./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5237ab-54d4-46df-982d-3c154dd49ea8/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5237ab-54d4-46df-982d-3c154dd49ea8/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5237ab-54d4-46df-982d-3c154dd49ea8/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5237ab-54d4-46df-982d-3c154dd49ea8/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5237ab-54d4-46df-982d-3c154dd49ea8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5237ab-54d4-46df-982d-3c154dd49ea8/bin/uautomizer-verify-aQ6SnzHsRB --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 1fd92a9fd772101c63f3ecfbb0edb55e50fbfbad037a68e9b6ad137393c8d528 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:17:31,177 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:17:31,301 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5237ab-54d4-46df-982d-3c154dd49ea8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:17:31,311 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:17:31,316 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:17:31,366 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:17:31,367 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:17:31,368 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:17:31,368 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:17:31,369 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:17:31,369 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:17:31,369 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:17:31,370 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:17:31,370 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:17:31,371 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:17:31,371 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:17:31,372 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:17:31,372 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:17:31,372 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:17:31,372 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:17:31,373 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:17:31,373 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:17:31,373 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:17:31,373 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:17:31,373 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:17:31,374 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:17:31,374 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:17:31,374 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:17:31,374 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:17:31,374 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:17:31,374 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:17:31,374 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:17:31,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:17:31,375 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:17:31,375 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:17:31,375 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:17:31,375 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:17:31,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:17:31,375 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:17:31,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:17:31,375 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:17:31,376 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:17:31,376 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:17:31,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:17:31,378 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:17:31,378 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:17:31,378 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:17:31,378 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:17:31,378 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_db5237ab-54d4-46df-982d-3c154dd49ea8/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 1fd92a9fd772101c63f3ecfbb0edb55e50fbfbad037a68e9b6ad137393c8d528 [2024-11-28 03:17:31,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:17:31,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:17:31,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:17:31,792 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:17:31,793 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:17:31,794 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5237ab-54d4-46df-982d-3c154dd49ea8/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c [2024-11-28 03:17:34,787 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5237ab-54d4-46df-982d-3c154dd49ea8/bin/uautomizer-verify-aQ6SnzHsRB/data/ecd48ac1c/f88e11fe294743968fc70dccf99010d4/FLAG98fe9a1e2 [2024-11-28 03:17:35,204 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:17:35,205 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5237ab-54d4-46df-982d-3c154dd49ea8/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c [2024-11-28 03:17:35,225 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5237ab-54d4-46df-982d-3c154dd49ea8/bin/uautomizer-verify-aQ6SnzHsRB/data/ecd48ac1c/f88e11fe294743968fc70dccf99010d4/FLAG98fe9a1e2 [2024-11-28 03:17:35,242 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5237ab-54d4-46df-982d-3c154dd49ea8/bin/uautomizer-verify-aQ6SnzHsRB/data/ecd48ac1c/f88e11fe294743968fc70dccf99010d4 [2024-11-28 03:17:35,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:17:35,246 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:17:35,248 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:17:35,248 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:17:35,257 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:17:35,258 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:17:35" (1/1) ... [2024-11-28 03:17:35,259 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ffa686c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:35, skipping insertion in model container [2024-11-28 03:17:35,260 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:17:35" (1/1) ... [2024-11-28 03:17:35,324 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:17:35,856 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_db5237ab-54d4-46df-982d-3c154dd49ea8/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c[55771,55784] [2024-11-28 03:17:35,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:17:35,888 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:17:36,053 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_db5237ab-54d4-46df-982d-3c154dd49ea8/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c[55771,55784] [2024-11-28 03:17:36,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:17:36,073 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:17:36,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:36 WrapperNode [2024-11-28 03:17:36,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:17:36,076 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:17:36,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:17:36,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:17:36,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:36" (1/1) ... [2024-11-28 03:17:36,105 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:36" (1/1) ... [2024-11-28 03:17:36,216 INFO L138 Inliner]: procedures = 24, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 2099 [2024-11-28 03:17:36,216 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:17:36,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:17:36,217 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:17:36,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:17:36,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:36" (1/1) ... [2024-11-28 03:17:36,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:36" (1/1) ... [2024-11-28 03:17:36,248 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:36" (1/1) ... [2024-11-28 03:17:36,293 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]. [2024-11-28 03:17:36,293 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:36" (1/1) ... [2024-11-28 03:17:36,294 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:36" (1/1) ... [2024-11-28 03:17:36,374 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:36" (1/1) ... [2024-11-28 03:17:36,377 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:36" (1/1) ... [2024-11-28 03:17:36,428 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:36" (1/1) ... [2024-11-28 03:17:36,443 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:36" (1/1) ... [2024-11-28 03:17:36,452 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:36" (1/1) ... [2024-11-28 03:17:36,469 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:17:36,471 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:17:36,471 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:17:36,471 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:17:36,472 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:36" (1/1) ... [2024-11-28 03:17:36,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:17:36,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5237ab-54d4-46df-982d-3c154dd49ea8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:17:36,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5237ab-54d4-46df-982d-3c154dd49ea8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:17:36,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5237ab-54d4-46df-982d-3c154dd49ea8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:17:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:17:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:17:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:17:36,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:17:36,787 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:17:36,788 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:17:39,899 INFO L? ?]: Removed 220 outVars from TransFormulas that were not future-live. [2024-11-28 03:17:39,900 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:17:39,956 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:17:39,957 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:17:39,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:39 BoogieIcfgContainer [2024-11-28 03:17:39,959 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:17:39,963 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:17:39,963 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:17:39,969 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:17:39,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:17:35" (1/3) ... [2024-11-28 03:17:39,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ee9c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:17:39, skipping insertion in model container [2024-11-28 03:17:39,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:36" (2/3) ... [2024-11-28 03:17:39,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ee9c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:17:39, skipping insertion in model container [2024-11-28 03:17:39,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:39" (3/3) ... [2024-11-28 03:17:39,972 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c [2024-11-28 03:17:39,990 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:17:40,000 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c that has 1 procedures, 677 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:17:40,128 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:17:40,149 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;@bfe535b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:17:40,149 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:17:40,160 INFO L276 IsEmpty]: Start isEmpty. Operand has 677 states, 675 states have (on average 1.8651851851851853) internal successors, (1259), 676 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:40,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 03:17:40,197 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:40,198 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:40,198 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:40,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:40,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1732447779, now seen corresponding path program 1 times [2024-11-28 03:17:40,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:40,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584735028] [2024-11-28 03:17:40,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:40,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:41,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:41,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:41,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584735028] [2024-11-28 03:17:41,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584735028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:41,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:41,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:17:41,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114796892] [2024-11-28 03:17:41,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:41,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:17:41,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:41,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:17:41,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:17:41,946 INFO L87 Difference]: Start difference. First operand has 677 states, 675 states have (on average 1.8651851851851853) internal successors, (1259), 676 states have internal predecessors, (1259), 0 states have call successors, (0), 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 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:42,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:42,237 INFO L93 Difference]: Finished difference Result 827 states and 1526 transitions. [2024-11-28 03:17:42,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:17:42,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 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 [2024-11-28 03:17:42,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:42,267 INFO L225 Difference]: With dead ends: 827 [2024-11-28 03:17:42,268 INFO L226 Difference]: Without dead ends: 673 [2024-11-28 03:17:42,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:17:42,275 INFO L435 NwaCegarLoop]: 1254 mSDtfsCounter, 0 mSDsluCounter, 3712 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4966 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:42,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4966 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:17:42,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2024-11-28 03:17:42,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 673. [2024-11-28 03:17:42,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 672 states have (on average 1.7961309523809523) internal successors, (1207), 672 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:42,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 1207 transitions. [2024-11-28 03:17:42,358 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 1207 transitions. Word has length 154 [2024-11-28 03:17:42,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:42,362 INFO L471 AbstractCegarLoop]: Abstraction has 673 states and 1207 transitions. [2024-11-28 03:17:42,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:42,363 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 1207 transitions. [2024-11-28 03:17:42,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-28 03:17:42,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:42,372 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:42,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:17:42,373 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:42,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:42,374 INFO L85 PathProgramCache]: Analyzing trace with hash 2059236587, now seen corresponding path program 1 times [2024-11-28 03:17:42,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:42,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897584967] [2024-11-28 03:17:42,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:42,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:42,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:42,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:42,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897584967] [2024-11-28 03:17:42,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897584967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:42,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:42,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:17:42,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882968479] [2024-11-28 03:17:42,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:42,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:42,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:42,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:42,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:42,951 INFO L87 Difference]: Start difference. First operand 673 states and 1207 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:43,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:43,074 INFO L93 Difference]: Finished difference Result 943 states and 1693 transitions. [2024-11-28 03:17:43,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:43,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 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 198 [2024-11-28 03:17:43,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:43,083 INFO L225 Difference]: With dead ends: 943 [2024-11-28 03:17:43,087 INFO L226 Difference]: Without dead ends: 801 [2024-11-28 03:17:43,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:43,089 INFO L435 NwaCegarLoop]: 1206 mSDtfsCounter, 221 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2364 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:43,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 2364 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:17:43,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2024-11-28 03:17:43,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 799. [2024-11-28 03:17:43,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 798 states have (on average 1.7932330827067668) internal successors, (1431), 798 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:43,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1431 transitions. [2024-11-28 03:17:43,158 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1431 transitions. Word has length 198 [2024-11-28 03:17:43,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:43,159 INFO L471 AbstractCegarLoop]: Abstraction has 799 states and 1431 transitions. [2024-11-28 03:17:43,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:43,160 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1431 transitions. [2024-11-28 03:17:43,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-28 03:17:43,167 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:43,168 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:43,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:17:43,168 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:43,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:43,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1182836869, now seen corresponding path program 1 times [2024-11-28 03:17:43,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:43,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766704004] [2024-11-28 03:17:43,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:43,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:43,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:43,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:43,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766704004] [2024-11-28 03:17:43,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766704004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:43,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:43,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:17:43,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269200688] [2024-11-28 03:17:43,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:43,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:43,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:43,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:43,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:43,689 INFO L87 Difference]: Start difference. First operand 799 states and 1431 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:43,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:43,802 INFO L93 Difference]: Finished difference Result 1311 states and 2347 transitions. [2024-11-28 03:17:43,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:43,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 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 202 [2024-11-28 03:17:43,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:43,814 INFO L225 Difference]: With dead ends: 1311 [2024-11-28 03:17:43,815 INFO L226 Difference]: Without dead ends: 1043 [2024-11-28 03:17:43,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:43,820 INFO L435 NwaCegarLoop]: 1205 mSDtfsCounter, 221 mSDsluCounter, 1167 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2372 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:43,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 2372 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:17:43,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2024-11-28 03:17:43,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1041. [2024-11-28 03:17:43,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 1040 states have (on average 1.7923076923076924) internal successors, (1864), 1040 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:43,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1864 transitions. [2024-11-28 03:17:43,881 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1864 transitions. Word has length 202 [2024-11-28 03:17:43,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:43,883 INFO L471 AbstractCegarLoop]: Abstraction has 1041 states and 1864 transitions. [2024-11-28 03:17:43,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:43,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1864 transitions. [2024-11-28 03:17:43,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-28 03:17:43,892 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:43,893 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:43,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:17:43,893 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:43,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:43,893 INFO L85 PathProgramCache]: Analyzing trace with hash -713836321, now seen corresponding path program 1 times [2024-11-28 03:17:43,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:43,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331712023] [2024-11-28 03:17:43,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:43,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:44,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:44,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:44,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331712023] [2024-11-28 03:17:44,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331712023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:44,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:44,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:17:44,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661650330] [2024-11-28 03:17:44,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:44,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:44,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:44,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:44,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:44,318 INFO L87 Difference]: Start difference. First operand 1041 states and 1864 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:44,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:44,407 INFO L93 Difference]: Finished difference Result 2013 states and 3602 transitions. [2024-11-28 03:17:44,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:44,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 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 206 [2024-11-28 03:17:44,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:44,415 INFO L225 Difference]: With dead ends: 2013 [2024-11-28 03:17:44,415 INFO L226 Difference]: Without dead ends: 1503 [2024-11-28 03:17:44,416 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:44,419 INFO L435 NwaCegarLoop]: 1205 mSDtfsCounter, 213 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2373 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:44,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2373 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:17:44,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2024-11-28 03:17:44,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1501. [2024-11-28 03:17:44,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1501 states, 1500 states have (on average 1.7893333333333334) internal successors, (2684), 1500 states have internal predecessors, (2684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:44,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 2684 transitions. [2024-11-28 03:17:44,491 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 2684 transitions. Word has length 206 [2024-11-28 03:17:44,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:44,491 INFO L471 AbstractCegarLoop]: Abstraction has 1501 states and 2684 transitions. [2024-11-28 03:17:44,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:44,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 2684 transitions. [2024-11-28 03:17:44,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-28 03:17:44,497 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:44,497 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:44,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:17:44,498 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:44,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:44,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1728240135, now seen corresponding path program 1 times [2024-11-28 03:17:44,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:44,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748698905] [2024-11-28 03:17:44,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:44,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:44,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:44,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:44,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748698905] [2024-11-28 03:17:44,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748698905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:44,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:44,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:17:44,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297295006] [2024-11-28 03:17:44,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:44,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:44,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:44,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:44,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:44,895 INFO L87 Difference]: Start difference. First operand 1501 states and 2684 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:44,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:44,989 INFO L93 Difference]: Finished difference Result 3345 states and 5974 transitions. [2024-11-28 03:17:44,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:44,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 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 210 [2024-11-28 03:17:44,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:45,000 INFO L225 Difference]: With dead ends: 3345 [2024-11-28 03:17:45,000 INFO L226 Difference]: Without dead ends: 2375 [2024-11-28 03:17:45,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:45,004 INFO L435 NwaCegarLoop]: 1205 mSDtfsCounter, 205 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:45,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 2374 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:17:45,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2024-11-28 03:17:45,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 2373. [2024-11-28 03:17:45,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2373 states, 2372 states have (on average 1.7841483979763912) internal successors, (4232), 2372 states have internal predecessors, (4232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:45,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2373 states to 2373 states and 4232 transitions. [2024-11-28 03:17:45,091 INFO L78 Accepts]: Start accepts. Automaton has 2373 states and 4232 transitions. Word has length 210 [2024-11-28 03:17:45,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:45,091 INFO L471 AbstractCegarLoop]: Abstraction has 2373 states and 4232 transitions. [2024-11-28 03:17:45,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:45,092 INFO L276 IsEmpty]: Start isEmpty. Operand 2373 states and 4232 transitions. [2024-11-28 03:17:45,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-28 03:17:45,097 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:45,097 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:45,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:17:45,097 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:45,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:45,098 INFO L85 PathProgramCache]: Analyzing trace with hash 800288723, now seen corresponding path program 1 times [2024-11-28 03:17:45,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:45,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133949818] [2024-11-28 03:17:45,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:45,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:45,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:45,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:45,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133949818] [2024-11-28 03:17:45,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133949818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:45,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:45,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:17:45,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213064210] [2024-11-28 03:17:45,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:45,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:45,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:45,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:45,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:45,489 INFO L87 Difference]: Start difference. First operand 2373 states and 4232 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:45,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:45,615 INFO L93 Difference]: Finished difference Result 5865 states and 10442 transitions. [2024-11-28 03:17:45,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:45,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2024-11-28 03:17:45,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:45,637 INFO L225 Difference]: With dead ends: 5865 [2024-11-28 03:17:45,637 INFO L226 Difference]: Without dead ends: 4023 [2024-11-28 03:17:45,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:45,646 INFO L435 NwaCegarLoop]: 1205 mSDtfsCounter, 197 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 2375 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:45,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 2375 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:17:45,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4023 states. [2024-11-28 03:17:45,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4023 to 4021. [2024-11-28 03:17:45,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4021 states, 4020 states have (on average 1.7771144278606965) internal successors, (7144), 4020 states have internal predecessors, (7144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:45,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4021 states to 4021 states and 7144 transitions. [2024-11-28 03:17:45,851 INFO L78 Accepts]: Start accepts. Automaton has 4021 states and 7144 transitions. Word has length 214 [2024-11-28 03:17:45,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:45,853 INFO L471 AbstractCegarLoop]: Abstraction has 4021 states and 7144 transitions. [2024-11-28 03:17:45,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:45,853 INFO L276 IsEmpty]: Start isEmpty. Operand 4021 states and 7144 transitions. [2024-11-28 03:17:45,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-28 03:17:45,862 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:45,862 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:45,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:17:45,862 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:45,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:45,863 INFO L85 PathProgramCache]: Analyzing trace with hash 89986669, now seen corresponding path program 1 times [2024-11-28 03:17:45,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:45,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215493889] [2024-11-28 03:17:45,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:45,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:46,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:46,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:46,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:46,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215493889] [2024-11-28 03:17:46,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215493889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:46,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:46,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:17:46,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406543808] [2024-11-28 03:17:46,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:46,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:17:46,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:46,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:17:46,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:17:46,670 INFO L87 Difference]: Start difference. First operand 4021 states and 7144 transitions. Second operand has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:47,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:47,832 INFO L93 Difference]: Finished difference Result 23993 states and 42834 transitions. [2024-11-28 03:17:47,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:17:47,833 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 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 218 [2024-11-28 03:17:47,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:47,953 INFO L225 Difference]: With dead ends: 23993 [2024-11-28 03:17:47,953 INFO L226 Difference]: Without dead ends: 20503 [2024-11-28 03:17:47,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:17:47,963 INFO L435 NwaCegarLoop]: 1203 mSDtfsCounter, 2522 mSDsluCounter, 10506 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2522 SdHoareTripleChecker+Valid, 11709 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:47,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2522 Valid, 11709 Invalid, 382 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:17:47,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20503 states. [2024-11-28 03:17:48,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20503 to 7371. [2024-11-28 03:17:48,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7371 states, 7370 states have (on average 1.774898236092266) internal successors, (13081), 7370 states have internal predecessors, (13081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:48,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7371 states to 7371 states and 13081 transitions. [2024-11-28 03:17:48,545 INFO L78 Accepts]: Start accepts. Automaton has 7371 states and 13081 transitions. Word has length 218 [2024-11-28 03:17:48,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:48,546 INFO L471 AbstractCegarLoop]: Abstraction has 7371 states and 13081 transitions. [2024-11-28 03:17:48,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:48,546 INFO L276 IsEmpty]: Start isEmpty. Operand 7371 states and 13081 transitions. [2024-11-28 03:17:48,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-28 03:17:48,554 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:48,554 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:48,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:17:48,554 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:48,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:48,555 INFO L85 PathProgramCache]: Analyzing trace with hash 523207206, now seen corresponding path program 1 times [2024-11-28 03:17:48,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:48,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679586151] [2024-11-28 03:17:48,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:48,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:48,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:48,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:48,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679586151] [2024-11-28 03:17:48,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679586151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:48,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:48,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:17:48,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161328658] [2024-11-28 03:17:48,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:48,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:17:48,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:48,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:17:48,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:17:48,972 INFO L87 Difference]: Start difference. First operand 7371 states and 13081 transitions. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 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) [2024-11-28 03:17:49,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:49,312 INFO L93 Difference]: Finished difference Result 21455 states and 38199 transitions. [2024-11-28 03:17:49,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:17:49,313 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 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) Word has length 219 [2024-11-28 03:17:49,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:49,351 INFO L225 Difference]: With dead ends: 21455 [2024-11-28 03:17:49,352 INFO L226 Difference]: Without dead ends: 14615 [2024-11-28 03:17:49,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:17:49,363 INFO L435 NwaCegarLoop]: 1210 mSDtfsCounter, 737 mSDsluCounter, 2585 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 737 SdHoareTripleChecker+Valid, 3795 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:49,363 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [737 Valid, 3795 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:17:49,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14615 states. [2024-11-28 03:17:49,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14615 to 10960. [2024-11-28 03:17:49,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10960 states, 10959 states have (on average 1.7747969705265079) internal successors, (19450), 10959 states have internal predecessors, (19450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:49,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10960 states to 10960 states and 19450 transitions. [2024-11-28 03:17:49,747 INFO L78 Accepts]: Start accepts. Automaton has 10960 states and 19450 transitions. Word has length 219 [2024-11-28 03:17:49,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:49,747 INFO L471 AbstractCegarLoop]: Abstraction has 10960 states and 19450 transitions. [2024-11-28 03:17:49,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 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) [2024-11-28 03:17:49,748 INFO L276 IsEmpty]: Start isEmpty. Operand 10960 states and 19450 transitions. [2024-11-28 03:17:49,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-28 03:17:49,758 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:49,759 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:49,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:17:49,759 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:49,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:49,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1285033101, now seen corresponding path program 1 times [2024-11-28 03:17:49,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:49,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284555618] [2024-11-28 03:17:49,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:49,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:50,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:50,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:50,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284555618] [2024-11-28 03:17:50,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284555618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:50,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:50,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:17:50,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221837930] [2024-11-28 03:17:50,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:50,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:50,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:50,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:50,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:50,112 INFO L87 Difference]: Start difference. First operand 10960 states and 19450 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 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) [2024-11-28 03:17:50,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:50,521 INFO L93 Difference]: Finished difference Result 24214 states and 43047 transitions. [2024-11-28 03:17:50,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:50,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 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) Word has length 220 [2024-11-28 03:17:50,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:50,572 INFO L225 Difference]: With dead ends: 24214 [2024-11-28 03:17:50,572 INFO L226 Difference]: Without dead ends: 16911 [2024-11-28 03:17:50,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:50,586 INFO L435 NwaCegarLoop]: 1408 mSDtfsCounter, 230 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2577 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:50,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 2577 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:17:50,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16911 states. [2024-11-28 03:17:51,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16911 to 16909. [2024-11-28 03:17:51,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16909 states, 16908 states have (on average 1.7698722498225692) internal successors, (29925), 16908 states have internal predecessors, (29925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:51,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16909 states to 16909 states and 29925 transitions. [2024-11-28 03:17:51,166 INFO L78 Accepts]: Start accepts. Automaton has 16909 states and 29925 transitions. Word has length 220 [2024-11-28 03:17:51,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:51,167 INFO L471 AbstractCegarLoop]: Abstraction has 16909 states and 29925 transitions. [2024-11-28 03:17:51,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 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) [2024-11-28 03:17:51,167 INFO L276 IsEmpty]: Start isEmpty. Operand 16909 states and 29925 transitions. [2024-11-28 03:17:51,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-28 03:17:51,173 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:51,174 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:51,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:17:51,174 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:51,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:51,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1199745709, now seen corresponding path program 1 times [2024-11-28 03:17:51,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:51,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853557954] [2024-11-28 03:17:51,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:51,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:51,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:51,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:51,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853557954] [2024-11-28 03:17:51,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853557954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:51,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:51,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:17:51,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590180568] [2024-11-28 03:17:51,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:51,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:51,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:51,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:51,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:51,542 INFO L87 Difference]: Start difference. First operand 16909 states and 29925 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 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) [2024-11-28 03:17:51,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:51,922 INFO L93 Difference]: Finished difference Result 32733 states and 57884 transitions. [2024-11-28 03:17:51,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:51,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 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) Word has length 220 [2024-11-28 03:17:51,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:51,983 INFO L225 Difference]: With dead ends: 32733 [2024-11-28 03:17:51,983 INFO L226 Difference]: Without dead ends: 23947 [2024-11-28 03:17:51,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:51,999 INFO L435 NwaCegarLoop]: 1397 mSDtfsCounter, 222 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 2567 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:52,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 2567 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:17:52,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23947 states. [2024-11-28 03:17:52,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23947 to 23945. [2024-11-28 03:17:52,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23945 states, 23944 states have (on average 1.7621533578349482) internal successors, (42193), 23944 states have internal predecessors, (42193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:52,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23945 states to 23945 states and 42193 transitions. [2024-11-28 03:17:52,662 INFO L78 Accepts]: Start accepts. Automaton has 23945 states and 42193 transitions. Word has length 220 [2024-11-28 03:17:52,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:52,663 INFO L471 AbstractCegarLoop]: Abstraction has 23945 states and 42193 transitions. [2024-11-28 03:17:52,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 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) [2024-11-28 03:17:52,663 INFO L276 IsEmpty]: Start isEmpty. Operand 23945 states and 42193 transitions. [2024-11-28 03:17:52,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-28 03:17:52,668 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:52,668 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:52,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:17:52,669 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:52,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:52,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1988269875, now seen corresponding path program 1 times [2024-11-28 03:17:52,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:52,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723763680] [2024-11-28 03:17:52,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:52,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:52,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:52,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:52,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723763680] [2024-11-28 03:17:52,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723763680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:52,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:52,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:17:52,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502251837] [2024-11-28 03:17:52,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:52,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:52,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:52,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:52,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:52,956 INFO L87 Difference]: Start difference. First operand 23945 states and 42193 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 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) [2024-11-28 03:17:53,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:53,559 INFO L93 Difference]: Finished difference Result 46393 states and 81680 transitions. [2024-11-28 03:17:53,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:53,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 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) Word has length 220 [2024-11-28 03:17:53,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:53,639 INFO L225 Difference]: With dead ends: 46393 [2024-11-28 03:17:53,639 INFO L226 Difference]: Without dead ends: 33855 [2024-11-28 03:17:53,654 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:53,655 INFO L435 NwaCegarLoop]: 1377 mSDtfsCounter, 214 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2548 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:53,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 2548 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:17:53,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33855 states. [2024-11-28 03:17:54,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33855 to 33853. [2024-11-28 03:17:54,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33853 states, 33852 states have (on average 1.7536630036630036) internal successors, (59365), 33852 states have internal predecessors, (59365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:54,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33853 states to 33853 states and 59365 transitions. [2024-11-28 03:17:54,734 INFO L78 Accepts]: Start accepts. Automaton has 33853 states and 59365 transitions. Word has length 220 [2024-11-28 03:17:54,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:54,735 INFO L471 AbstractCegarLoop]: Abstraction has 33853 states and 59365 transitions. [2024-11-28 03:17:54,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 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) [2024-11-28 03:17:54,736 INFO L276 IsEmpty]: Start isEmpty. Operand 33853 states and 59365 transitions. [2024-11-28 03:17:54,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-28 03:17:54,740 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:54,740 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:54,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:17:54,740 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:54,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:54,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1264040211, now seen corresponding path program 1 times [2024-11-28 03:17:54,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:54,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130895133] [2024-11-28 03:17:54,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:54,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:55,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:55,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:55,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130895133] [2024-11-28 03:17:55,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130895133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:55,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:55,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:17:55,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065337064] [2024-11-28 03:17:55,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:55,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:55,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:55,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:55,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:55,003 INFO L87 Difference]: Start difference. First operand 33853 states and 59365 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 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) [2024-11-28 03:17:55,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:55,900 INFO L93 Difference]: Finished difference Result 65597 states and 114924 transitions. [2024-11-28 03:17:55,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:55,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 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) Word has length 220 [2024-11-28 03:17:55,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:56,067 INFO L225 Difference]: With dead ends: 65597 [2024-11-28 03:17:56,068 INFO L226 Difference]: Without dead ends: 47751 [2024-11-28 03:17:56,093 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:56,095 INFO L435 NwaCegarLoop]: 1357 mSDtfsCounter, 206 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 2529 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:56,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 2529 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:17:56,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47751 states. [2024-11-28 03:17:57,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47751 to 47749. [2024-11-28 03:17:57,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47749 states, 47748 states have (on average 1.7442196531791907) internal successors, (83283), 47748 states have internal predecessors, (83283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:57,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47749 states to 47749 states and 83283 transitions. [2024-11-28 03:17:57,459 INFO L78 Accepts]: Start accepts. Automaton has 47749 states and 83283 transitions. Word has length 220 [2024-11-28 03:17:57,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:57,460 INFO L471 AbstractCegarLoop]: Abstraction has 47749 states and 83283 transitions. [2024-11-28 03:17:57,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 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) [2024-11-28 03:17:57,460 INFO L276 IsEmpty]: Start isEmpty. Operand 47749 states and 83283 transitions. [2024-11-28 03:17:57,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-28 03:17:57,464 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:57,464 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:57,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:17:57,465 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:57,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:57,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1960622835, now seen corresponding path program 1 times [2024-11-28 03:17:57,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:57,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422957305] [2024-11-28 03:17:57,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:57,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:57,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:57,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:57,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422957305] [2024-11-28 03:17:57,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422957305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:57,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:57,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:17:57,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614510551] [2024-11-28 03:17:57,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:57,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:57,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:57,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:57,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:57,733 INFO L87 Difference]: Start difference. First operand 47749 states and 83283 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 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) [2024-11-28 03:17:58,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:58,579 INFO L93 Difference]: Finished difference Result 92477 states and 161120 transitions. [2024-11-28 03:17:58,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:58,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 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) Word has length 220 [2024-11-28 03:17:58,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:58,725 INFO L225 Difference]: With dead ends: 92477 [2024-11-28 03:17:58,725 INFO L226 Difference]: Without dead ends: 67149 [2024-11-28 03:17:58,758 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:58,760 INFO L435 NwaCegarLoop]: 1337 mSDtfsCounter, 198 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 2510 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:58,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 2510 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:17:58,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67149 states. [2024-11-28 03:18:00,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67149 to 67147. [2024-11-28 03:18:00,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67147 states, 67146 states have (on average 1.7336103416435826) internal successors, (116405), 67146 states have internal predecessors, (116405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:00,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67147 states to 67147 states and 116405 transitions. [2024-11-28 03:18:00,746 INFO L78 Accepts]: Start accepts. Automaton has 67147 states and 116405 transitions. Word has length 220 [2024-11-28 03:18:00,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:00,747 INFO L471 AbstractCegarLoop]: Abstraction has 67147 states and 116405 transitions. [2024-11-28 03:18:00,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 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) [2024-11-28 03:18:00,747 INFO L276 IsEmpty]: Start isEmpty. Operand 67147 states and 116405 transitions. [2024-11-28 03:18:00,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-28 03:18:00,754 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:00,754 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:00,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:18:00,758 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:00,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:00,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1237146308, now seen corresponding path program 1 times [2024-11-28 03:18:00,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:00,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337313956] [2024-11-28 03:18:00,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:00,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:01,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:01,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:01,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337313956] [2024-11-28 03:18:01,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337313956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:01,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:01,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:18:01,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156165019] [2024-11-28 03:18:01,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:01,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:01,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:01,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:01,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:01,343 INFO L87 Difference]: Start difference. First operand 67147 states and 116405 transitions. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 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) [2024-11-28 03:18:03,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:03,220 INFO L93 Difference]: Finished difference Result 222188 states and 385218 transitions. [2024-11-28 03:18:03,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:03,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 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) Word has length 220 [2024-11-28 03:18:03,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:03,551 INFO L225 Difference]: With dead ends: 222188 [2024-11-28 03:18:03,551 INFO L226 Difference]: Without dead ends: 155623 [2024-11-28 03:18:03,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:18:03,607 INFO L435 NwaCegarLoop]: 1196 mSDtfsCounter, 736 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 3783 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:03,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 3783 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:03,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155623 states. [2024-11-28 03:18:06,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155623 to 111116. [2024-11-28 03:18:06,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111116 states, 111115 states have (on average 1.7260495882644107) internal successors, (191790), 111115 states have internal predecessors, (191790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:06,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111116 states to 111116 states and 191790 transitions. [2024-11-28 03:18:06,614 INFO L78 Accepts]: Start accepts. Automaton has 111116 states and 191790 transitions. Word has length 220 [2024-11-28 03:18:06,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:06,615 INFO L471 AbstractCegarLoop]: Abstraction has 111116 states and 191790 transitions. [2024-11-28 03:18:06,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 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) [2024-11-28 03:18:06,616 INFO L276 IsEmpty]: Start isEmpty. Operand 111116 states and 191790 transitions. [2024-11-28 03:18:06,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-28 03:18:06,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:06,620 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:06,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:18:06,620 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:06,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:06,621 INFO L85 PathProgramCache]: Analyzing trace with hash 2063426333, now seen corresponding path program 1 times [2024-11-28 03:18:06,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:06,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957727068] [2024-11-28 03:18:06,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:06,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:06,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:06,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:06,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957727068] [2024-11-28 03:18:06,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957727068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:06,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:06,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:18:06,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137367091] [2024-11-28 03:18:06,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:06,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:06,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:06,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:06,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:06,951 INFO L87 Difference]: Start difference. First operand 111116 states and 191790 transitions. Second operand has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:10,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:10,008 INFO L93 Difference]: Finished difference Result 367706 states and 634776 transitions. [2024-11-28 03:18:10,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:10,009 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 0 states have call successors, (0), 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 221 [2024-11-28 03:18:10,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:10,498 INFO L225 Difference]: With dead ends: 367706 [2024-11-28 03:18:10,499 INFO L226 Difference]: Without dead ends: 257172 [2024-11-28 03:18:10,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:18:10,582 INFO L435 NwaCegarLoop]: 1196 mSDtfsCounter, 734 mSDsluCounter, 2589 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 3785 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:10,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 3785 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:18:10,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257172 states. [2024-11-28 03:18:14,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257172 to 183701. [2024-11-28 03:18:14,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183701 states, 183700 states have (on average 1.7185574305933586) internal successors, (315699), 183700 states have internal predecessors, (315699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:15,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183701 states to 183701 states and 315699 transitions. [2024-11-28 03:18:15,205 INFO L78 Accepts]: Start accepts. Automaton has 183701 states and 315699 transitions. Word has length 221 [2024-11-28 03:18:15,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:15,206 INFO L471 AbstractCegarLoop]: Abstraction has 183701 states and 315699 transitions. [2024-11-28 03:18:15,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:15,207 INFO L276 IsEmpty]: Start isEmpty. Operand 183701 states and 315699 transitions. [2024-11-28 03:18:15,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-28 03:18:15,212 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:15,212 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:15,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:18:15,213 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:15,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:15,214 INFO L85 PathProgramCache]: Analyzing trace with hash 2077307675, now seen corresponding path program 1 times [2024-11-28 03:18:15,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:15,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535955639] [2024-11-28 03:18:15,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:15,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:16,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:16,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:16,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535955639] [2024-11-28 03:18:16,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535955639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:16,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:16,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:18:16,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819958842] [2024-11-28 03:18:16,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:16,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:16,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:16,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:16,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:16,242 INFO L87 Difference]: Start difference. First operand 183701 states and 315699 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:20,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:20,287 INFO L93 Difference]: Finished difference Result 606184 states and 1042006 transitions. [2024-11-28 03:18:20,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:20,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 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 222 [2024-11-28 03:18:20,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:20,928 INFO L225 Difference]: With dead ends: 606184 [2024-11-28 03:18:20,928 INFO L226 Difference]: Without dead ends: 423065 [2024-11-28 03:18:21,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:18:21,043 INFO L435 NwaCegarLoop]: 1196 mSDtfsCounter, 732 mSDsluCounter, 2591 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 3787 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:21,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 3787 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:21,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423065 states. [2024-11-28 03:18:27,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423065 to 302658. [2024-11-28 03:18:27,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302658 states, 302657 states have (on average 1.7111912164595566) internal successors, (517904), 302657 states have internal predecessors, (517904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:28,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302658 states to 302658 states and 517904 transitions. [2024-11-28 03:18:28,852 INFO L78 Accepts]: Start accepts. Automaton has 302658 states and 517904 transitions. Word has length 222 [2024-11-28 03:18:28,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:28,853 INFO L471 AbstractCegarLoop]: Abstraction has 302658 states and 517904 transitions. [2024-11-28 03:18:28,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:28,853 INFO L276 IsEmpty]: Start isEmpty. Operand 302658 states and 517904 transitions. [2024-11-28 03:18:28,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-28 03:18:28,855 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:28,855 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:28,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:18:28,856 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:28,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:28,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1618333676, now seen corresponding path program 1 times [2024-11-28 03:18:28,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:28,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109873939] [2024-11-28 03:18:28,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:28,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:29,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:29,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:29,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109873939] [2024-11-28 03:18:29,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109873939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:29,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:29,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:18:29,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352933293] [2024-11-28 03:18:29,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:29,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:29,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:29,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:29,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:29,262 INFO L87 Difference]: Start difference. First operand 302658 states and 517904 transitions. Second operand has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)