./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-80.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8717104-7476-4b0a-90db-0059ef0ce980/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8717104-7476-4b0a-90db-0059ef0ce980/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_d8717104-7476-4b0a-90db-0059ef0ce980/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8717104-7476-4b0a-90db-0059ef0ce980/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-80.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8717104-7476-4b0a-90db-0059ef0ce980/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_d8717104-7476-4b0a-90db-0059ef0ce980/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 3d1966bb592506b79b27027d67cb6c0fd6d8e652b34595ef57f8584495d162fe --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 11:17:43,211 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 11:17:43,316 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8717104-7476-4b0a-90db-0059ef0ce980/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 11:17:43,324 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 11:17:43,325 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 11:17:43,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 11:17:43,374 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 11:17:43,375 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 11:17:43,377 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 11:17:43,378 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 11:17:43,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 11:17:43,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 11:17:43,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 11:17:43,380 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 11:17:43,381 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 11:17:43,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 11:17:43,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 11:17:43,382 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 11:17:43,382 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 11:17:43,387 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 11:17:43,387 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 11:17:43,388 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 11:17:43,392 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 11:17:43,393 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 11:17:43,393 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 11:17:43,394 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 11:17:43,394 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 11:17:43,394 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 11:17:43,395 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 11:17:43,396 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 11:17:43,396 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 11:17:43,397 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 11:17:43,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:17:43,398 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 11:17:43,399 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 11:17:43,399 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 11:17:43,400 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 11:17:43,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 11:17:43,400 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 11:17:43,401 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 11:17:43,401 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 11:17:43,401 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 11:17:43,402 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_d8717104-7476-4b0a-90db-0059ef0ce980/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8717104-7476-4b0a-90db-0059ef0ce980/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d1966bb592506b79b27027d67cb6c0fd6d8e652b34595ef57f8584495d162fe [2024-11-08 11:17:43,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 11:17:43,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 11:17:43,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 11:17:43,808 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 11:17:43,808 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 11:17:43,810 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8717104-7476-4b0a-90db-0059ef0ce980/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-80.i Unable to find full path for "g++" [2024-11-08 11:17:45,969 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 11:17:46,296 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 11:17:46,297 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8717104-7476-4b0a-90db-0059ef0ce980/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-80.i [2024-11-08 11:17:46,311 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8717104-7476-4b0a-90db-0059ef0ce980/bin/uautomizer-verify-jihMAELWvX/data/7d63f8fdd/41e8b8cd85544f7c8c9aa68694193ac6/FLAGc01acacb4 [2024-11-08 11:17:46,569 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8717104-7476-4b0a-90db-0059ef0ce980/bin/uautomizer-verify-jihMAELWvX/data/7d63f8fdd/41e8b8cd85544f7c8c9aa68694193ac6 [2024-11-08 11:17:46,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 11:17:46,574 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 11:17:46,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 11:17:46,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 11:17:46,590 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 11:17:46,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:17:46" (1/1) ... [2024-11-08 11:17:46,592 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a4a732d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:46, skipping insertion in model container [2024-11-08 11:17:46,593 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:17:46" (1/1) ... [2024-11-08 11:17:46,649 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 11:17:46,876 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_d8717104-7476-4b0a-90db-0059ef0ce980/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-80.i[917,930] [2024-11-08 11:17:47,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:17:47,079 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 11:17:47,091 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_d8717104-7476-4b0a-90db-0059ef0ce980/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-80.i[917,930] [2024-11-08 11:17:47,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:17:47,170 INFO L204 MainTranslator]: Completed translation [2024-11-08 11:17:47,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:47 WrapperNode [2024-11-08 11:17:47,171 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 11:17:47,172 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 11:17:47,173 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 11:17:47,173 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 11:17:47,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:47" (1/1) ... [2024-11-08 11:17:47,201 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:47" (1/1) ... [2024-11-08 11:17:47,293 INFO L138 Inliner]: procedures = 29, calls = 233, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 788 [2024-11-08 11:17:47,294 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 11:17:47,295 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 11:17:47,295 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 11:17:47,295 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 11:17:47,320 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:47" (1/1) ... [2024-11-08 11:17:47,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:47" (1/1) ... [2024-11-08 11:17:47,329 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:47" (1/1) ... [2024-11-08 11:17:47,365 INFO L175 MemorySlicer]: Split 199 memory accesses to 7 slices as follows [2, 6, 98, 36, 11, 23, 23]. 49 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 1, 8, 3, 1, 3, 1]. The 19 writes are split as follows [0, 1, 9, 4, 1, 3, 1]. [2024-11-08 11:17:47,365 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:47" (1/1) ... [2024-11-08 11:17:47,366 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:47" (1/1) ... [2024-11-08 11:17:47,408 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:47" (1/1) ... [2024-11-08 11:17:47,418 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:47" (1/1) ... [2024-11-08 11:17:47,426 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:47" (1/1) ... [2024-11-08 11:17:47,434 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:47" (1/1) ... [2024-11-08 11:17:47,452 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 11:17:47,453 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 11:17:47,453 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 11:17:47,453 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 11:17:47,458 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:47" (1/1) ... [2024-11-08 11:17:47,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:17:47,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8717104-7476-4b0a-90db-0059ef0ce980/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 11:17:47,503 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8717104-7476-4b0a-90db-0059ef0ce980/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 11:17:47,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8717104-7476-4b0a-90db-0059ef0ce980/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 11:17:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 11:17:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 11:17:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 11:17:47,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 11:17:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 11:17:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 11:17:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-08 11:17:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-08 11:17:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-08 11:17:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-08 11:17:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-08 11:17:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-08 11:17:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-08 11:17:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-08 11:17:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-08 11:17:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-08 11:17:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-08 11:17:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-08 11:17:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-08 11:17:47,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-08 11:17:47,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-08 11:17:47,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-08 11:17:47,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 11:17:47,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 11:17:47,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 11:17:47,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 11:17:47,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 11:17:47,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-08 11:17:47,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-08 11:17:47,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-08 11:17:47,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-08 11:17:47,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-08 11:17:47,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-08 11:17:47,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-08 11:17:47,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-08 11:17:47,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-08 11:17:47,573 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 11:17:47,574 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 11:17:47,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 11:17:47,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 11:17:47,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 11:17:47,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 11:17:47,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 11:17:47,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 11:17:47,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 11:17:47,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 11:17:47,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 11:17:47,857 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 11:17:47,860 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 11:17:49,040 INFO L? ?]: Removed 236 outVars from TransFormulas that were not future-live. [2024-11-08 11:17:49,040 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 11:17:49,068 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 11:17:49,070 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 11:17:49,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:17:49 BoogieIcfgContainer [2024-11-08 11:17:49,071 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 11:17:49,076 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 11:17:49,076 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 11:17:49,079 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 11:17:49,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:17:46" (1/3) ... [2024-11-08 11:17:49,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5026c425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:17:49, skipping insertion in model container [2024-11-08 11:17:49,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:47" (2/3) ... [2024-11-08 11:17:49,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5026c425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:17:49, skipping insertion in model container [2024-11-08 11:17:49,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:17:49" (3/3) ... [2024-11-08 11:17:49,083 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-80.i [2024-11-08 11:17:49,107 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 11:17:49,107 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 11:17:49,218 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 11:17:49,231 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;@6540ad9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 11:17:49,231 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 11:17:49,237 INFO L276 IsEmpty]: Start isEmpty. Operand has 154 states, 134 states have (on average 1.455223880597015) internal successors, (195), 135 states have internal predecessors, (195), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 11:17:49,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-08 11:17:49,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:17:49,257 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:49,257 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:17:49,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:17:49,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1285127872, now seen corresponding path program 1 times [2024-11-08 11:17:49,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:17:49,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841972986] [2024-11-08 11:17:49,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:17:49,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:17:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:49,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 11:17:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:49,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 11:17:49,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:49,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 11:17:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:49,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 11:17:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:49,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 11:17:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:49,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 11:17:49,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:49,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 11:17:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:49,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 11:17:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:49,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 11:17:49,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:49,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 11:17:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:49,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 11:17:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:49,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 11:17:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:49,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 11:17:49,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:49,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 11:17:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:49,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 11:17:49,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:49,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 11:17:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:49,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-08 11:17:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:49,895 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 11:17:49,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:17:49,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841972986] [2024-11-08 11:17:49,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841972986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:17:49,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:17:49,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:17:49,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201248688] [2024-11-08 11:17:49,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:17:49,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 11:17:49,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:17:49,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 11:17:49,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 11:17:49,947 INFO L87 Difference]: Start difference. First operand has 154 states, 134 states have (on average 1.455223880597015) internal successors, (195), 135 states have internal predecessors, (195), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 11:17:50,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:17:50,010 INFO L93 Difference]: Finished difference Result 301 states and 469 transitions. [2024-11-08 11:17:50,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 11:17:50,013 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2024-11-08 11:17:50,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:17:50,024 INFO L225 Difference]: With dead ends: 301 [2024-11-08 11:17:50,025 INFO L226 Difference]: Without dead ends: 150 [2024-11-08 11:17:50,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 11:17:50,038 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:17:50,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 11:17:50,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-08 11:17:50,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-08 11:17:50,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 131 states have (on average 1.4351145038167938) internal successors, (188), 131 states have internal predecessors, (188), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 11:17:50,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 222 transitions. [2024-11-08 11:17:50,117 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 222 transitions. Word has length 153 [2024-11-08 11:17:50,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:17:50,118 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 222 transitions. [2024-11-08 11:17:50,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 11:17:50,118 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 222 transitions. [2024-11-08 11:17:50,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-08 11:17:50,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:17:50,126 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:50,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 11:17:50,127 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:17:50,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:17:50,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1579933014, now seen corresponding path program 1 times [2024-11-08 11:17:50,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:17:50,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330441435] [2024-11-08 11:17:50,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:17:50,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:17:50,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:50,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 11:17:50,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:50,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 11:17:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:50,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 11:17:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:50,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 11:17:50,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:50,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 11:17:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:50,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 11:17:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:50,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 11:17:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:50,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 11:17:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:50,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 11:17:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:50,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 11:17:50,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:50,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 11:17:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:50,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 11:17:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:50,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 11:17:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:50,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 11:17:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:50,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 11:17:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:50,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 11:17:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:50,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-08 11:17:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:50,816 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 11:17:50,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:17:50,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330441435] [2024-11-08 11:17:50,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330441435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:17:50,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:17:50,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:17:50,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699829354] [2024-11-08 11:17:50,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:17:50,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:17:50,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:17:50,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:17:50,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:17:50,824 INFO L87 Difference]: Start difference. First operand 150 states and 222 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 11:17:50,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:17:50,898 INFO L93 Difference]: Finished difference Result 299 states and 444 transitions. [2024-11-08 11:17:50,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:17:50,900 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2024-11-08 11:17:50,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:17:50,902 INFO L225 Difference]: With dead ends: 299 [2024-11-08 11:17:50,902 INFO L226 Difference]: Without dead ends: 152 [2024-11-08 11:17:50,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 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 11:17:50,905 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:17:50,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 649 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 11:17:50,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-08 11:17:50,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-11-08 11:17:50,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 133 states have (on average 1.4285714285714286) internal successors, (190), 133 states have internal predecessors, (190), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 11:17:50,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 224 transitions. [2024-11-08 11:17:50,935 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 224 transitions. Word has length 153 [2024-11-08 11:17:50,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:17:50,937 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 224 transitions. [2024-11-08 11:17:50,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 11:17:50,937 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 224 transitions. [2024-11-08 11:17:50,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-08 11:17:50,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:17:50,946 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:50,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 11:17:50,948 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:17:50,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:17:50,949 INFO L85 PathProgramCache]: Analyzing trace with hash -541348440, now seen corresponding path program 1 times [2024-11-08 11:17:50,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:17:50,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601275120] [2024-11-08 11:17:50,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:17:50,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:17:51,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 11:17:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 11:17:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 11:17:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 11:17:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 11:17:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 11:17:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 11:17:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 11:17:51,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 11:17:51,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 11:17:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 11:17:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 11:17:51,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 11:17:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 11:17:51,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 11:17:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 11:17:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-08 11:17:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,607 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 11:17:51,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:17:51,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601275120] [2024-11-08 11:17:51,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601275120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:17:51,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:17:51,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:17:51,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640281524] [2024-11-08 11:17:51,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:17:51,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:17:51,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:17:51,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:17:51,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:17:51,616 INFO L87 Difference]: Start difference. First operand 152 states and 224 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 11:17:51,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:17:51,693 INFO L93 Difference]: Finished difference Result 303 states and 448 transitions. [2024-11-08 11:17:51,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:17:51,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 153 [2024-11-08 11:17:51,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:17:51,696 INFO L225 Difference]: With dead ends: 303 [2024-11-08 11:17:51,696 INFO L226 Difference]: Without dead ends: 154 [2024-11-08 11:17:51,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 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 11:17:51,699 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:17:51,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 649 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 11:17:51,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-08 11:17:51,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2024-11-08 11:17:51,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 135 states have (on average 1.4222222222222223) internal successors, (192), 135 states have internal predecessors, (192), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 11:17:51,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 226 transitions. [2024-11-08 11:17:51,710 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 226 transitions. Word has length 153 [2024-11-08 11:17:51,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:17:51,711 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 226 transitions. [2024-11-08 11:17:51,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 11:17:51,712 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 226 transitions. [2024-11-08 11:17:51,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-08 11:17:51,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:17:51,715 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:51,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 11:17:51,715 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:17:51,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:17:51,716 INFO L85 PathProgramCache]: Analyzing trace with hash -351813373, now seen corresponding path program 1 times [2024-11-08 11:17:51,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:17:51,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857119228] [2024-11-08 11:17:51,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:17:51,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:17:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 11:17:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 11:17:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 11:17:51,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 11:17:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 11:17:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 11:17:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 11:17:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:51,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 11:17:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 11:17:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 11:17:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 11:17:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 11:17:52,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 11:17:52,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 11:17:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 11:17:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 11:17:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-08 11:17:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,044 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 11:17:52,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:17:52,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857119228] [2024-11-08 11:17:52,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857119228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:17:52,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:17:52,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:17:52,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132963608] [2024-11-08 11:17:52,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:17:52,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:17:52,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:17:52,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:17:52,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:17:52,051 INFO L87 Difference]: Start difference. First operand 154 states and 226 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 11:17:52,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:17:52,101 INFO L93 Difference]: Finished difference Result 308 states and 453 transitions. [2024-11-08 11:17:52,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:17:52,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-08 11:17:52,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:17:52,106 INFO L225 Difference]: With dead ends: 308 [2024-11-08 11:17:52,108 INFO L226 Difference]: Without dead ends: 157 [2024-11-08 11:17:52,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 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 11:17:52,112 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:17:52,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 646 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 11:17:52,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-08 11:17:52,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 156. [2024-11-08 11:17:52,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 137 states have (on average 1.416058394160584) internal successors, (194), 137 states have internal predecessors, (194), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 11:17:52,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 228 transitions. [2024-11-08 11:17:52,138 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 228 transitions. Word has length 155 [2024-11-08 11:17:52,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:17:52,139 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 228 transitions. [2024-11-08 11:17:52,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 11:17:52,144 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 228 transitions. [2024-11-08 11:17:52,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-08 11:17:52,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:17:52,147 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:52,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 11:17:52,149 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:17:52,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:17:52,150 INFO L85 PathProgramCache]: Analyzing trace with hash 328244997, now seen corresponding path program 1 times [2024-11-08 11:17:52,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:17:52,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085854456] [2024-11-08 11:17:52,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:17:52,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:17:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 11:17:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 11:17:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 11:17:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 11:17:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 11:17:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 11:17:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 11:17:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 11:17:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 11:17:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 11:17:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 11:17:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 11:17:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 11:17:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 11:17:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 11:17:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 11:17:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-08 11:17:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,581 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 11:17:52,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:17:52,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085854456] [2024-11-08 11:17:52,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085854456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:17:52,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:17:52,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:17:52,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433812962] [2024-11-08 11:17:52,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:17:52,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:17:52,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:17:52,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:17:52,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:17:52,586 INFO L87 Difference]: Start difference. First operand 156 states and 228 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 11:17:52,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:17:52,628 INFO L93 Difference]: Finished difference Result 312 states and 457 transitions. [2024-11-08 11:17:52,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:17:52,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-08 11:17:52,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:17:52,632 INFO L225 Difference]: With dead ends: 312 [2024-11-08 11:17:52,633 INFO L226 Difference]: Without dead ends: 159 [2024-11-08 11:17:52,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 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 11:17:52,636 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:17:52,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 647 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 11:17:52,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-08 11:17:52,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 158. [2024-11-08 11:17:52,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 139 states have (on average 1.410071942446043) internal successors, (196), 139 states have internal predecessors, (196), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 11:17:52,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 230 transitions. [2024-11-08 11:17:52,658 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 230 transitions. Word has length 155 [2024-11-08 11:17:52,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:17:52,662 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 230 transitions. [2024-11-08 11:17:52,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 11:17:52,663 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 230 transitions. [2024-11-08 11:17:52,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-08 11:17:52,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:17:52,668 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:52,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 11:17:52,669 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:17:52,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:17:52,669 INFO L85 PathProgramCache]: Analyzing trace with hash 2103252359, now seen corresponding path program 1 times [2024-11-08 11:17:52,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:17:52,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671110570] [2024-11-08 11:17:52,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:17:52,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:17:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 11:17:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 11:17:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 11:17:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 11:17:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 11:17:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 11:17:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 11:17:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 11:17:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 11:17:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 11:17:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 11:17:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 11:17:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:52,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 11:17:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:53,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 11:17:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:53,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 11:17:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:53,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 11:17:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:53,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-08 11:17:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:53,025 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 11:17:53,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:17:53,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671110570] [2024-11-08 11:17:53,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671110570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:17:53,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:17:53,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:17:53,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460160902] [2024-11-08 11:17:53,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:17:53,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:17:53,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:17:53,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:17:53,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:17:53,031 INFO L87 Difference]: Start difference. First operand 158 states and 230 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 11:17:53,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:17:53,074 INFO L93 Difference]: Finished difference Result 316 states and 461 transitions. [2024-11-08 11:17:53,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:17:53,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-08 11:17:53,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:17:53,078 INFO L225 Difference]: With dead ends: 316 [2024-11-08 11:17:53,078 INFO L226 Difference]: Without dead ends: 161 [2024-11-08 11:17:53,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 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 11:17:53,081 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:17:53,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 649 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 11:17:53,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-08 11:17:53,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 160. [2024-11-08 11:17:53,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 141 states have (on average 1.4042553191489362) internal successors, (198), 141 states have internal predecessors, (198), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 11:17:53,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 232 transitions. [2024-11-08 11:17:53,106 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 232 transitions. Word has length 155 [2024-11-08 11:17:53,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:17:53,106 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 232 transitions. [2024-11-08 11:17:53,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 11:17:53,107 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 232 transitions. [2024-11-08 11:17:53,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-08 11:17:53,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:17:53,114 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:53,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 11:17:53,114 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:17:53,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:17:53,115 INFO L85 PathProgramCache]: Analyzing trace with hash 2105099401, now seen corresponding path program 1 times [2024-11-08 11:17:53,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:17:53,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606445372] [2024-11-08 11:17:53,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:17:53,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:17:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:58,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 11:17:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:58,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 11:17:58,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:58,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 11:17:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:58,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 11:17:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:58,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 11:17:58,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:58,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 11:17:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:58,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 11:17:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:58,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 11:17:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:58,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 11:17:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:58,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 11:17:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:58,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 11:17:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:58,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 11:17:58,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:58,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 11:17:58,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:58,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 11:17:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:58,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 11:17:58,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:58,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 11:17:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:58,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-08 11:17:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:17:58,388 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 11:17:58,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:17:58,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606445372] [2024-11-08 11:17:58,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606445372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:17:58,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:17:58,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 11:17:58,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394449430] [2024-11-08 11:17:58,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:17:58,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 11:17:58,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:17:58,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 11:17:58,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 11:17:58,396 INFO L87 Difference]: Start difference. First operand 160 states and 232 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 11:17:59,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:17:59,441 INFO L93 Difference]: Finished difference Result 480 states and 700 transitions. [2024-11-08 11:17:59,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 11:17:59,444 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-11-08 11:17:59,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:17:59,446 INFO L225 Difference]: With dead ends: 480 [2024-11-08 11:17:59,446 INFO L226 Difference]: Without dead ends: 323 [2024-11-08 11:17:59,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-08 11:17:59,449 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 271 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1272 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:17:59,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 1272 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 11:17:59,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-08 11:17:59,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 269. [2024-11-08 11:17:59,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 241 states have (on average 1.4107883817427387) internal successors, (340), 242 states have internal predecessors, (340), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-08 11:17:59,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 390 transitions. [2024-11-08 11:17:59,480 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 390 transitions. Word has length 155 [2024-11-08 11:17:59,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:17:59,480 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 390 transitions. [2024-11-08 11:17:59,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 11:17:59,481 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 390 transitions. [2024-11-08 11:17:59,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-08 11:17:59,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:17:59,484 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:59,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 11:17:59,485 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:17:59,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:17:59,485 INFO L85 PathProgramCache]: Analyzing trace with hash 110954695, now seen corresponding path program 1 times [2024-11-08 11:17:59,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:17:59,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008466731] [2024-11-08 11:17:59,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:17:59,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:17:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat