChecked=0, Total=25440 [2024-11-13 13:13:32,445 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 2499 mSDsluCounter, 8367 mSDsCounter, 0 mSdLazyCounter, 5127 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2499 SdHoareTripleChecker+Valid, 8606 SdHoareTripleChecker+Invalid, 5203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 5127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:32,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2499 Valid, 8606 Invalid, 5203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 5127 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-13 13:13:32,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12395 states. [2024-11-13 13:13:32,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12395 to 12379. [2024-11-13 13:13:32,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12379 states, 12378 states have (on average 1.1026821780578446) internal successors, (13649), 12378 states have internal predecessors, (13649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:32,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12379 states to 12379 states and 13649 transitions. [2024-11-13 13:13:32,631 INFO L78 Accepts]: Start accepts. Automaton has 12379 states and 13649 transitions. Word has length 154 [2024-11-13 13:13:32,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:32,631 INFO L471 AbstractCegarLoop]: Abstraction has 12379 states and 13649 transitions. [2024-11-13 13:13:32,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 5.561643835616438) internal successors, (406), 73 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:32,631 INFO L276 IsEmpty]: Start isEmpty. Operand 12379 states and 13649 transitions. [2024-11-13 13:13:32,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-13 13:13:32,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:32,633 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:13:32,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-13 13:13:32,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-11-13 13:13:32,834 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:32,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:32,839 INFO L85 PathProgramCache]: Analyzing trace with hash 982038, now seen corresponding path program 1 times [2024-11-13 13:13:32,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:32,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787209153] [2024-11-13 13:13:32,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:32,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:32,957 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-13 13:13:32,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:32,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787209153] [2024-11-13 13:13:32,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787209153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:32,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:13:32,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:13:32,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302333331] [2024-11-13 13:13:32,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:32,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:13:32,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:32,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:13:32,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:13:32,959 INFO L87 Difference]: Start difference. First operand 12379 states and 13649 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:33,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:33,031 INFO L93 Difference]: Finished difference Result 15958 states and 17673 transitions. [2024-11-13 13:13:33,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:13:33,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 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 155 [2024-11-13 13:13:33,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:33,039 INFO L225 Difference]: With dead ends: 15958 [2024-11-13 13:13:33,040 INFO L226 Difference]: Without dead ends: 11645 [2024-11-13 13:13:33,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:13:33,043 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 201 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:33,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 385 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:13:33,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11645 states. [2024-11-13 13:13:33,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11645 to 11223. [2024-11-13 13:13:33,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11223 states, 11222 states have (on average 1.0927642131527358) internal successors, (12263), 11222 states have internal predecessors, (12263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:33,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11223 states to 11223 states and 12263 transitions. [2024-11-13 13:13:33,147 INFO L78 Accepts]: Start accepts. Automaton has 11223 states and 12263 transitions. Word has length 155 [2024-11-13 13:13:33,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:33,147 INFO L471 AbstractCegarLoop]: Abstraction has 11223 states and 12263 transitions. [2024-11-13 13:13:33,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:33,148 INFO L276 IsEmpty]: Start isEmpty. Operand 11223 states and 12263 transitions. [2024-11-13 13:13:33,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-13 13:13:33,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:33,149 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:13:33,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-13 13:13:33,149 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:33,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:33,149 INFO L85 PathProgramCache]: Analyzing trace with hash 423683864, now seen corresponding path program 1 times [2024-11-13 13:13:33,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:33,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291110545] [2024-11-13 13:13:33,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:33,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:34,130 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 40 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:13:34,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:34,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291110545] [2024-11-13 13:13:34,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291110545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:13:34,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219478539] [2024-11-13 13:13:34,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:34,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:13:34,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:13:34,132 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:13:34,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_098d1226-816b-4122-b46f-9226d6b93e03/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-13 13:13:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:34,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-13 13:13:34,466 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:13:40,722 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 40 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:13:40,722 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:13:46,718 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 40 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:13:46,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219478539] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:13:46,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:13:46,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 28, 28] total 72 [2024-11-13 13:13:46,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418947781] [2024-11-13 13:13:46,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:13:46,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2024-11-13 13:13:46,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:46,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2024-11-13 13:13:46,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=372, Invalid=4740, Unknown=0, NotChecked=0, Total=5112 [2024-11-13 13:13:46,720 INFO L87 Difference]: Start difference. First operand 11223 states and 12263 transitions. Second operand has 72 states, 72 states have (on average 5.861111111111111) internal successors, (422), 72 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)