./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac46417-17bc-453e-ba7a-571d0fc9fcb1/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac46417-17bc-453e-ba7a-571d0fc9fcb1/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_eac46417-17bc-453e-ba7a-571d0fc9fcb1/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac46417-17bc-453e-ba7a-571d0fc9fcb1/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac46417-17bc-453e-ba7a-571d0fc9fcb1/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_eac46417-17bc-453e-ba7a-571d0fc9fcb1/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 d9dc4c1afb888b23c0ebc469c8090d62842d0a0c5570d5e56681453b5bd49afb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:33:26,413 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:33:26,505 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac46417-17bc-453e-ba7a-571d0fc9fcb1/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:33:26,512 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:33:26,513 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:33:26,553 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:33:26,554 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:33:26,555 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:33:26,556 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:33:26,557 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:33:26,558 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:33:26,560 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:33:26,561 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:33:26,561 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:33:26,562 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:33:26,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:33:26,567 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:33:26,567 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:33:26,567 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:33:26,568 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:33:26,568 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:33:26,569 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:33:26,569 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:33:26,570 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:33:26,571 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:33:26,571 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:33:26,572 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:33:26,572 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:33:26,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:33:26,573 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:33:26,574 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:33:26,574 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:33:26,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:33:26,576 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:33:26,576 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:33:26,576 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:33:26,577 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:33:26,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:33:26,577 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:33:26,578 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:33:26,578 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:33:26,579 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:33:26,579 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_eac46417-17bc-453e-ba7a-571d0fc9fcb1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac46417-17bc-453e-ba7a-571d0fc9fcb1/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9dc4c1afb888b23c0ebc469c8090d62842d0a0c5570d5e56681453b5bd49afb [2024-11-08 18:33:26,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:33:26,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:33:26,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:33:26,899 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:33:26,900 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:33:26,901 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac46417-17bc-453e-ba7a-571d0fc9fcb1/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+lhb-reducer.c Unable to find full path for "g++" [2024-11-08 18:33:28,971 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:33:29,329 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:33:29,329 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac46417-17bc-453e-ba7a-571d0fc9fcb1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+lhb-reducer.c [2024-11-08 18:33:29,343 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac46417-17bc-453e-ba7a-571d0fc9fcb1/bin/uautomizer-verify-jihMAELWvX/data/da05f8310/05b7a38fd9fb448085af939cbbbf9d01/FLAGd923a77eb [2024-11-08 18:33:29,361 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac46417-17bc-453e-ba7a-571d0fc9fcb1/bin/uautomizer-verify-jihMAELWvX/data/da05f8310/05b7a38fd9fb448085af939cbbbf9d01 [2024-11-08 18:33:29,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:33:29,366 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:33:29,369 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:33:29,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:33:29,376 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:33:29,377 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:33:29" (1/1) ... [2024-11-08 18:33:29,378 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@215e6dc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:29, skipping insertion in model container [2024-11-08 18:33:29,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:33:29" (1/1) ... [2024-11-08 18:33:29,460 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:33:29,859 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_eac46417-17bc-453e-ba7a-571d0fc9fcb1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+lhb-reducer.c[15364,15377] [2024-11-08 18:33:30,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:33:30,021 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:33:30,175 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_eac46417-17bc-453e-ba7a-571d0fc9fcb1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+lhb-reducer.c[15364,15377] [2024-11-08 18:33:30,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:33:30,336 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:33:30,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:30 WrapperNode [2024-11-08 18:33:30,337 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:33:30,338 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:33:30,339 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:33:30,339 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:33:30,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:30" (1/1) ... [2024-11-08 18:33:30,364 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:30" (1/1) ... [2024-11-08 18:33:30,445 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1712 [2024-11-08 18:33:30,445 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:33:30,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:33:30,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:33:30,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:33:30,470 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:30" (1/1) ... [2024-11-08 18:33:30,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:30" (1/1) ... [2024-11-08 18:33:30,477 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:30" (1/1) ... [2024-11-08 18:33:30,519 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 18:33:30,520 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:30" (1/1) ... [2024-11-08 18:33:30,520 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:30" (1/1) ... [2024-11-08 18:33:30,549 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:30" (1/1) ... [2024-11-08 18:33:30,574 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:30" (1/1) ... [2024-11-08 18:33:30,580 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:30" (1/1) ... [2024-11-08 18:33:30,589 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:30" (1/1) ... [2024-11-08 18:33:30,599 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:33:30,600 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:33:30,601 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:33:30,601 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:33:30,602 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:30" (1/1) ... [2024-11-08 18:33:30,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:33:30,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac46417-17bc-453e-ba7a-571d0fc9fcb1/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:33:30,638 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac46417-17bc-453e-ba7a-571d0fc9fcb1/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:33:30,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac46417-17bc-453e-ba7a-571d0fc9fcb1/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:33:30,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:33:30,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:33:30,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:33:30,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:33:30,861 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:33:30,864 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:33:32,412 INFO L? ?]: Removed 222 outVars from TransFormulas that were not future-live. [2024-11-08 18:33:32,413 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:33:32,446 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:33:32,449 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:33:32,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:33:32 BoogieIcfgContainer [2024-11-08 18:33:32,453 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:33:32,456 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:33:32,456 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:33:32,462 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:33:32,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:33:29" (1/3) ... [2024-11-08 18:33:32,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7421da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:33:32, skipping insertion in model container [2024-11-08 18:33:32,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:33:30" (2/3) ... [2024-11-08 18:33:32,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7421da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:33:32, skipping insertion in model container [2024-11-08 18:33:32,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:33:32" (3/3) ... [2024-11-08 18:33:32,465 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+lhb-reducer.c [2024-11-08 18:33:32,487 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:33:32,487 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:33:32,590 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:33:32,602 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;@254544fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:33:32,602 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:33:32,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 487 states, 485 states have (on average 1.6494845360824741) internal successors, (800), 486 states have internal predecessors, (800), 0 states have call successors, (0), 0 states 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 18:33:32,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 18:33:32,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:32,634 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] [2024-11-08 18:33:32,635 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:32,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:32,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1982597538, now seen corresponding path program 1 times [2024-11-08 18:33:32,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:32,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360617877] [2024-11-08 18:33:32,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:32,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:33,414 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 18:33:33,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:33,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360617877] [2024-11-08 18:33:33,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360617877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:33,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:33,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:33:33,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646156174] [2024-11-08 18:33:33,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:33,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:33:33,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:33,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:33:33,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:33:33,468 INFO L87 Difference]: Start difference. First operand has 487 states, 485 states have (on average 1.6494845360824741) internal successors, (800), 486 states have internal predecessors, (800), 0 states have call successors, (0), 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 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states 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 18:33:33,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:33,712 INFO L93 Difference]: Finished difference Result 932 states and 1517 transitions. [2024-11-08 18:33:33,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:33:33,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2024-11-08 18:33:33,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:33,737 INFO L225 Difference]: With dead ends: 932 [2024-11-08 18:33:33,737 INFO L226 Difference]: Without dead ends: 484 [2024-11-08 18:33:33,742 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 18:33:33,748 INFO L432 NwaCegarLoop]: 795 mSDtfsCounter, 175 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:33,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 2153 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:33:33,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2024-11-08 18:33:33,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2024-11-08 18:33:33,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 483 states have (on average 1.5486542443064182) internal successors, (748), 483 states have internal predecessors, (748), 0 states have call successors, (0), 0 states 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 18:33:33,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 748 transitions. [2024-11-08 18:33:33,832 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 748 transitions. Word has length 119 [2024-11-08 18:33:33,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:33,832 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 748 transitions. [2024-11-08 18:33:33,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states 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 18:33:33,833 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 748 transitions. [2024-11-08 18:33:33,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-08 18:33:33,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:33,842 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 18:33:33,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:33:33,845 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:33,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:33,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1369129713, now seen corresponding path program 1 times [2024-11-08 18:33:33,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:33,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519379166] [2024-11-08 18:33:33,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:33,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:34,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:33:34,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:34,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519379166] [2024-11-08 18:33:34,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519379166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:34,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:34,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:33:34,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520266549] [2024-11-08 18:33:34,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:34,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:33:34,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:34,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:33:34,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:33:34,139 INFO L87 Difference]: Start difference. First operand 484 states and 748 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 18:33:34,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:34,211 INFO L93 Difference]: Finished difference Result 1159 states and 1827 transitions. [2024-11-08 18:33:34,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:33:34,213 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 18:33:34,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:34,218 INFO L225 Difference]: With dead ends: 1159 [2024-11-08 18:33:34,219 INFO L226 Difference]: Without dead ends: 746 [2024-11-08 18:33:34,220 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 18:33:34,221 INFO L432 NwaCegarLoop]: 884 mSDtfsCounter, 505 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:34,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 1486 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:33:34,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2024-11-08 18:33:34,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2024-11-08 18:33:34,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 743 states have (on average 1.5625841184387619) internal successors, (1161), 743 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states 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 18:33:34,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1161 transitions. [2024-11-08 18:33:34,274 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1161 transitions. Word has length 159 [2024-11-08 18:33:34,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:34,275 INFO L471 AbstractCegarLoop]: Abstraction has 744 states and 1161 transitions. [2024-11-08 18:33:34,275 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 18:33:34,275 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1161 transitions. [2024-11-08 18:33:34,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-08 18:33:34,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:34,306 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 18:33:34,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:33:34,307 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:34,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:34,308 INFO L85 PathProgramCache]: Analyzing trace with hash -319550929, now seen corresponding path program 1 times [2024-11-08 18:33:34,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:34,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871740044] [2024-11-08 18:33:34,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:34,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:34,607 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 18:33:34,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:34,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871740044] [2024-11-08 18:33:34,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871740044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:34,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:34,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:33:34,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258111572] [2024-11-08 18:33:34,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:34,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:33:34,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:34,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:33:34,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:33:34,616 INFO L87 Difference]: Start difference. First operand 744 states and 1161 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 18:33:34,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:34,713 INFO L93 Difference]: Finished difference Result 1863 states and 2947 transitions. [2024-11-08 18:33:34,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:33:34,714 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 18:33:34,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:34,719 INFO L225 Difference]: With dead ends: 1863 [2024-11-08 18:33:34,719 INFO L226 Difference]: Without dead ends: 1203 [2024-11-08 18:33:34,721 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 18:33:34,723 INFO L432 NwaCegarLoop]: 725 mSDtfsCounter, 491 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 1302 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:34,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 1302 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:33:34,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2024-11-08 18:33:34,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1201. [2024-11-08 18:33:34,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 1200 states have (on average 1.5708333333333333) internal successors, (1885), 1200 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states 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 18:33:34,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1885 transitions. [2024-11-08 18:33:34,768 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1885 transitions. Word has length 161 [2024-11-08 18:33:34,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:34,769 INFO L471 AbstractCegarLoop]: Abstraction has 1201 states and 1885 transitions. [2024-11-08 18:33:34,770 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 18:33:34,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1885 transitions. [2024-11-08 18:33:34,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-08 18:33:34,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:34,776 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:33:34,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:33:34,777 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:34,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:34,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1930829335, now seen corresponding path program 1 times [2024-11-08 18:33:34,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:34,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672284371] [2024-11-08 18:33:34,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:34,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:34,948 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 18:33:34,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:34,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672284371] [2024-11-08 18:33:34,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672284371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:34,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:34,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:33:34,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370955687] [2024-11-08 18:33:34,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:34,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:33:34,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:34,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:33:34,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:33:34,953 INFO L87 Difference]: Start difference. First operand 1201 states and 1885 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 18:33:35,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:35,028 INFO L93 Difference]: Finished difference Result 3090 states and 4890 transitions. [2024-11-08 18:33:35,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:33:35,029 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 18:33:35,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:35,038 INFO L225 Difference]: With dead ends: 3090 [2024-11-08 18:33:35,038 INFO L226 Difference]: Without dead ends: 1986 [2024-11-08 18:33:35,041 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 18:33:35,042 INFO L432 NwaCegarLoop]: 715 mSDtfsCounter, 476 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:35,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 1267 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:33:35,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1986 states. [2024-11-08 18:33:35,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1986 to 1984. [2024-11-08 18:33:35,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1984 states, 1983 states have (on average 1.572869389813414) internal successors, (3119), 1983 states have internal predecessors, (3119), 0 states have call successors, (0), 0 states 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 18:33:35,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 3119 transitions. [2024-11-08 18:33:35,119 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 3119 transitions. Word has length 163 [2024-11-08 18:33:35,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:35,120 INFO L471 AbstractCegarLoop]: Abstraction has 1984 states and 3119 transitions. [2024-11-08 18:33:35,120 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 18:33:35,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 3119 transitions. [2024-11-08 18:33:35,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-08 18:33:35,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:35,127 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] [2024-11-08 18:33:35,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:33:35,127 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:35,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:35,128 INFO L85 PathProgramCache]: Analyzing trace with hash -329393929, now seen corresponding path program 1 times [2024-11-08 18:33:35,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:35,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711044471] [2024-11-08 18:33:35,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:35,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:35,284 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 18:33:35,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:35,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711044471] [2024-11-08 18:33:35,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711044471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:35,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:35,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:33:35,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386760965] [2024-11-08 18:33:35,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:35,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:33:35,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:35,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:33:35,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:33:35,290 INFO L87 Difference]: Start difference. First operand 1984 states and 3119 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 18:33:35,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:35,359 INFO L93 Difference]: Finished difference Result 5159 states and 8143 transitions. [2024-11-08 18:33:35,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:33:35,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2024-11-08 18:33:35,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:35,369 INFO L225 Difference]: With dead ends: 5159 [2024-11-08 18:33:35,369 INFO L226 Difference]: Without dead ends: 3285 [2024-11-08 18:33:35,374 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 18:33:35,375 INFO L432 NwaCegarLoop]: 854 mSDtfsCounter, 460 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:35,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 1381 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:33:35,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3285 states. [2024-11-08 18:33:35,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3285 to 3283. [2024-11-08 18:33:35,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3283 states, 3282 states have (on average 1.568860450944546) internal successors, (5149), 3282 states have internal predecessors, (5149), 0 states have call successors, (0), 0 states 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 18:33:35,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 5149 transitions. [2024-11-08 18:33:35,455 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 5149 transitions. Word has length 165 [2024-11-08 18:33:35,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:35,456 INFO L471 AbstractCegarLoop]: Abstraction has 3283 states and 5149 transitions. [2024-11-08 18:33:35,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 18:33:35,457 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 5149 transitions. [2024-11-08 18:33:35,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-08 18:33:35,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:35,464 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] [2024-11-08 18:33:35,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:33:35,464 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:35,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:35,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1942661269, now seen corresponding path program 1 times [2024-11-08 18:33:35,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:35,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960175784] [2024-11-08 18:33:35,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:35,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:35,633 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 18:33:35,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:35,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960175784] [2024-11-08 18:33:35,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960175784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:35,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:35,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:33:35,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591214142] [2024-11-08 18:33:35,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:35,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:33:35,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:35,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:33:35,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:33:35,636 INFO L87 Difference]: Start difference. First operand 3283 states and 5149 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states 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 18:33:35,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:35,778 INFO L93 Difference]: Finished difference Result 8504 states and 13344 transitions. [2024-11-08 18:33:35,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:33:35,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 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 167 [2024-11-08 18:33:35,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:35,795 INFO L225 Difference]: With dead ends: 8504 [2024-11-08 18:33:35,795 INFO L226 Difference]: Without dead ends: 5344 [2024-11-08 18:33:35,799 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 18:33:35,800 INFO L432 NwaCegarLoop]: 844 mSDtfsCounter, 445 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:35,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 1346 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:33:35,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2024-11-08 18:33:35,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5342. [2024-11-08 18:33:35,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5342 states, 5341 states have (on average 1.5583224115334207) internal successors, (8323), 5341 states have internal predecessors, (8323), 0 states have call successors, (0), 0 states 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 18:33:35,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5342 states to 5342 states and 8323 transitions. [2024-11-08 18:33:35,942 INFO L78 Accepts]: Start accepts. Automaton has 5342 states and 8323 transitions. Word has length 167 [2024-11-08 18:33:35,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:35,943 INFO L471 AbstractCegarLoop]: Abstraction has 5342 states and 8323 transitions. [2024-11-08 18:33:35,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states 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 18:33:35,943 INFO L276 IsEmpty]: Start isEmpty. Operand 5342 states and 8323 transitions. [2024-11-08 18:33:35,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-08 18:33:35,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:35,953 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 18:33:35,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:33:35,954 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:35,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:35,955 INFO L85 PathProgramCache]: Analyzing trace with hash 667335103, now seen corresponding path program 1 times [2024-11-08 18:33:35,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:35,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580371449] [2024-11-08 18:33:35,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:35,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:36,329 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 18:33:36,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:36,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580371449] [2024-11-08 18:33:36,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580371449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:36,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:36,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:33:36,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82371845] [2024-11-08 18:33:36,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:36,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:33:36,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:36,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:33:36,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:33:36,333 INFO L87 Difference]: Start difference. First operand 5342 states and 8323 transitions. Second operand has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 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 18:33:37,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:37,044 INFO L93 Difference]: Finished difference Result 36365 states and 56593 transitions. [2024-11-08 18:33:37,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:33:37,045 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 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 18:33:37,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:37,145 INFO L225 Difference]: With dead ends: 36365 [2024-11-08 18:33:37,146 INFO L226 Difference]: Without dead ends: 31150 [2024-11-08 18:33:37,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:33:37,162 INFO L432 NwaCegarLoop]: 698 mSDtfsCounter, 8353 mSDsluCounter, 6304 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8353 SdHoareTripleChecker+Valid, 7002 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:37,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8353 Valid, 7002 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:33:37,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31150 states. [2024-11-08 18:33:37,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31150 to 10625. [2024-11-08 18:33:37,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10625 states, 10624 states have (on average 1.5423569277108433) internal successors, (16386), 10624 states have internal predecessors, (16386), 0 states have call successors, (0), 0 states 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 18:33:37,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10625 states to 10625 states and 16386 transitions. [2024-11-08 18:33:37,777 INFO L78 Accepts]: Start accepts. Automaton has 10625 states and 16386 transitions. Word has length 169 [2024-11-08 18:33:37,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:37,778 INFO L471 AbstractCegarLoop]: Abstraction has 10625 states and 16386 transitions. [2024-11-08 18:33:37,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 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 18:33:37,779 INFO L276 IsEmpty]: Start isEmpty. Operand 10625 states and 16386 transitions. [2024-11-08 18:33:37,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-08 18:33:37,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:37,836 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] [2024-11-08 18:33:37,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:33:37,837 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:37,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:37,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1376750317, now seen corresponding path program 1 times [2024-11-08 18:33:37,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:37,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879959451] [2024-11-08 18:33:37,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:37,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:37,968 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 18:33:37,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:37,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879959451] [2024-11-08 18:33:37,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879959451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:37,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:37,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:33:37,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158250591] [2024-11-08 18:33:37,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:37,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:33:37,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:37,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:33:37,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:33:37,975 INFO L87 Difference]: Start difference. First operand 10625 states and 16386 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states 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 18:33:38,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:38,135 INFO L93 Difference]: Finished difference Result 30001 states and 46188 transitions. [2024-11-08 18:33:38,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:33:38,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2024-11-08 18:33:38,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:38,170 INFO L225 Difference]: With dead ends: 30001 [2024-11-08 18:33:38,170 INFO L226 Difference]: Without dead ends: 19429 [2024-11-08 18:33:38,183 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 18:33:38,185 INFO L432 NwaCegarLoop]: 995 mSDtfsCounter, 501 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:38,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 1594 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:33:38,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19429 states. [2024-11-08 18:33:38,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19429 to 19427. [2024-11-08 18:33:38,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19427 states, 19426 states have (on average 1.530371666838258) internal successors, (29729), 19426 states have internal predecessors, (29729), 0 states have call successors, (0), 0 states 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 18:33:38,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19427 states to 19427 states and 29729 transitions. [2024-11-08 18:33:38,658 INFO L78 Accepts]: Start accepts. Automaton has 19427 states and 29729 transitions. Word has length 172 [2024-11-08 18:33:38,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:38,658 INFO L471 AbstractCegarLoop]: Abstraction has 19427 states and 29729 transitions. [2024-11-08 18:33:38,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states 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 18:33:38,659 INFO L276 IsEmpty]: Start isEmpty. Operand 19427 states and 29729 transitions. [2024-11-08 18:33:38,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-08 18:33:38,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:38,693 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] [2024-11-08 18:33:38,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:33:38,693 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:38,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:38,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1365392284, now seen corresponding path program 1 times [2024-11-08 18:33:38,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:38,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675072895] [2024-11-08 18:33:38,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:38,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:38,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:38,847 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 18:33:38,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:38,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675072895] [2024-11-08 18:33:38,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675072895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:38,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:38,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:33:38,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825852622] [2024-11-08 18:33:38,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:38,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:33:38,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:38,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:33:38,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:33:38,851 INFO L87 Difference]: Start difference. First operand 19427 states and 29729 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states 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 18:33:39,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:39,275 INFO L93 Difference]: Finished difference Result 55497 states and 84710 transitions. [2024-11-08 18:33:39,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:33:39,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-08 18:33:39,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:39,356 INFO L225 Difference]: With dead ends: 55497 [2024-11-08 18:33:39,356 INFO L226 Difference]: Without dead ends: 36971 [2024-11-08 18:33:39,381 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 18:33:39,383 INFO L432 NwaCegarLoop]: 680 mSDtfsCounter, 496 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:39,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 1317 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:33:39,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36971 states. [2024-11-08 18:33:40,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36971 to 36969. [2024-11-08 18:33:40,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36969 states, 36968 states have (on average 1.517447522181346) internal successors, (56097), 36968 states have internal predecessors, (56097), 0 states have call successors, (0), 0 states 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 18:33:40,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36969 states to 36969 states and 56097 transitions. [2024-11-08 18:33:40,235 INFO L78 Accepts]: Start accepts. Automaton has 36969 states and 56097 transitions. Word has length 173 [2024-11-08 18:33:40,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:40,236 INFO L471 AbstractCegarLoop]: Abstraction has 36969 states and 56097 transitions. [2024-11-08 18:33:40,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states 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 18:33:40,236 INFO L276 IsEmpty]: Start isEmpty. Operand 36969 states and 56097 transitions. [2024-11-08 18:33:40,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-08 18:33:40,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:40,299 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] [2024-11-08 18:33:40,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:33:40,300 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:40,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:40,300 INFO L85 PathProgramCache]: Analyzing trace with hash 951048055, now seen corresponding path program 1 times [2024-11-08 18:33:40,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:40,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661747574] [2024-11-08 18:33:40,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:40,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:41,141 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 18:33:41,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:41,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661747574] [2024-11-08 18:33:41,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661747574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:41,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:41,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:33:41,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315059096] [2024-11-08 18:33:41,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:41,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:33:41,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:41,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:33:41,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:33:41,147 INFO L87 Difference]: Start difference. First operand 36969 states and 56097 transitions. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states 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 18:33:42,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:42,626 INFO L93 Difference]: Finished difference Result 157407 states and 235701 transitions. [2024-11-08 18:33:42,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:33:42,627 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-08 18:33:42,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:42,974 INFO L225 Difference]: With dead ends: 157407 [2024-11-08 18:33:42,975 INFO L226 Difference]: Without dead ends: 122147 [2024-11-08 18:33:43,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:33:43,039 INFO L432 NwaCegarLoop]: 1816 mSDtfsCounter, 4379 mSDsluCounter, 2758 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4379 SdHoareTripleChecker+Valid, 4574 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:43,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4379 Valid, 4574 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:33:43,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122147 states. [2024-11-08 18:33:45,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122147 to 115409. [2024-11-08 18:33:45,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115409 states, 115408 states have (on average 1.4891255372244558) internal successors, (171857), 115408 states have internal predecessors, (171857), 0 states have call successors, (0), 0 states 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 18:33:45,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115409 states to 115409 states and 171857 transitions. [2024-11-08 18:33:45,900 INFO L78 Accepts]: Start accepts. Automaton has 115409 states and 171857 transitions. Word has length 173 [2024-11-08 18:33:45,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:45,900 INFO L471 AbstractCegarLoop]: Abstraction has 115409 states and 171857 transitions. [2024-11-08 18:33:45,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states 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 18:33:45,900 INFO L276 IsEmpty]: Start isEmpty. Operand 115409 states and 171857 transitions. [2024-11-08 18:33:46,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-08 18:33:46,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:46,137 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 18:33:46,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:33:46,138 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:46,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:46,138 INFO L85 PathProgramCache]: Analyzing trace with hash -81970920, now seen corresponding path program 1 times [2024-11-08 18:33:46,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:46,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734380992] [2024-11-08 18:33:46,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:46,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:46,289 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 18:33:46,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:46,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734380992] [2024-11-08 18:33:46,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734380992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:46,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:46,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:33:46,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020002568] [2024-11-08 18:33:46,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:46,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:33:46,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:46,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:33:46,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:33:46,294 INFO L87 Difference]: Start difference. First operand 115409 states and 171857 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 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 18:33:47,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:47,574 INFO L93 Difference]: Finished difference Result 286120 states and 425944 transitions. [2024-11-08 18:33:47,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:33:47,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 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 18:33:47,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:47,844 INFO L225 Difference]: With dead ends: 286120 [2024-11-08 18:33:47,845 INFO L226 Difference]: Without dead ends: 200457 [2024-11-08 18:33:47,910 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 18:33:47,911 INFO L432 NwaCegarLoop]: 1049 mSDtfsCounter, 520 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 1682 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:47,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 1682 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:33:48,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200457 states. [2024-11-08 18:33:51,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200457 to 200455. [2024-11-08 18:33:51,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200455 states, 200454 states have (on average 1.4778053817833519) internal successors, (296232), 200454 states have internal predecessors, (296232), 0 states have call successors, (0), 0 states 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 18:33:51,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200455 states to 200455 states and 296232 transitions. [2024-11-08 18:33:51,999 INFO L78 Accepts]: Start accepts. Automaton has 200455 states and 296232 transitions. Word has length 176 [2024-11-08 18:33:51,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:33:51,999 INFO L471 AbstractCegarLoop]: Abstraction has 200455 states and 296232 transitions. [2024-11-08 18:33:51,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 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 18:33:51,999 INFO L276 IsEmpty]: Start isEmpty. Operand 200455 states and 296232 transitions. [2024-11-08 18:33:52,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-08 18:33:52,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:33:52,231 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 18:33:52,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:33:52,232 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:33:52,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:33:52,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1029314393, now seen corresponding path program 1 times [2024-11-08 18:33:52,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:33:52,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851574682] [2024-11-08 18:33:52,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:52,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:33:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:52,376 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 18:33:52,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:33:52,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851574682] [2024-11-08 18:33:52,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851574682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:33:52,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:33:52,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:33:52,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500033315] [2024-11-08 18:33:52,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:33:52,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:33:52,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:33:52,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:33:52,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:33:52,379 INFO L87 Difference]: Start difference. First operand 200455 states and 296232 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 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 18:33:54,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:33:54,992 INFO L93 Difference]: Finished difference Result 464975 states and 687032 transitions. [2024-11-08 18:33:54,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:33:54,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 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 18:33:54,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:33:55,528 INFO L225 Difference]: With dead ends: 464975 [2024-11-08 18:33:55,529 INFO L226 Difference]: Without dead ends: 331205 [2024-11-08 18:33:55,614 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 18:33:55,615 INFO L432 NwaCegarLoop]: 1179 mSDtfsCounter, 499 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 1812 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:33:55,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 1812 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:33:55,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331205 states. [2024-11-08 18:34:00,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331205 to 331203. [2024-11-08 18:34:00,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331203 states, 331202 states have (on average 1.466639694204745) internal successors, (485754), 331202 states have internal predecessors, (485754), 0 states have call successors, (0), 0 states 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 18:34:01,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331203 states to 331203 states and 485754 transitions. [2024-11-08 18:34:01,052 INFO L78 Accepts]: Start accepts. Automaton has 331203 states and 485754 transitions. Word has length 176 [2024-11-08 18:34:01,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:01,053 INFO L471 AbstractCegarLoop]: Abstraction has 331203 states and 485754 transitions. [2024-11-08 18:34:01,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 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 18:34:01,053 INFO L276 IsEmpty]: Start isEmpty. Operand 331203 states and 485754 transitions. [2024-11-08 18:34:02,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-08 18:34:02,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:02,379 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 18:34:02,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:34:02,380 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:02,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:02,380 INFO L85 PathProgramCache]: Analyzing trace with hash 714009018, now seen corresponding path program 1 times [2024-11-08 18:34:02,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:02,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482403051] [2024-11-08 18:34:02,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:02,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:02,576 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 18:34:02,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:02,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482403051] [2024-11-08 18:34:02,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482403051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:02,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:02,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:34:02,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415461510] [2024-11-08 18:34:02,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:02,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:34:02,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:02,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:34:02,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:34:02,579 INFO L87 Difference]: Start difference. First operand 331203 states and 485754 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 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 18:34:04,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:04,888 INFO L93 Difference]: Finished difference Result 705193 states and 1032239 transitions. [2024-11-08 18:34:04,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:34:04,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 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 18:34:04,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:05,444 INFO L225 Difference]: With dead ends: 705193 [2024-11-08 18:34:05,444 INFO L226 Difference]: Without dead ends: 510655 [2024-11-08 18:34:05,604 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 18:34:05,605 INFO L432 NwaCegarLoop]: 1171 mSDtfsCounter, 480 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:05,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 1804 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:34:06,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510655 states.