./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737ff86a-7ba5-4e9e-85be-aba4ece158a9/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737ff86a-7ba5-4e9e-85be-aba4ece158a9/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737ff86a-7ba5-4e9e-85be-aba4ece158a9/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737ff86a-7ba5-4e9e-85be-aba4ece158a9/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737ff86a-7ba5-4e9e-85be-aba4ece158a9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737ff86a-7ba5-4e9e-85be-aba4ece158a9/bin/uautomizer-verify-jihMAELWvX --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 7155a8859e2806e57d4184cff6f07d8c67a6c5841bc646d358642ecb025a5a82 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:25:15,409 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:25:15,509 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737ff86a-7ba5-4e9e-85be-aba4ece158a9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:25:15,516 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:25:15,516 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:25:15,547 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:25:15,548 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:25:15,549 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:25:15,550 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:25:15,550 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:25:15,551 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:25:15,551 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:25:15,552 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:25:15,553 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:25:15,554 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:25:15,554 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:25:15,555 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:25:15,556 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:25:15,560 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:25:15,561 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:25:15,565 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:25:15,566 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:25:15,567 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:25:15,567 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:25:15,568 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:25:15,568 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:25:15,568 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:25:15,569 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:25:15,573 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:25:15,574 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:25:15,574 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:25:15,575 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:25:15,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:25:15,576 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:25:15,576 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:25:15,576 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:25:15,577 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:25:15,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:25:15,582 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:25:15,582 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:25:15,583 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:25:15,583 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:25:15,584 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737ff86a-7ba5-4e9e-85be-aba4ece158a9/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737ff86a-7ba5-4e9e-85be-aba4ece158a9/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7155a8859e2806e57d4184cff6f07d8c67a6c5841bc646d358642ecb025a5a82 [2024-11-08 16:25:15,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:25:15,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:25:15,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:25:15,934 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:25:15,934 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:25:15,936 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737ff86a-7ba5-4e9e-85be-aba4ece158a9/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c Unable to find full path for "g++" [2024-11-08 16:25:18,403 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:25:18,739 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:25:18,740 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737ff86a-7ba5-4e9e-85be-aba4ece158a9/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-11-08 16:25:18,765 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737ff86a-7ba5-4e9e-85be-aba4ece158a9/bin/uautomizer-verify-jihMAELWvX/data/7ac9cdb25/997c183ef248433a97dacdd49a2dfe27/FLAG47d01f078 [2024-11-08 16:25:19,017 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737ff86a-7ba5-4e9e-85be-aba4ece158a9/bin/uautomizer-verify-jihMAELWvX/data/7ac9cdb25/997c183ef248433a97dacdd49a2dfe27 [2024-11-08 16:25:19,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:25:19,022 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:25:19,024 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:25:19,024 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:25:19,031 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:25:19,032 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:25:19" (1/1) ... [2024-11-08 16:25:19,033 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dc2db0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:25:19, skipping insertion in model container [2024-11-08 16:25:19,034 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:25:19" (1/1) ... [2024-11-08 16:25:19,128 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:25:19,633 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_737ff86a-7ba5-4e9e-85be-aba4ece158a9/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[15968,15981] [2024-11-08 16:25:19,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:25:19,796 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:25:19,977 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_737ff86a-7ba5-4e9e-85be-aba4ece158a9/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[15968,15981] [2024-11-08 16:25:20,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:25:20,095 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:25:20,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:25:20 WrapperNode [2024-11-08 16:25:20,095 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:25:20,097 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:25:20,098 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:25:20,098 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:25:20,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:25:20" (1/1) ... [2024-11-08 16:25:20,131 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:25:20" (1/1) ... [2024-11-08 16:25:20,209 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1382 [2024-11-08 16:25:20,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:25:20,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:25:20,211 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:25:20,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:25:20,227 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:25:20" (1/1) ... [2024-11-08 16:25:20,227 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:25:20" (1/1) ... [2024-11-08 16:25:20,237 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:25:20" (1/1) ... [2024-11-08 16:25:20,269 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]. [2024-11-08 16:25:20,269 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:25:20" (1/1) ... [2024-11-08 16:25:20,270 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:25:20" (1/1) ... [2024-11-08 16:25:20,293 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:25:20" (1/1) ... [2024-11-08 16:25:20,305 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:25:20" (1/1) ... [2024-11-08 16:25:20,313 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:25:20" (1/1) ... [2024-11-08 16:25:20,320 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:25:20" (1/1) ... [2024-11-08 16:25:20,331 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:25:20,360 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:25:20,360 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:25:20,360 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:25:20,361 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:25:20" (1/1) ... [2024-11-08 16:25:20,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:25:20,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737ff86a-7ba5-4e9e-85be-aba4ece158a9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:25:20,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737ff86a-7ba5-4e9e-85be-aba4ece158a9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:25:20,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737ff86a-7ba5-4e9e-85be-aba4ece158a9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:25:20,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:25:20,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:25:20,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:25:20,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:25:20,776 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:25:20,779 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:25:22,581 INFO L? ?]: Removed 99 outVars from TransFormulas that were not future-live. [2024-11-08 16:25:22,582 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:25:22,618 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:25:22,619 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:25:22,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:25:22 BoogieIcfgContainer [2024-11-08 16:25:22,620 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:25:22,625 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:25:22,627 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:25:22,631 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:25:22,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:25:19" (1/3) ... [2024-11-08 16:25:22,633 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d2dde5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:25:22, skipping insertion in model container [2024-11-08 16:25:22,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:25:20" (2/3) ... [2024-11-08 16:25:22,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d2dde5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:25:22, skipping insertion in model container [2024-11-08 16:25:22,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:25:22" (3/3) ... [2024-11-08 16:25:22,636 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-11-08 16:25:22,660 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:25:22,660 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 16:25:22,771 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:25:22,781 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;@229f8d93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:25:22,781 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 16:25:22,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 337 states, 335 states have (on average 1.773134328358209) internal successors, (594), 336 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:22,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-08 16:25:22,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:22,818 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:22,819 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:22,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:22,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1686891750, now seen corresponding path program 1 times [2024-11-08 16:25:22,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:22,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561753442] [2024-11-08 16:25:22,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:22,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:23,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:23,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:23,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561753442] [2024-11-08 16:25:23,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561753442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:23,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:23,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:25:23,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287484667] [2024-11-08 16:25:23,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:23,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:23,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:23,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:23,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:23,994 INFO L87 Difference]: Start difference. First operand has 337 states, 335 states have (on average 1.773134328358209) internal successors, (594), 336 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:24,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:24,276 INFO L93 Difference]: Finished difference Result 664 states and 1156 transitions. [2024-11-08 16:25:24,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:24,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2024-11-08 16:25:24,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:24,299 INFO L225 Difference]: With dead ends: 664 [2024-11-08 16:25:24,299 INFO L226 Difference]: Without dead ends: 543 [2024-11-08 16:25:24,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:24,308 INFO L432 NwaCegarLoop]: 563 mSDtfsCounter, 399 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:24,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 972 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:25:24,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-11-08 16:25:24,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 541. [2024-11-08 16:25:24,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 540 states have (on average 1.5) internal successors, (810), 540 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:24,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 810 transitions. [2024-11-08 16:25:24,405 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 810 transitions. Word has length 153 [2024-11-08 16:25:24,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:24,406 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 810 transitions. [2024-11-08 16:25:24,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:24,407 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 810 transitions. [2024-11-08 16:25:24,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-08 16:25:24,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:24,415 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:24,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:25:24,415 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:24,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:24,417 INFO L85 PathProgramCache]: Analyzing trace with hash -2064713451, now seen corresponding path program 1 times [2024-11-08 16:25:24,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:24,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477696409] [2024-11-08 16:25:24,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:24,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:25,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:25,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:25,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477696409] [2024-11-08 16:25:25,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477696409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:25,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:25,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:25:25,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339012370] [2024-11-08 16:25:25,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:25,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:25:25,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:25,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:25:25,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:25:25,454 INFO L87 Difference]: Start difference. First operand 541 states and 810 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:25,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:25,667 INFO L93 Difference]: Finished difference Result 2060 states and 3064 transitions. [2024-11-08 16:25:25,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:25:25,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2024-11-08 16:25:25,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:25,678 INFO L225 Difference]: With dead ends: 2060 [2024-11-08 16:25:25,678 INFO L226 Difference]: Without dead ends: 1544 [2024-11-08 16:25:25,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:25:25,687 INFO L432 NwaCegarLoop]: 769 mSDtfsCounter, 878 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 1644 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:25,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [878 Valid, 1644 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:25:25,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2024-11-08 16:25:25,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1042. [2024-11-08 16:25:25,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 1041 states have (on average 1.483189241114313) internal successors, (1544), 1041 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:25,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1544 transitions. [2024-11-08 16:25:25,759 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1544 transitions. Word has length 153 [2024-11-08 16:25:25,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:25,764 INFO L471 AbstractCegarLoop]: Abstraction has 1042 states and 1544 transitions. [2024-11-08 16:25:25,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:25,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1544 transitions. [2024-11-08 16:25:25,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-08 16:25:25,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:25,775 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:25,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:25:25,776 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:25,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:25,776 INFO L85 PathProgramCache]: Analyzing trace with hash -2039605151, now seen corresponding path program 1 times [2024-11-08 16:25:25,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:25,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851035668] [2024-11-08 16:25:25,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:25,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:25,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:25,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:25,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851035668] [2024-11-08 16:25:25,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851035668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:25,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:25,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:25:25,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975769552] [2024-11-08 16:25:25,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:25,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:25,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:25,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:25,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:25,978 INFO L87 Difference]: Start difference. First operand 1042 states and 1544 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 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) [2024-11-08 16:25:26,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:26,037 INFO L93 Difference]: Finished difference Result 2058 states and 3044 transitions. [2024-11-08 16:25:26,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:26,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 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 [2024-11-08 16:25:26,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:26,043 INFO L225 Difference]: With dead ends: 2058 [2024-11-08 16:25:26,043 INFO L226 Difference]: Without dead ends: 1044 [2024-11-08 16:25:26,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:26,050 INFO L432 NwaCegarLoop]: 494 mSDtfsCounter, 0 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:26,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 982 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:25:26,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2024-11-08 16:25:26,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2024-11-08 16:25:26,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 1043 states have (on average 1.4822627037392138) internal successors, (1546), 1043 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:26,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1546 transitions. [2024-11-08 16:25:26,089 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1546 transitions. Word has length 154 [2024-11-08 16:25:26,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:26,090 INFO L471 AbstractCegarLoop]: Abstraction has 1044 states and 1546 transitions. [2024-11-08 16:25:26,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 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) [2024-11-08 16:25:26,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1546 transitions. [2024-11-08 16:25:26,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-08 16:25:26,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:26,096 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:26,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:25:26,097 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:26,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:26,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1427333698, now seen corresponding path program 1 times [2024-11-08 16:25:26,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:26,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752215049] [2024-11-08 16:25:26,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:26,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:26,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:26,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:26,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752215049] [2024-11-08 16:25:26,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752215049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:26,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:26,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:25:26,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193388066] [2024-11-08 16:25:26,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:26,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:26,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:26,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:26,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:26,343 INFO L87 Difference]: Start difference. First operand 1044 states and 1546 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:26,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:26,433 INFO L93 Difference]: Finished difference Result 2685 states and 3976 transitions. [2024-11-08 16:25:26,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:26,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2024-11-08 16:25:26,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:26,443 INFO L225 Difference]: With dead ends: 2685 [2024-11-08 16:25:26,443 INFO L226 Difference]: Without dead ends: 1836 [2024-11-08 16:25:26,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:26,446 INFO L432 NwaCegarLoop]: 933 mSDtfsCounter, 417 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1380 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:26,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 1380 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:25:26,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2024-11-08 16:25:26,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1834. [2024-11-08 16:25:26,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 1833 states have (on average 1.4609929078014185) internal successors, (2678), 1833 states have internal predecessors, (2678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:26,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2678 transitions. [2024-11-08 16:25:26,507 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2678 transitions. Word has length 155 [2024-11-08 16:25:26,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:26,510 INFO L471 AbstractCegarLoop]: Abstraction has 1834 states and 2678 transitions. [2024-11-08 16:25:26,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:26,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2678 transitions. [2024-11-08 16:25:26,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-08 16:25:26,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:26,516 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:26,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:25:26,516 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:26,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:26,518 INFO L85 PathProgramCache]: Analyzing trace with hash -697762299, now seen corresponding path program 1 times [2024-11-08 16:25:26,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:26,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720124975] [2024-11-08 16:25:26,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:26,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:27,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:27,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:27,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720124975] [2024-11-08 16:25:27,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720124975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:27,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:27,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:25:27,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923674794] [2024-11-08 16:25:27,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:27,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:25:27,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:27,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:25:27,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:25:27,363 INFO L87 Difference]: Start difference. First operand 1834 states and 2678 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:27,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:27,429 INFO L93 Difference]: Finished difference Result 3193 states and 4684 transitions. [2024-11-08 16:25:27,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:25:27,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2024-11-08 16:25:27,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:27,436 INFO L225 Difference]: With dead ends: 3193 [2024-11-08 16:25:27,436 INFO L226 Difference]: Without dead ends: 1542 [2024-11-08 16:25:27,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:25:27,464 INFO L432 NwaCegarLoop]: 537 mSDtfsCounter, 25 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:27,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1558 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:25:27,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2024-11-08 16:25:27,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 1542. [2024-11-08 16:25:27,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1542 states, 1541 states have (on average 1.462686567164179) internal successors, (2254), 1541 states have internal predecessors, (2254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:27,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 2254 transitions. [2024-11-08 16:25:27,529 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 2254 transitions. Word has length 155 [2024-11-08 16:25:27,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:27,530 INFO L471 AbstractCegarLoop]: Abstraction has 1542 states and 2254 transitions. [2024-11-08 16:25:27,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:27,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 2254 transitions. [2024-11-08 16:25:27,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-08 16:25:27,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:27,537 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:27,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:25:27,537 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:27,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:27,538 INFO L85 PathProgramCache]: Analyzing trace with hash -134790601, now seen corresponding path program 1 times [2024-11-08 16:25:27,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:27,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657324685] [2024-11-08 16:25:27,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:27,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:27,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:27,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:27,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657324685] [2024-11-08 16:25:27,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657324685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:27,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:27,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:25:27,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599061255] [2024-11-08 16:25:27,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:27,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:27,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:27,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:27,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:27,752 INFO L87 Difference]: Start difference. First operand 1542 states and 2254 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:27,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:27,851 INFO L93 Difference]: Finished difference Result 3639 states and 5427 transitions. [2024-11-08 16:25:27,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:27,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 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 157 [2024-11-08 16:25:27,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:27,864 INFO L225 Difference]: With dead ends: 3639 [2024-11-08 16:25:27,865 INFO L226 Difference]: Without dead ends: 2282 [2024-11-08 16:25:27,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:27,871 INFO L432 NwaCegarLoop]: 687 mSDtfsCounter, 307 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:27,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 1046 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:25:27,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2024-11-08 16:25:27,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 1966. [2024-11-08 16:25:27,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1966 states, 1965 states have (on average 1.4972010178117048) internal successors, (2942), 1965 states have internal predecessors, (2942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:27,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 2942 transitions. [2024-11-08 16:25:27,944 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 2942 transitions. Word has length 157 [2024-11-08 16:25:27,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:27,945 INFO L471 AbstractCegarLoop]: Abstraction has 1966 states and 2942 transitions. [2024-11-08 16:25:27,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:27,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 2942 transitions. [2024-11-08 16:25:27,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-08 16:25:27,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:27,951 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:27,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:25:27,952 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:27,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:27,952 INFO L85 PathProgramCache]: Analyzing trace with hash -998712723, now seen corresponding path program 1 times [2024-11-08 16:25:27,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:27,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013557106] [2024-11-08 16:25:27,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:27,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:28,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:28,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:28,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:28,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013557106] [2024-11-08 16:25:28,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013557106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:28,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:28,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:25:28,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354092749] [2024-11-08 16:25:28,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:28,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:28,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:28,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:28,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:28,153 INFO L87 Difference]: Start difference. First operand 1966 states and 2942 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:28,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:28,252 INFO L93 Difference]: Finished difference Result 4697 states and 7164 transitions. [2024-11-08 16:25:28,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:28,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2024-11-08 16:25:28,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:28,264 INFO L225 Difference]: With dead ends: 4697 [2024-11-08 16:25:28,264 INFO L226 Difference]: Without dead ends: 3000 [2024-11-08 16:25:28,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:28,303 INFO L432 NwaCegarLoop]: 667 mSDtfsCounter, 298 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:28,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 1006 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:25:28,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2024-11-08 16:25:28,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 2720. [2024-11-08 16:25:28,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2720 states, 2719 states have (on average 1.528870908422214) internal successors, (4157), 2719 states have internal predecessors, (4157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:28,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2720 states to 2720 states and 4157 transitions. [2024-11-08 16:25:28,390 INFO L78 Accepts]: Start accepts. Automaton has 2720 states and 4157 transitions. Word has length 159 [2024-11-08 16:25:28,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:28,394 INFO L471 AbstractCegarLoop]: Abstraction has 2720 states and 4157 transitions. [2024-11-08 16:25:28,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:28,394 INFO L276 IsEmpty]: Start isEmpty. Operand 2720 states and 4157 transitions. [2024-11-08 16:25:28,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-08 16:25:28,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:28,399 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:28,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:25:28,403 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:28,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:28,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1717485432, now seen corresponding path program 1 times [2024-11-08 16:25:28,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:28,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543218621] [2024-11-08 16:25:28,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:28,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:28,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:28,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:28,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:28,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543218621] [2024-11-08 16:25:28,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543218621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:28,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:28,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:25:28,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218124594] [2024-11-08 16:25:28,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:28,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:25:28,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:28,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:25:28,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:25:28,741 INFO L87 Difference]: Start difference. First operand 2720 states and 4157 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:29,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:29,021 INFO L93 Difference]: Finished difference Result 7944 states and 12668 transitions. [2024-11-08 16:25:29,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:25:29,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2024-11-08 16:25:29,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:29,046 INFO L225 Difference]: With dead ends: 7944 [2024-11-08 16:25:29,046 INFO L226 Difference]: Without dead ends: 6275 [2024-11-08 16:25:29,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:25:29,051 INFO L432 NwaCegarLoop]: 597 mSDtfsCounter, 1103 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:29,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1103 Valid, 1458 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:25:29,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6275 states. [2024-11-08 16:25:29,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6275 to 4530. [2024-11-08 16:25:29,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4530 states, 4529 states have (on average 1.5654669905056304) internal successors, (7090), 4529 states have internal predecessors, (7090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:29,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4530 states to 4530 states and 7090 transitions. [2024-11-08 16:25:29,242 INFO L78 Accepts]: Start accepts. Automaton has 4530 states and 7090 transitions. Word has length 160 [2024-11-08 16:25:29,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:29,243 INFO L471 AbstractCegarLoop]: Abstraction has 4530 states and 7090 transitions. [2024-11-08 16:25:29,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:29,243 INFO L276 IsEmpty]: Start isEmpty. Operand 4530 states and 7090 transitions. [2024-11-08 16:25:29,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-08 16:25:29,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:29,247 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:29,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:25:29,248 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:29,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:29,248 INFO L85 PathProgramCache]: Analyzing trace with hash 2094526459, now seen corresponding path program 1 times [2024-11-08 16:25:29,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:29,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834767105] [2024-11-08 16:25:29,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:29,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:29,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:29,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:29,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834767105] [2024-11-08 16:25:29,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834767105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:29,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:29,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:25:29,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581844433] [2024-11-08 16:25:29,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:29,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:29,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:29,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:29,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:29,453 INFO L87 Difference]: Start difference. First operand 4530 states and 7090 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:29,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:29,643 INFO L93 Difference]: Finished difference Result 11209 states and 17808 transitions. [2024-11-08 16:25:29,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:29,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2024-11-08 16:25:29,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:29,682 INFO L225 Difference]: With dead ends: 11209 [2024-11-08 16:25:29,684 INFO L226 Difference]: Without dead ends: 7762 [2024-11-08 16:25:29,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:29,692 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 298 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:29,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 792 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:25:29,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7762 states. [2024-11-08 16:25:29,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7762 to 7760. [2024-11-08 16:25:29,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7760 states, 7759 states have (on average 1.567212269622374) internal successors, (12160), 7759 states have internal predecessors, (12160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:29,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7760 states to 7760 states and 12160 transitions. [2024-11-08 16:25:29,967 INFO L78 Accepts]: Start accepts. Automaton has 7760 states and 12160 transitions. Word has length 160 [2024-11-08 16:25:29,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:29,967 INFO L471 AbstractCegarLoop]: Abstraction has 7760 states and 12160 transitions. [2024-11-08 16:25:29,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:29,968 INFO L276 IsEmpty]: Start isEmpty. Operand 7760 states and 12160 transitions. [2024-11-08 16:25:29,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-08 16:25:29,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:29,975 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:29,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:25:29,975 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:29,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:29,976 INFO L85 PathProgramCache]: Analyzing trace with hash -2095307133, now seen corresponding path program 1 times [2024-11-08 16:25:29,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:29,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024079684] [2024-11-08 16:25:29,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:29,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:30,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:30,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:30,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024079684] [2024-11-08 16:25:30,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024079684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:30,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:30,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:25:30,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352317178] [2024-11-08 16:25:30,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:30,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:25:30,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:30,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:25:30,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:25:30,579 INFO L87 Difference]: Start difference. First operand 7760 states and 12160 transitions. Second operand has 8 states, 8 states have (on average 20.0) internal successors, (160), 7 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:31,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:31,875 INFO L93 Difference]: Finished difference Result 29846 states and 47099 transitions. [2024-11-08 16:25:31,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 16:25:31,876 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.0) internal successors, (160), 7 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2024-11-08 16:25:31,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:31,954 INFO L225 Difference]: With dead ends: 29846 [2024-11-08 16:25:31,954 INFO L226 Difference]: Without dead ends: 22304 [2024-11-08 16:25:31,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2024-11-08 16:25:31,972 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 5988 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5988 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:31,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5988 Valid, 1297 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 16:25:32,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22304 states. [2024-11-08 16:25:32,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22304 to 10945. [2024-11-08 16:25:32,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10945 states, 10944 states have (on average 1.5286915204678362) internal successors, (16730), 10944 states have internal predecessors, (16730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:32,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10945 states to 10945 states and 16730 transitions. [2024-11-08 16:25:32,465 INFO L78 Accepts]: Start accepts. Automaton has 10945 states and 16730 transitions. Word has length 160 [2024-11-08 16:25:32,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:32,466 INFO L471 AbstractCegarLoop]: Abstraction has 10945 states and 16730 transitions. [2024-11-08 16:25:32,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.0) internal successors, (160), 7 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:32,467 INFO L276 IsEmpty]: Start isEmpty. Operand 10945 states and 16730 transitions. [2024-11-08 16:25:32,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-08 16:25:32,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:32,474 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:32,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:25:32,475 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:32,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:32,476 INFO L85 PathProgramCache]: Analyzing trace with hash -421132591, now seen corresponding path program 1 times [2024-11-08 16:25:32,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:32,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129466754] [2024-11-08 16:25:32,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:32,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:33,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:33,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:33,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129466754] [2024-11-08 16:25:33,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129466754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:33,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:33,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:25:33,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4565207] [2024-11-08 16:25:33,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:33,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:25:33,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:33,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:25:33,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:25:33,192 INFO L87 Difference]: Start difference. First operand 10945 states and 16730 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:33,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:33,458 INFO L93 Difference]: Finished difference Result 29597 states and 45205 transitions. [2024-11-08 16:25:33,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:25:33,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2024-11-08 16:25:33,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:33,504 INFO L225 Difference]: With dead ends: 29597 [2024-11-08 16:25:33,504 INFO L226 Difference]: Without dead ends: 18671 [2024-11-08 16:25:33,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:25:33,522 INFO L432 NwaCegarLoop]: 827 mSDtfsCounter, 413 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 2060 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:33,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 2060 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:25:33,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18671 states. [2024-11-08 16:25:33,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18671 to 18669. [2024-11-08 16:25:33,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18669 states, 18668 states have (on average 1.5152131990572102) internal successors, (28286), 18668 states have internal predecessors, (28286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:34,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18669 states to 18669 states and 28286 transitions. [2024-11-08 16:25:34,041 INFO L78 Accepts]: Start accepts. Automaton has 18669 states and 28286 transitions. Word has length 160 [2024-11-08 16:25:34,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:34,042 INFO L471 AbstractCegarLoop]: Abstraction has 18669 states and 28286 transitions. [2024-11-08 16:25:34,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:34,042 INFO L276 IsEmpty]: Start isEmpty. Operand 18669 states and 28286 transitions. [2024-11-08 16:25:34,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-08 16:25:34,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:34,053 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:34,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:25:34,053 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:34,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:34,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1127720378, now seen corresponding path program 1 times [2024-11-08 16:25:34,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:34,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738877017] [2024-11-08 16:25:34,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:34,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:34,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:34,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:34,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:34,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738877017] [2024-11-08 16:25:34,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738877017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:34,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:34,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:25:34,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296465134] [2024-11-08 16:25:34,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:34,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:34,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:34,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:34,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:34,197 INFO L87 Difference]: Start difference. First operand 18669 states and 28286 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:34,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:34,597 INFO L93 Difference]: Finished difference Result 43025 states and 65107 transitions. [2024-11-08 16:25:34,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:34,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 161 [2024-11-08 16:25:34,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:34,679 INFO L225 Difference]: With dead ends: 43025 [2024-11-08 16:25:34,680 INFO L226 Difference]: Without dead ends: 26976 [2024-11-08 16:25:34,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:34,708 INFO L432 NwaCegarLoop]: 864 mSDtfsCounter, 455 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:34,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 1339 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:25:34,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26976 states. [2024-11-08 16:25:35,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26976 to 18669. [2024-11-08 16:25:35,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18669 states, 18668 states have (on average 1.515159631454896) internal successors, (28285), 18668 states have internal predecessors, (28285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:35,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18669 states to 18669 states and 28285 transitions. [2024-11-08 16:25:35,510 INFO L78 Accepts]: Start accepts. Automaton has 18669 states and 28285 transitions. Word has length 161 [2024-11-08 16:25:35,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:35,510 INFO L471 AbstractCegarLoop]: Abstraction has 18669 states and 28285 transitions. [2024-11-08 16:25:35,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:35,511 INFO L276 IsEmpty]: Start isEmpty. Operand 18669 states and 28285 transitions. [2024-11-08 16:25:35,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-08 16:25:35,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:35,521 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:35,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 16:25:35,521 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:35,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:35,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1030182154, now seen corresponding path program 1 times [2024-11-08 16:25:35,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:35,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160036894] [2024-11-08 16:25:35,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:35,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:35,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:35,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:35,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160036894] [2024-11-08 16:25:35,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160036894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:35,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:35,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:25:35,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758211098] [2024-11-08 16:25:35,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:35,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:35,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:35,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:35,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:35,844 INFO L87 Difference]: Start difference. First operand 18669 states and 28285 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:36,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:36,172 INFO L93 Difference]: Finished difference Result 50256 states and 76223 transitions. [2024-11-08 16:25:36,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:36,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 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 162 [2024-11-08 16:25:36,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:36,252 INFO L225 Difference]: With dead ends: 50256 [2024-11-08 16:25:36,252 INFO L226 Difference]: Without dead ends: 31952 [2024-11-08 16:25:36,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:36,281 INFO L432 NwaCegarLoop]: 891 mSDtfsCounter, 402 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:36,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 1328 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:25:36,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31952 states. [2024-11-08 16:25:37,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31952 to 31950. [2024-11-08 16:25:37,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31950 states, 31949 states have (on average 1.5030517387085667) internal successors, (48021), 31949 states have internal predecessors, (48021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:37,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31950 states to 31950 states and 48021 transitions. [2024-11-08 16:25:37,356 INFO L78 Accepts]: Start accepts. Automaton has 31950 states and 48021 transitions. Word has length 162 [2024-11-08 16:25:37,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:37,356 INFO L471 AbstractCegarLoop]: Abstraction has 31950 states and 48021 transitions. [2024-11-08 16:25:37,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:37,357 INFO L276 IsEmpty]: Start isEmpty. Operand 31950 states and 48021 transitions. [2024-11-08 16:25:37,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-08 16:25:37,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:37,371 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:37,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 16:25:37,371 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:37,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:37,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1706233581, now seen corresponding path program 1 times [2024-11-08 16:25:37,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:37,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686535047] [2024-11-08 16:25:37,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:37,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:38,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:38,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:38,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686535047] [2024-11-08 16:25:38,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686535047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:38,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:38,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:25:38,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747390782] [2024-11-08 16:25:38,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:38,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:25:38,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:38,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:25:38,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:25:38,251 INFO L87 Difference]: Start difference. First operand 31950 states and 48021 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:39,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:39,176 INFO L93 Difference]: Finished difference Result 154708 states and 232703 transitions. [2024-11-08 16:25:39,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:25:39,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 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 162 [2024-11-08 16:25:39,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:39,736 INFO L225 Difference]: With dead ends: 154708 [2024-11-08 16:25:39,736 INFO L226 Difference]: Without dead ends: 122805 [2024-11-08 16:25:39,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:25:39,824 INFO L432 NwaCegarLoop]: 807 mSDtfsCounter, 1331 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:39,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1331 Valid, 2093 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:25:39,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122805 states. [2024-11-08 16:25:41,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122805 to 61453. [2024-11-08 16:25:41,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61453 states, 61452 states have (on average 1.4927585757989976) internal successors, (91733), 61452 states have internal predecessors, (91733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:42,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61453 states to 61453 states and 91733 transitions. [2024-11-08 16:25:42,040 INFO L78 Accepts]: Start accepts. Automaton has 61453 states and 91733 transitions. Word has length 162 [2024-11-08 16:25:42,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:42,041 INFO L471 AbstractCegarLoop]: Abstraction has 61453 states and 91733 transitions. [2024-11-08 16:25:42,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:42,041 INFO L276 IsEmpty]: Start isEmpty. Operand 61453 states and 91733 transitions. [2024-11-08 16:25:42,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-08 16:25:42,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:42,071 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:42,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 16:25:42,072 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:42,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:42,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1633524539, now seen corresponding path program 1 times [2024-11-08 16:25:42,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:42,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254101639] [2024-11-08 16:25:42,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:42,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:42,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:42,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:42,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254101639] [2024-11-08 16:25:42,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254101639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:42,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:42,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:25:42,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195540468] [2024-11-08 16:25:42,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:42,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:42,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:42,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:42,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:42,225 INFO L87 Difference]: Start difference. First operand 61453 states and 91733 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:43,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:43,196 INFO L93 Difference]: Finished difference Result 122793 states and 183314 transitions. [2024-11-08 16:25:43,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:43,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 163 [2024-11-08 16:25:43,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:43,383 INFO L225 Difference]: With dead ends: 122793 [2024-11-08 16:25:43,383 INFO L226 Difference]: Without dead ends: 61461 [2024-11-08 16:25:43,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:43,462 INFO L432 NwaCegarLoop]: 481 mSDtfsCounter, 0 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:43,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 956 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:25:43,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61461 states. [2024-11-08 16:25:44,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61461 to 61461. [2024-11-08 16:25:44,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61461 states, 61460 states have (on average 1.4926944354051415) internal successors, (91741), 61460 states have internal predecessors, (91741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:44,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61461 states to 61461 states and 91741 transitions. [2024-11-08 16:25:44,691 INFO L78 Accepts]: Start accepts. Automaton has 61461 states and 91741 transitions. Word has length 163 [2024-11-08 16:25:44,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:44,691 INFO L471 AbstractCegarLoop]: Abstraction has 61461 states and 91741 transitions. [2024-11-08 16:25:44,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:44,692 INFO L276 IsEmpty]: Start isEmpty. Operand 61461 states and 91741 transitions. [2024-11-08 16:25:45,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-08 16:25:45,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:45,092 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:45,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 16:25:45,093 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:45,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:45,102 INFO L85 PathProgramCache]: Analyzing trace with hash 472633364, now seen corresponding path program 1 times [2024-11-08 16:25:45,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:45,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141256189] [2024-11-08 16:25:45,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:45,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:45,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:46,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:46,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:46,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141256189] [2024-11-08 16:25:46,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141256189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:46,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:46,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:25:46,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005895428] [2024-11-08 16:25:46,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:46,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:25:46,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:46,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:25:46,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:25:46,137 INFO L87 Difference]: Start difference. First operand 61461 states and 91741 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:46,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:46,761 INFO L93 Difference]: Finished difference Result 122875 states and 183416 transitions. [2024-11-08 16:25:46,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:25:46,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 0 states have call successors, (0), 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 164 [2024-11-08 16:25:46,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:46,893 INFO L225 Difference]: With dead ends: 122875 [2024-11-08 16:25:46,894 INFO L226 Difference]: Without dead ends: 61453 [2024-11-08 16:25:46,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:25:46,953 INFO L432 NwaCegarLoop]: 510 mSDtfsCounter, 14 mSDsluCounter, 981 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1491 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:46,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1491 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:25:47,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61453 states. [2024-11-08 16:25:48,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61453 to 61453. [2024-11-08 16:25:48,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61453 states, 61452 states have (on average 1.4926283928920132) internal successors, (91725), 61452 states have internal predecessors, (91725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:48,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61453 states to 61453 states and 91725 transitions. [2024-11-08 16:25:48,294 INFO L78 Accepts]: Start accepts. Automaton has 61453 states and 91725 transitions. Word has length 164 [2024-11-08 16:25:48,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:48,295 INFO L471 AbstractCegarLoop]: Abstraction has 61453 states and 91725 transitions. [2024-11-08 16:25:48,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:48,295 INFO L276 IsEmpty]: Start isEmpty. Operand 61453 states and 91725 transitions. [2024-11-08 16:25:48,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-08 16:25:48,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:48,318 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:48,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 16:25:48,318 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:48,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:48,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1817528234, now seen corresponding path program 1 times [2024-11-08 16:25:48,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:48,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383583512] [2024-11-08 16:25:48,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:48,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:48,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:48,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:48,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383583512] [2024-11-08 16:25:48,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383583512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:48,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:48,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:25:48,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556468363] [2024-11-08 16:25:48,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:48,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:48,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:48,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:48,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:48,482 INFO L87 Difference]: Start difference. First operand 61453 states and 91725 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:49,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:49,471 INFO L93 Difference]: Finished difference Result 147470 states and 219582 transitions. [2024-11-08 16:25:49,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:49,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 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 164 [2024-11-08 16:25:49,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:49,584 INFO L225 Difference]: With dead ends: 147470 [2024-11-08 16:25:49,584 INFO L226 Difference]: Without dead ends: 86910 [2024-11-08 16:25:49,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:49,637 INFO L432 NwaCegarLoop]: 890 mSDtfsCounter, 394 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:49,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 1316 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 16:25:49,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86910 states. [2024-11-08 16:25:50,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86910 to 86908. [2024-11-08 16:25:51,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86908 states, 86907 states have (on average 1.467338649360811) internal successors, (127522), 86907 states have internal predecessors, (127522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:51,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86908 states to 86908 states and 127522 transitions. [2024-11-08 16:25:51,169 INFO L78 Accepts]: Start accepts. Automaton has 86908 states and 127522 transitions. Word has length 164 [2024-11-08 16:25:51,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:51,170 INFO L471 AbstractCegarLoop]: Abstraction has 86908 states and 127522 transitions. [2024-11-08 16:25:51,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:51,170 INFO L276 IsEmpty]: Start isEmpty. Operand 86908 states and 127522 transitions. [2024-11-08 16:25:51,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-08 16:25:51,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:51,699 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:51,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 16:25:51,700 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:51,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:51,700 INFO L85 PathProgramCache]: Analyzing trace with hash 769035297, now seen corresponding path program 1 times [2024-11-08 16:25:51,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:51,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124266660] [2024-11-08 16:25:51,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:51,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:51,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:51,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:51,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124266660] [2024-11-08 16:25:51,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124266660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:51,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:51,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:25:51,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31848065] [2024-11-08 16:25:51,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:51,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:51,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:51,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:51,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:51,967 INFO L87 Difference]: Start difference. First operand 86908 states and 127522 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:52,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:52,975 INFO L93 Difference]: Finished difference Result 218303 states and 322608 transitions. [2024-11-08 16:25:52,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:52,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2024-11-08 16:25:52,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:53,188 INFO L225 Difference]: With dead ends: 218303 [2024-11-08 16:25:53,188 INFO L226 Difference]: Without dead ends: 144624 [2024-11-08 16:25:53,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:53,254 INFO L432 NwaCegarLoop]: 665 mSDtfsCounter, 290 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:53,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 1011 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:25:53,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144624 states. [2024-11-08 16:25:55,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144624 to 132672. [2024-11-08 16:25:55,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132672 states, 132671 states have (on average 1.4929487227804117) internal successors, (198071), 132671 states have internal predecessors, (198071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:55,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132672 states to 132672 states and 198071 transitions. [2024-11-08 16:25:55,678 INFO L78 Accepts]: Start accepts. Automaton has 132672 states and 198071 transitions. Word has length 166 [2024-11-08 16:25:55,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:55,678 INFO L471 AbstractCegarLoop]: Abstraction has 132672 states and 198071 transitions. [2024-11-08 16:25:55,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:55,679 INFO L276 IsEmpty]: Start isEmpty. Operand 132672 states and 198071 transitions. [2024-11-08 16:25:55,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-08 16:25:55,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:55,695 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:55,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 16:25:55,696 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:55,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:55,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1292228842, now seen corresponding path program 1 times [2024-11-08 16:25:55,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:55,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409049392] [2024-11-08 16:25:55,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:55,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:56,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:56,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:56,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409049392] [2024-11-08 16:25:56,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409049392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:56,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:56,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:25:56,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600587286] [2024-11-08 16:25:56,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:56,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:25:56,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:56,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:25:56,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:25:56,336 INFO L87 Difference]: Start difference. First operand 132672 states and 198071 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:57,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:57,713 INFO L93 Difference]: Finished difference Result 231683 states and 345602 transitions. [2024-11-08 16:25:57,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:25:57,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-08 16:25:57,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:57,887 INFO L225 Difference]: With dead ends: 231683 [2024-11-08 16:25:57,887 INFO L226 Difference]: Without dead ends: 120520 [2024-11-08 16:25:57,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:25:57,947 INFO L432 NwaCegarLoop]: 511 mSDtfsCounter, 17 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:57,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1490 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:25:58,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120520 states. [2024-11-08 16:26:00,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120520 to 120520. [2024-11-08 16:26:00,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120520 states, 120519 states have (on average 1.492411984832267) internal successors, (179864), 120519 states have internal predecessors, (179864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:26:00,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120520 states to 120520 states and 179864 transitions. [2024-11-08 16:26:00,934 INFO L78 Accepts]: Start accepts. Automaton has 120520 states and 179864 transitions. Word has length 169 [2024-11-08 16:26:00,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:26:00,935 INFO L471 AbstractCegarLoop]: Abstraction has 120520 states and 179864 transitions. [2024-11-08 16:26:00,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:26:00,935 INFO L276 IsEmpty]: Start isEmpty. Operand 120520 states and 179864 transitions. [2024-11-08 16:26:00,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-08 16:26:00,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:26:00,951 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:26:00,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 16:26:00,951 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:26:00,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:26:00,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1227356165, now seen corresponding path program 1 times [2024-11-08 16:26:00,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:26:00,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406910769] [2024-11-08 16:26:00,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:26:00,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:26:01,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:26:01,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:26:01,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:26:01,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406910769] [2024-11-08 16:26:01,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406910769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:26:01,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:26:01,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:26:01,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778958185] [2024-11-08 16:26:01,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:26:01,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:26:01,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:26:01,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:26:01,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:26:01,396 INFO L87 Difference]: Start difference. First operand 120520 states and 179864 transitions. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:26:02,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:26:02,012 INFO L93 Difference]: Finished difference Result 197290 states and 294569 transitions. [2024-11-08 16:26:02,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:26:02,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 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 174 [2024-11-08 16:26:02,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:26:02,153 INFO L225 Difference]: With dead ends: 197290 [2024-11-08 16:26:02,153 INFO L226 Difference]: Without dead ends: 111490 [2024-11-08 16:26:02,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:26:02,205 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 405 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:26:02,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 1306 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:26:02,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111490 states. [2024-11-08 16:26:04,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111490 to 111348. [2024-11-08 16:26:04,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111348 states, 111347 states have (on average 1.4919306312698142) internal successors, (166122), 111347 states have internal predecessors, (166122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:26:04,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111348 states to 111348 states and 166122 transitions. [2024-11-08 16:26:04,283 INFO L78 Accepts]: Start accepts. Automaton has 111348 states and 166122 transitions. Word has length 174 [2024-11-08 16:26:04,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:26:04,284 INFO L471 AbstractCegarLoop]: Abstraction has 111348 states and 166122 transitions. [2024-11-08 16:26:04,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:26:04,284 INFO L276 IsEmpty]: Start isEmpty. Operand 111348 states and 166122 transitions. [2024-11-08 16:26:04,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-08 16:26:04,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:26:04,302 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:26:04,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 16:26:04,302 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:26:04,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:26:04,303 INFO L85 PathProgramCache]: Analyzing trace with hash -2061387684, now seen corresponding path program 1 times [2024-11-08 16:26:04,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:26:04,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656942845] [2024-11-08 16:26:04,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:26:04,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:26:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:26:04,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:26:04,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:26:04,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656942845] [2024-11-08 16:26:04,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656942845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:26:04,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:26:04,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:26:04,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451862148] [2024-11-08 16:26:04,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:26:04,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:26:04,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:26:04,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:26:04,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:26:04,801 INFO L87 Difference]: Start difference. First operand 111348 states and 166122 transitions. Second operand has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:26:06,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:26:06,430 INFO L93 Difference]: Finished difference Result 230321 states and 343560 transitions. [2024-11-08 16:26:06,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:26:06,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2024-11-08 16:26:06,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:26:06,696 INFO L225 Difference]: With dead ends: 230321 [2024-11-08 16:26:06,696 INFO L226 Difference]: Without dead ends: 148234 [2024-11-08 16:26:06,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:26:06,777 INFO L432 NwaCegarLoop]: 770 mSDtfsCounter, 896 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:26:06,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 1578 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:26:06,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148234 states. [2024-11-08 16:26:08,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148234 to 111457. [2024-11-08 16:26:09,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111457 states, 111456 states have (on average 1.4916289836347976) internal successors, (166251), 111456 states have internal predecessors, (166251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:26:09,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111457 states to 111457 states and 166251 transitions. [2024-11-08 16:26:09,269 INFO L78 Accepts]: Start accepts. Automaton has 111457 states and 166251 transitions. Word has length 176 [2024-11-08 16:26:09,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:26:09,269 INFO L471 AbstractCegarLoop]: Abstraction has 111457 states and 166251 transitions. [2024-11-08 16:26:09,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:26:09,270 INFO L276 IsEmpty]: Start isEmpty. Operand 111457 states and 166251 transitions. [2024-11-08 16:26:09,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-08 16:26:09,282 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:26:09,283 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:26:09,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 16:26:09,283 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:26:09,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:26:09,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1650138646, now seen corresponding path program 1 times [2024-11-08 16:26:09,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:26:09,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811399321] [2024-11-08 16:26:09,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:26:09,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:26:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:26:09,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:26:09,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:26:09,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811399321] [2024-11-08 16:26:09,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811399321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:26:09,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:26:09,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:26:09,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937872168] [2024-11-08 16:26:09,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:26:09,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:26:09,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:26:09,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:26:09,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:26:09,426 INFO L87 Difference]: Start difference. First operand 111457 states and 166251 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:26:10,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:26:10,856 INFO L93 Difference]: Finished difference Result 222548 states and 332060 transitions. [2024-11-08 16:26:10,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:26:10,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 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 177 [2024-11-08 16:26:10,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:26:11,039 INFO L225 Difference]: With dead ends: 222548 [2024-11-08 16:26:11,039 INFO L226 Difference]: Without dead ends: 111479 [2024-11-08 16:26:11,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:26:11,108 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 0 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:26:11,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 946 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:26:11,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111479 states. [2024-11-08 16:26:12,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111479 to 111479. [2024-11-08 16:26:12,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111479 states, 111478 states have (on average 1.4915319614632483) internal successors, (166273), 111478 states have internal predecessors, (166273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:26:13,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111479 states to 111479 states and 166273 transitions. [2024-11-08 16:26:13,109 INFO L78 Accepts]: Start accepts. Automaton has 111479 states and 166273 transitions. Word has length 177 [2024-11-08 16:26:13,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:26:13,110 INFO L471 AbstractCegarLoop]: Abstraction has 111479 states and 166273 transitions. [2024-11-08 16:26:13,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:26:13,110 INFO L276 IsEmpty]: Start isEmpty. Operand 111479 states and 166273 transitions. [2024-11-08 16:26:13,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-08 16:26:13,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:26:13,122 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:26:13,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 16:26:13,123 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:26:13,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:26:13,123 INFO L85 PathProgramCache]: Analyzing trace with hash -332451980, now seen corresponding path program 1 times [2024-11-08 16:26:13,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:26:13,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144176049] [2024-11-08 16:26:13,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:26:13,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:26:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:26:13,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:26:13,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:26:13,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144176049] [2024-11-08 16:26:13,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144176049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:26:13,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:26:13,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:26:13,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312428484] [2024-11-08 16:26:13,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:26:13,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:26:13,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:26:13,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:26:13,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:26:13,462 INFO L87 Difference]: Start difference. First operand 111479 states and 166273 transitions. Second operand has 5 states, 5 states have (on average 35.6) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:26:15,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:26:15,335 INFO L93 Difference]: Finished difference Result 211408 states and 315787 transitions. [2024-11-08 16:26:15,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:26:15,336 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2024-11-08 16:26:15,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:26:15,541 INFO L225 Difference]: With dead ends: 211408 [2024-11-08 16:26:15,542 INFO L226 Difference]: Without dead ends: 111479 [2024-11-08 16:26:15,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:26:15,603 INFO L432 NwaCegarLoop]: 368 mSDtfsCounter, 1231 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:26:15,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1231 Valid, 460 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:26:15,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111479 states.