./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.6.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_b1f339e0-e26a-45cf-81a8-e5d1e0db7d12/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f339e0-e26a-45cf-81a8-e5d1e0db7d12/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_b1f339e0-e26a-45cf-81a8-e5d1e0db7d12/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f339e0-e26a-45cf-81a8-e5d1e0db7d12/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.6.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f339e0-e26a-45cf-81a8-e5d1e0db7d12/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f339e0-e26a-45cf-81a8-e5d1e0db7d12/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 64bit --witnessprinter.graph.data.programhash 6a484727eb616ee76817daaddc4ab03945c8b905e914aab4dd3a2ea0e0164e7f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:49:36,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:49:36,471 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f339e0-e26a-45cf-81a8-e5d1e0db7d12/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-08 18:49:36,475 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:49:36,476 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:49:36,519 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:49:36,519 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:49:36,520 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:49:36,520 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:49:36,521 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:49:36,521 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:49:36,521 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:49:36,522 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:49:36,524 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:49:36,524 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:49:36,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:49:36,526 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:49:36,528 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:49:36,528 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:49:36,528 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:49:36,529 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:49:36,534 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:49:36,534 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:49:36,534 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:49:36,534 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:49:36,535 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:49:36,535 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:49:36,535 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:49:36,536 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:49:36,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:49:36,536 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:49:36,536 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:49:36,537 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:49:36,537 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:49:36,537 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:49:36,540 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:49:36,540 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:49:36,541 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:49:36,541 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:49:36,541 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_b1f339e0-e26a-45cf-81a8-e5d1e0db7d12/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f339e0-e26a-45cf-81a8-e5d1e0db7d12/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a484727eb616ee76817daaddc4ab03945c8b905e914aab4dd3a2ea0e0164e7f [2024-11-08 18:49:36,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:49:36,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:49:36,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:49:36,886 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:49:36,887 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:49:36,888 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f339e0-e26a-45cf-81a8-e5d1e0db7d12/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.6.prop1-func-interl.c Unable to find full path for "g++" [2024-11-08 18:49:38,821 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:49:39,366 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:49:39,367 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f339e0-e26a-45cf-81a8-e5d1e0db7d12/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.6.prop1-func-interl.c [2024-11-08 18:49:39,418 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f339e0-e26a-45cf-81a8-e5d1e0db7d12/bin/uautomizer-verify-jihMAELWvX/data/804edb3f6/edbca6ebee944f209a01e3206e978f81/FLAG237a2b79c [2024-11-08 18:49:39,432 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f339e0-e26a-45cf-81a8-e5d1e0db7d12/bin/uautomizer-verify-jihMAELWvX/data/804edb3f6/edbca6ebee944f209a01e3206e978f81 [2024-11-08 18:49:39,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:49:39,436 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:49:39,438 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:49:39,438 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:49:39,445 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:49:39,446 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:49:39" (1/1) ... [2024-11-08 18:49:39,448 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b644e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:39, skipping insertion in model container [2024-11-08 18:49:39,449 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:49:39" (1/1) ... [2024-11-08 18:49:39,639 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:49:39,992 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_b1f339e0-e26a-45cf-81a8-e5d1e0db7d12/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.6.prop1-func-interl.c[1173,1186] [2024-11-08 18:49:41,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:49:41,550 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:49:41,563 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_b1f339e0-e26a-45cf-81a8-e5d1e0db7d12/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.6.prop1-func-interl.c[1173,1186] [2024-11-08 18:49:42,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:49:42,729 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:49:42,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:42 WrapperNode [2024-11-08 18:49:42,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:49:42,732 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:49:42,732 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:49:42,732 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:49:42,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:42" (1/1) ... [2024-11-08 18:49:43,002 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:42" (1/1) ... [2024-11-08 18:49:47,275 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35435 [2024-11-08 18:49:47,275 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:49:47,276 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:49:47,276 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:49:47,277 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:49:47,290 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:42" (1/1) ... [2024-11-08 18:49:47,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:42" (1/1) ... [2024-11-08 18:49:48,179 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:42" (1/1) ... [2024-11-08 18:49:48,576 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 18:49:48,576 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:42" (1/1) ... [2024-11-08 18:49:48,577 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:42" (1/1) ... [2024-11-08 18:49:49,994 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:42" (1/1) ... [2024-11-08 18:49:50,157 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:42" (1/1) ... [2024-11-08 18:49:50,322 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:42" (1/1) ... [2024-11-08 18:49:50,436 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:42" (1/1) ... [2024-11-08 18:49:50,883 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:49:50,884 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:49:50,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:49:50,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:49:50,886 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:42" (1/1) ... [2024-11-08 18:49:50,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:49:50,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f339e0-e26a-45cf-81a8-e5d1e0db7d12/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:49:50,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f339e0-e26a-45cf-81a8-e5d1e0db7d12/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:49:50,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f339e0-e26a-45cf-81a8-e5d1e0db7d12/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:49:50,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:49:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:49:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:49:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:49:52,771 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:49:52,773 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:53:23,172 INFO L? ?]: Removed 20037 outVars from TransFormulas that were not future-live. [2024-11-08 18:53:23,172 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:53:23,334 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:53:23,335 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:53:23,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:53:23 BoogieIcfgContainer [2024-11-08 18:53:23,336 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:53:23,340 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:53:23,340 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:53:23,344 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:53:23,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:49:39" (1/3) ... [2024-11-08 18:53:23,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228ee749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:53:23, skipping insertion in model container [2024-11-08 18:53:23,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:42" (2/3) ... [2024-11-08 18:53:23,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228ee749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:53:23, skipping insertion in model container [2024-11-08 18:53:23,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:53:23" (3/3) ... [2024-11-08 18:53:23,349 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.rether.6.prop1-func-interl.c [2024-11-08 18:53:23,368 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:53:23,369 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:53:23,627 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:53:23,634 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;@47a96b92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:53:23,634 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:53:23,674 INFO L276 IsEmpty]: Start isEmpty. Operand has 12563 states, 12561 states have (on average 1.5001194172438501) internal successors, (18843), 12562 states have internal predecessors, (18843), 0 states have call successors, (0), 0 states 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 18:53:23,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-11-08 18:53:23,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:23,723 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:53:23,724 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:53:23,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:23,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1977077798, now seen corresponding path program 1 times [2024-11-08 18:53:23,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:23,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626683187] [2024-11-08 18:53:23,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:23,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:27,067 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 18:53:27,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:27,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626683187] [2024-11-08 18:53:27,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626683187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:27,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:53:27,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:53:27,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760011667] [2024-11-08 18:53:27,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:27,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:53:27,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:27,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:53:27,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:53:27,140 INFO L87 Difference]: Start difference. First operand has 12563 states, 12561 states have (on average 1.5001194172438501) internal successors, (18843), 12562 states have internal predecessors, (18843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 0 states have call successors, (0), 0 states 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 18:53:42,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:42,426 INFO L93 Difference]: Finished difference Result 36569 states and 54857 transitions. [2024-11-08 18:53:42,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:53:42,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 0 states have call successors, (0), 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 469 [2024-11-08 18:53:42,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:42,536 INFO L225 Difference]: With dead ends: 36569 [2024-11-08 18:53:42,536 INFO L226 Difference]: Without dead ends: 24556 [2024-11-08 18:53:42,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:53:42,559 INFO L432 NwaCegarLoop]: 14431 mSDtfsCounter, 18358 mSDsluCounter, 42920 mSDsCounter, 0 mSdLazyCounter, 17174 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18358 SdHoareTripleChecker+Valid, 57351 SdHoareTripleChecker+Invalid, 17175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:42,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18358 Valid, 57351 Invalid, 17175 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 17174 Invalid, 0 Unknown, 0 Unchecked, 14.4s Time] [2024-11-08 18:53:42,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24556 states. [2024-11-08 18:53:42,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24556 to 12930. [2024-11-08 18:53:43,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12930 states, 12929 states have (on average 1.4998839817464615) internal successors, (19392), 12929 states have internal predecessors, (19392), 0 states have call successors, (0), 0 states 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 18:53:43,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12930 states to 12930 states and 19392 transitions. [2024-11-08 18:53:43,060 INFO L78 Accepts]: Start accepts. Automaton has 12930 states and 19392 transitions. Word has length 469 [2024-11-08 18:53:43,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:43,067 INFO L471 AbstractCegarLoop]: Abstraction has 12930 states and 19392 transitions. [2024-11-08 18:53:43,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 0 states have call successors, (0), 0 states 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 18:53:43,068 INFO L276 IsEmpty]: Start isEmpty. Operand 12930 states and 19392 transitions. [2024-11-08 18:53:43,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-08 18:53:43,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:43,084 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:53:43,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:53:43,085 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:53:43,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:43,088 INFO L85 PathProgramCache]: Analyzing trace with hash -23092905, now seen corresponding path program 1 times [2024-11-08 18:53:43,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:43,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213856592] [2024-11-08 18:53:43,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:43,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:44,816 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 18:53:44,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:44,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213856592] [2024-11-08 18:53:44,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213856592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:44,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:53:44,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:53:44,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44118801] [2024-11-08 18:53:44,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:44,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:53:44,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:44,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:53:44,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:53:44,826 INFO L87 Difference]: Start difference. First operand 12930 states and 19392 transitions. Second operand has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 0 states have call successors, (0), 0 states 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 18:53:45,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:45,157 INFO L93 Difference]: Finished difference Result 12934 states and 19396 transitions. [2024-11-08 18:53:45,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:53:45,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 0 states have call successors, (0), 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 471 [2024-11-08 18:53:45,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:45,193 INFO L225 Difference]: With dead ends: 12934 [2024-11-08 18:53:45,193 INFO L226 Difference]: Without dead ends: 12932 [2024-11-08 18:53:45,200 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 18:53:45,202 INFO L432 NwaCegarLoop]: 18835 mSDtfsCounter, 0 mSDsluCounter, 37664 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56499 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:45,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56499 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:53:45,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12932 states. [2024-11-08 18:53:45,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12932 to 12932. [2024-11-08 18:53:45,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12932 states, 12931 states have (on average 1.4998066661511098) internal successors, (19394), 12931 states have internal predecessors, (19394), 0 states have call successors, (0), 0 states 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 18:53:45,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12932 states to 12932 states and 19394 transitions. [2024-11-08 18:53:45,469 INFO L78 Accepts]: Start accepts. Automaton has 12932 states and 19394 transitions. Word has length 471 [2024-11-08 18:53:45,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:45,471 INFO L471 AbstractCegarLoop]: Abstraction has 12932 states and 19394 transitions. [2024-11-08 18:53:45,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 0 states have call successors, (0), 0 states 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 18:53:45,471 INFO L276 IsEmpty]: Start isEmpty. Operand 12932 states and 19394 transitions. [2024-11-08 18:53:45,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-11-08 18:53:45,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:45,482 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:53:45,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:53:45,483 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:53:45,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:45,487 INFO L85 PathProgramCache]: Analyzing trace with hash -714181882, now seen corresponding path program 1 times [2024-11-08 18:53:45,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:45,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506731756] [2024-11-08 18:53:45,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:45,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:46,542 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 18:53:46,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:46,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506731756] [2024-11-08 18:53:46,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506731756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:46,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:53:46,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:53:46,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25257204] [2024-11-08 18:53:46,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:46,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:53:46,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:46,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:53:46,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:53:46,551 INFO L87 Difference]: Start difference. First operand 12932 states and 19394 transitions. Second operand has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states 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 18:53:46,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:46,939 INFO L93 Difference]: Finished difference Result 24945 states and 37412 transitions. [2024-11-08 18:53:46,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:53:46,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 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 472 [2024-11-08 18:53:46,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:46,962 INFO L225 Difference]: With dead ends: 24945 [2024-11-08 18:53:46,962 INFO L226 Difference]: Without dead ends: 12934 [2024-11-08 18:53:46,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 18:53:46,978 INFO L432 NwaCegarLoop]: 18835 mSDtfsCounter, 0 mSDsluCounter, 37660 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56495 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:46,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56495 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:53:47,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12934 states. [2024-11-08 18:53:47,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12934 to 12934. [2024-11-08 18:53:47,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12934 states, 12933 states have (on average 1.4997293744684141) internal successors, (19396), 12933 states have internal predecessors, (19396), 0 states have call successors, (0), 0 states 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 18:53:47,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12934 states to 12934 states and 19396 transitions. [2024-11-08 18:53:47,221 INFO L78 Accepts]: Start accepts. Automaton has 12934 states and 19396 transitions. Word has length 472 [2024-11-08 18:53:47,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:47,222 INFO L471 AbstractCegarLoop]: Abstraction has 12934 states and 19396 transitions. [2024-11-08 18:53:47,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states 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 18:53:47,224 INFO L276 IsEmpty]: Start isEmpty. Operand 12934 states and 19396 transitions. [2024-11-08 18:53:47,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-08 18:53:47,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:47,239 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:53:47,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:53:47,240 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:53:47,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:47,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1762764784, now seen corresponding path program 1 times [2024-11-08 18:53:47,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:47,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931532998] [2024-11-08 18:53:47,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:47,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:48,447 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 18:53:48,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:48,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931532998] [2024-11-08 18:53:48,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931532998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:48,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:53:48,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:53:48,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998144642] [2024-11-08 18:53:48,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:48,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:53:48,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:48,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:53:48,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:53:48,451 INFO L87 Difference]: Start difference. First operand 12934 states and 19396 transitions. Second operand has 5 states, 5 states have (on average 94.6) internal successors, (473), 5 states have internal predecessors, (473), 0 states have call successors, (0), 0 states 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 18:53:48,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:48,994 INFO L93 Difference]: Finished difference Result 34355 states and 51524 transitions. [2024-11-08 18:53:48,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:53:48,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 94.6) internal successors, (473), 5 states have internal predecessors, (473), 0 states have call successors, (0), 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 473 [2024-11-08 18:53:48,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:49,031 INFO L225 Difference]: With dead ends: 34355 [2024-11-08 18:53:49,032 INFO L226 Difference]: Without dead ends: 22342 [2024-11-08 18:53:49,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:53:49,049 INFO L432 NwaCegarLoop]: 18831 mSDtfsCounter, 15028 mSDsluCounter, 55664 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15028 SdHoareTripleChecker+Valid, 74495 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:49,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15028 Valid, 74495 Invalid, 30 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:53:49,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22342 states. [2024-11-08 18:53:49,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22342 to 12937. [2024-11-08 18:53:49,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12937 states, 12936 states have (on average 1.499613481756339) internal successors, (19399), 12936 states have internal predecessors, (19399), 0 states have call successors, (0), 0 states 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 18:53:49,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12937 states to 12937 states and 19399 transitions. [2024-11-08 18:53:49,330 INFO L78 Accepts]: Start accepts. Automaton has 12937 states and 19399 transitions. Word has length 473 [2024-11-08 18:53:49,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:49,331 INFO L471 AbstractCegarLoop]: Abstraction has 12937 states and 19399 transitions. [2024-11-08 18:53:49,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.6) internal successors, (473), 5 states have internal predecessors, (473), 0 states have call successors, (0), 0 states 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 18:53:49,332 INFO L276 IsEmpty]: Start isEmpty. Operand 12937 states and 19399 transitions. [2024-11-08 18:53:49,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6475 [2024-11-08 18:53:49,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:49,883 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:49,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:53:49,884 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:53:49,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:49,888 INFO L85 PathProgramCache]: Analyzing trace with hash 671645540, now seen corresponding path program 1 times [2024-11-08 18:53:49,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:49,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456323428] [2024-11-08 18:53:49,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:49,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:30,042 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:54:30,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:30,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456323428] [2024-11-08 18:54:30,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456323428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:30,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:30,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:54:30,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586774098] [2024-11-08 18:54:30,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:30,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:54:30,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:30,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:54:30,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:54:30,068 INFO L87 Difference]: Start difference. First operand 12937 states and 19399 transitions. Second operand has 4 states, 4 states have (on average 1618.5) internal successors, (6474), 4 states have internal predecessors, (6474), 0 states have call successors, (0), 0 states 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 18:54:30,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:30,612 INFO L93 Difference]: Finished difference Result 24950 states and 37416 transitions. [2024-11-08 18:54:30,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:54:30,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1618.5) internal successors, (6474), 4 states have internal predecessors, (6474), 0 states have call successors, (0), 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 6474 [2024-11-08 18:54:30,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:30,643 INFO L225 Difference]: With dead ends: 24950 [2024-11-08 18:54:30,643 INFO L226 Difference]: Without dead ends: 12937 [2024-11-08 18:54:30,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:54:30,657 INFO L432 NwaCegarLoop]: 18825 mSDtfsCounter, 17783 mSDsluCounter, 18823 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17783 SdHoareTripleChecker+Valid, 37648 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:30,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17783 Valid, 37648 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:54:30,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12937 states. [2024-11-08 18:54:30,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12937 to 12937. [2024-11-08 18:54:30,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12937 states, 12936 states have (on average 1.4995361781076066) internal successors, (19398), 12936 states have internal predecessors, (19398), 0 states have call successors, (0), 0 states 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 18:54:30,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12937 states to 12937 states and 19398 transitions. [2024-11-08 18:54:30,923 INFO L78 Accepts]: Start accepts. Automaton has 12937 states and 19398 transitions. Word has length 6474 [2024-11-08 18:54:30,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:30,926 INFO L471 AbstractCegarLoop]: Abstraction has 12937 states and 19398 transitions. [2024-11-08 18:54:30,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1618.5) internal successors, (6474), 4 states have internal predecessors, (6474), 0 states have call successors, (0), 0 states 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 18:54:30,929 INFO L276 IsEmpty]: Start isEmpty. Operand 12937 states and 19398 transitions. [2024-11-08 18:54:31,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6476 [2024-11-08 18:54:31,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:31,558 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:31,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:54:31,558 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:31,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:31,562 INFO L85 PathProgramCache]: Analyzing trace with hash 2106017561, now seen corresponding path program 1 times [2024-11-08 18:54:31,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:31,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873753538] [2024-11-08 18:54:31,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:31,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms