./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI --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 aeaa951d8e8580b5c332234156773ae22fea12bbbe739a78054c027b3309c22c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:39:31,408 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:39:31,527 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-24 21:39:31,534 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:39:31,535 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:39:31,575 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:39:31,579 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:39:31,579 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:39:31,580 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:39:31,587 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:39:31,588 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:39:31,588 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:39:31,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:39:31,591 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:39:31,592 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:39:31,592 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:39:31,593 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:39:31,593 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:39:31,593 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:39:31,594 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:39:31,594 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:39:31,595 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:39:31,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:39:31,596 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:39:31,596 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:39:31,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:39:31,597 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:39:31,598 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:39:31,599 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:39:31,599 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:39:31,601 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:39:31,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:39:31,601 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:39:31,602 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:39:31,602 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 21:39:31,602 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:39:31,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:39:31,603 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:39:31,603 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:39:31,603 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 21:39:31,603 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:39:31,604 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:39:31,604 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_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aeaa951d8e8580b5c332234156773ae22fea12bbbe739a78054c027b3309c22c [2023-11-24 21:39:31,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:39:31,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:39:31,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:39:31,970 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:39:31,971 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:39:31,972 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/eca-rers2012/Problem10_label10.c [2023-11-24 21:39:35,186 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:39:35,471 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:39:35,472 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/sv-benchmarks/c/eca-rers2012/Problem10_label10.c [2023-11-24 21:39:35,487 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI/data/6ed6b6407/bde66a1d5c324d9e9b70560d2b259945/FLAG32aebf0e3 [2023-11-24 21:39:35,502 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI/data/6ed6b6407/bde66a1d5c324d9e9b70560d2b259945 [2023-11-24 21:39:35,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:39:35,507 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:39:35,508 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:39:35,509 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:39:35,514 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:39:35,515 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:39:35" (1/1) ... [2023-11-24 21:39:35,516 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@454be96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:35, skipping insertion in model container [2023-11-24 21:39:35,517 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:39:35" (1/1) ... [2023-11-24 21:39:35,574 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:39:35,814 WARN L240 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_728c6294-6ec7-45c2-90bc-242dde7e7699/sv-benchmarks/c/eca-rers2012/Problem10_label10.c[5544,5557] [2023-11-24 21:39:35,998 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:39:36,010 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:39:36,041 WARN L240 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_728c6294-6ec7-45c2-90bc-242dde7e7699/sv-benchmarks/c/eca-rers2012/Problem10_label10.c[5544,5557] [2023-11-24 21:39:36,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:39:36,165 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:39:36,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:36 WrapperNode [2023-11-24 21:39:36,166 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:39:36,167 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:39:36,167 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:39:36,168 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:39:36,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:36" (1/1) ... [2023-11-24 21:39:36,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:36" (1/1) ... [2023-11-24 21:39:36,310 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 598 [2023-11-24 21:39:36,311 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:39:36,312 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:39:36,312 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:39:36,312 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:39:36,339 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:36" (1/1) ... [2023-11-24 21:39:36,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:36" (1/1) ... [2023-11-24 21:39:36,345 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:36" (1/1) ... [2023-11-24 21:39:36,426 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-24 21:39:36,427 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:36" (1/1) ... [2023-11-24 21:39:36,428 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:36" (1/1) ... [2023-11-24 21:39:36,466 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:36" (1/1) ... [2023-11-24 21:39:36,491 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:36" (1/1) ... [2023-11-24 21:39:36,500 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:36" (1/1) ... [2023-11-24 21:39:36,513 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:36" (1/1) ... [2023-11-24 21:39:36,527 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:39:36,530 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:39:36,530 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:39:36,530 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:39:36,531 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:36" (1/1) ... [2023-11-24 21:39:36,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:39:36,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:39:36,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:39:36,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:39:36,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:39:36,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-24 21:39:36,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:39:36,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:39:36,708 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:39:36,713 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:39:38,248 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:39:38,316 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:39:38,317 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 21:39:38,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:39:38 BoogieIcfgContainer [2023-11-24 21:39:38,318 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:39:38,320 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:39:38,321 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:39:38,324 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:39:38,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:39:35" (1/3) ... [2023-11-24 21:39:38,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e095541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:39:38, skipping insertion in model container [2023-11-24 21:39:38,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:39:36" (2/3) ... [2023-11-24 21:39:38,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e095541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:39:38, skipping insertion in model container [2023-11-24 21:39:38,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:39:38" (3/3) ... [2023-11-24 21:39:38,327 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label10.c [2023-11-24 21:39:38,348 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:39:38,348 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 21:39:38,404 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:39:38,411 INFO L357 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, mHoare=true, 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;@37215fdc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:39:38,412 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 21:39:38,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 142 states have (on average 1.9859154929577465) internal successors, (282), 143 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:38,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-24 21:39:38,425 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:38,426 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:39:38,427 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:39:38,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:38,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1952605903, now seen corresponding path program 1 times [2023-11-24 21:39:38,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:39:38,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207968962] [2023-11-24 21:39:38,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:38,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:39:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:38,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:39:38,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:39:38,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207968962] [2023-11-24 21:39:38,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207968962] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:39:38,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:39:38,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:39:38,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739416050] [2023-11-24 21:39:38,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:39:38,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 21:39:38,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:39:38,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 21:39:38,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 21:39:38,657 INFO L87 Difference]: Start difference. First operand has 144 states, 142 states have (on average 1.9859154929577465) internal successors, (282), 143 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:38,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:38,696 INFO L93 Difference]: Finished difference Result 287 states and 563 transitions. [2023-11-24 21:39:38,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 21:39:38,699 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2023-11-24 21:39:38,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:38,710 INFO L225 Difference]: With dead ends: 287 [2023-11-24 21:39:38,710 INFO L226 Difference]: Without dead ends: 142 [2023-11-24 21:39:38,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 21:39:38,718 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:38,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 217 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 21:39:38,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-24 21:39:38,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2023-11-24 21:39:38,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.5390070921985815) internal successors, (217), 141 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:38,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 217 transitions. [2023-11-24 21:39:38,764 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 217 transitions. Word has length 47 [2023-11-24 21:39:38,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:38,764 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 217 transitions. [2023-11-24 21:39:38,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:38,765 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 217 transitions. [2023-11-24 21:39:38,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-24 21:39:38,767 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:38,767 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:39:38,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 21:39:38,768 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:39:38,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:38,769 INFO L85 PathProgramCache]: Analyzing trace with hash 769417373, now seen corresponding path program 1 times [2023-11-24 21:39:38,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:39:38,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121836867] [2023-11-24 21:39:38,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:38,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:39:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:39,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:39:39,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:39:39,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121836867] [2023-11-24 21:39:39,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121836867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:39:39,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:39:39,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:39:39,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306755774] [2023-11-24 21:39:39,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:39:39,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:39:39,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:39:39,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:39:39,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:39:39,059 INFO L87 Difference]: Start difference. First operand 142 states and 217 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:39,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:39,746 INFO L93 Difference]: Finished difference Result 422 states and 648 transitions. [2023-11-24 21:39:39,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:39:39,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2023-11-24 21:39:39,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:39,749 INFO L225 Difference]: With dead ends: 422 [2023-11-24 21:39:39,750 INFO L226 Difference]: Without dead ends: 281 [2023-11-24 21:39:39,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:39:39,752 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 99 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:39,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 65 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-24 21:39:39,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-11-24 21:39:39,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2023-11-24 21:39:39,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 280 states have (on average 1.3428571428571427) internal successors, (376), 280 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:39,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 376 transitions. [2023-11-24 21:39:39,775 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 376 transitions. Word has length 47 [2023-11-24 21:39:39,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:39,776 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 376 transitions. [2023-11-24 21:39:39,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:39,776 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 376 transitions. [2023-11-24 21:39:39,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-24 21:39:39,781 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:39,782 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:39:39,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 21:39:39,782 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:39:39,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:39,783 INFO L85 PathProgramCache]: Analyzing trace with hash 242075881, now seen corresponding path program 1 times [2023-11-24 21:39:39,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:39:39,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451689873] [2023-11-24 21:39:39,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:39,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:39:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:40,354 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 21:39:40,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:39:40,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451689873] [2023-11-24 21:39:40,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451689873] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 21:39:40,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335472692] [2023-11-24 21:39:40,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:40,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 21:39:40,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:39:40,363 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 21:39:40,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 21:39:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:40,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 21:39:40,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:39:40,737 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-24 21:39:40,737 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:39:40,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335472692] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:39:40,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 21:39:40,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2023-11-24 21:39:40,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099805131] [2023-11-24 21:39:40,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:39:40,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:39:40,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:39:40,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:39:40,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:39:40,748 INFO L87 Difference]: Start difference. First operand 281 states and 376 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:41,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:41,407 INFO L93 Difference]: Finished difference Result 561 states and 751 transitions. [2023-11-24 21:39:41,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:39:41,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2023-11-24 21:39:41,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:41,412 INFO L225 Difference]: With dead ends: 561 [2023-11-24 21:39:41,413 INFO L226 Difference]: Without dead ends: 559 [2023-11-24 21:39:41,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:39:41,414 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 114 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:41,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 9 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-24 21:39:41,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-11-24 21:39:41,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 420. [2023-11-24 21:39:41,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 419 states have (on average 1.4081145584725536) internal successors, (590), 419 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:41,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 590 transitions. [2023-11-24 21:39:41,456 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 590 transitions. Word has length 113 [2023-11-24 21:39:41,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:41,457 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 590 transitions. [2023-11-24 21:39:41,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:41,458 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 590 transitions. [2023-11-24 21:39:41,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-24 21:39:41,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:41,461 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:39:41,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-24 21:39:41,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-24 21:39:41,668 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:39:41,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:41,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1359686896, now seen corresponding path program 1 times [2023-11-24 21:39:41,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:39:41,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175708570] [2023-11-24 21:39:41,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:41,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:39:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:41,956 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:39:41,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:39:41,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175708570] [2023-11-24 21:39:41,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175708570] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:39:41,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:39:41,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:39:41,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429753968] [2023-11-24 21:39:41,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:39:41,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:39:41,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:39:41,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:39:41,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:39:41,959 INFO L87 Difference]: Start difference. First operand 420 states and 590 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:42,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:42,515 INFO L93 Difference]: Finished difference Result 978 states and 1338 transitions. [2023-11-24 21:39:42,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:39:42,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2023-11-24 21:39:42,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:42,520 INFO L225 Difference]: With dead ends: 978 [2023-11-24 21:39:42,520 INFO L226 Difference]: Without dead ends: 559 [2023-11-24 21:39:42,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:39:42,523 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 72 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:42,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 75 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-24 21:39:42,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-11-24 21:39:42,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2023-11-24 21:39:42,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 558 states have (on average 1.3243727598566308) internal successors, (739), 558 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:42,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 739 transitions. [2023-11-24 21:39:42,539 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 739 transitions. Word has length 116 [2023-11-24 21:39:42,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:42,540 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 739 transitions. [2023-11-24 21:39:42,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:42,540 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 739 transitions. [2023-11-24 21:39:42,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-24 21:39:42,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:42,544 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:39:42,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 21:39:42,544 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:39:42,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:42,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1398702273, now seen corresponding path program 1 times [2023-11-24 21:39:42,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:39:42,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806492043] [2023-11-24 21:39:42,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:42,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:39:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:42,712 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:39:42,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:39:42,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806492043] [2023-11-24 21:39:42,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806492043] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:39:42,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:39:42,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:39:42,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882836607] [2023-11-24 21:39:42,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:39:42,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:39:42,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:39:42,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:39:42,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:39:42,716 INFO L87 Difference]: Start difference. First operand 559 states and 739 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:43,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:43,342 INFO L93 Difference]: Finished difference Result 1256 states and 1757 transitions. [2023-11-24 21:39:43,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:39:43,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2023-11-24 21:39:43,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:43,350 INFO L225 Difference]: With dead ends: 1256 [2023-11-24 21:39:43,350 INFO L226 Difference]: Without dead ends: 837 [2023-11-24 21:39:43,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:39:43,352 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 94 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:43,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 223 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-24 21:39:43,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2023-11-24 21:39:43,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 698. [2023-11-24 21:39:43,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 697 states have (on average 1.309899569583931) internal successors, (913), 697 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:43,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 913 transitions. [2023-11-24 21:39:43,371 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 913 transitions. Word has length 122 [2023-11-24 21:39:43,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:43,371 INFO L495 AbstractCegarLoop]: Abstraction has 698 states and 913 transitions. [2023-11-24 21:39:43,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:43,372 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 913 transitions. [2023-11-24 21:39:43,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-11-24 21:39:43,374 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:43,375 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:39:43,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 21:39:43,375 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:39:43,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:43,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1830741436, now seen corresponding path program 1 times [2023-11-24 21:39:43,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:39:43,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315075288] [2023-11-24 21:39:43,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:43,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:39:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:43,593 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-24 21:39:43,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:39:43,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315075288] [2023-11-24 21:39:43,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315075288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:39:43,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:39:43,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:39:43,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945142451] [2023-11-24 21:39:43,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:39:43,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:39:43,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:39:43,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:39:43,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:39:43,596 INFO L87 Difference]: Start difference. First operand 698 states and 913 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:44,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:44,115 INFO L93 Difference]: Finished difference Result 1534 states and 2009 transitions. [2023-11-24 21:39:44,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:39:44,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2023-11-24 21:39:44,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:44,121 INFO L225 Difference]: With dead ends: 1534 [2023-11-24 21:39:44,122 INFO L226 Difference]: Without dead ends: 976 [2023-11-24 21:39:44,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:39:44,124 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 107 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:44,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 32 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-24 21:39:44,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2023-11-24 21:39:44,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 976. [2023-11-24 21:39:44,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 975 states have (on average 1.1907692307692308) internal successors, (1161), 975 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:44,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1161 transitions. [2023-11-24 21:39:44,147 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1161 transitions. Word has length 182 [2023-11-24 21:39:44,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:44,148 INFO L495 AbstractCegarLoop]: Abstraction has 976 states and 1161 transitions. [2023-11-24 21:39:44,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:44,148 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1161 transitions. [2023-11-24 21:39:44,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-11-24 21:39:44,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:44,152 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:39:44,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 21:39:44,152 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:39:44,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:44,153 INFO L85 PathProgramCache]: Analyzing trace with hash -2013810493, now seen corresponding path program 1 times [2023-11-24 21:39:44,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:39:44,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355285175] [2023-11-24 21:39:44,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:44,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:39:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:44,629 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:39:44,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:39:44,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355285175] [2023-11-24 21:39:44,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355285175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:39:44,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:39:44,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:39:44,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543610197] [2023-11-24 21:39:44,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:39:44,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:39:44,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:39:44,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:39:44,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:39:44,633 INFO L87 Difference]: Start difference. First operand 976 states and 1161 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:45,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:45,195 INFO L93 Difference]: Finished difference Result 2090 states and 2556 transitions. [2023-11-24 21:39:45,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:39:45,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 199 [2023-11-24 21:39:45,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:45,202 INFO L225 Difference]: With dead ends: 2090 [2023-11-24 21:39:45,202 INFO L226 Difference]: Without dead ends: 1254 [2023-11-24 21:39:45,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:39:45,205 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 78 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:45,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 17 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-24 21:39:45,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2023-11-24 21:39:45,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 1254. [2023-11-24 21:39:45,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 1253 states have (on average 1.2130885873902633) internal successors, (1520), 1253 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:45,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1520 transitions. [2023-11-24 21:39:45,235 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1520 transitions. Word has length 199 [2023-11-24 21:39:45,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:45,236 INFO L495 AbstractCegarLoop]: Abstraction has 1254 states and 1520 transitions. [2023-11-24 21:39:45,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:45,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1520 transitions. [2023-11-24 21:39:45,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-24 21:39:45,239 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:45,240 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:39:45,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-24 21:39:45,240 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:39:45,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:45,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1547036719, now seen corresponding path program 1 times [2023-11-24 21:39:45,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:39:45,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441572370] [2023-11-24 21:39:45,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:45,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:39:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:45,546 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:39:45,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:39:45,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441572370] [2023-11-24 21:39:45,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441572370] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:39:45,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:39:45,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:39:45,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470479454] [2023-11-24 21:39:45,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:39:45,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:39:45,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:39:45,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:39:45,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:39:45,550 INFO L87 Difference]: Start difference. First operand 1254 states and 1520 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:46,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:46,066 INFO L93 Difference]: Finished difference Result 2646 states and 3254 transitions. [2023-11-24 21:39:46,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:39:46,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 207 [2023-11-24 21:39:46,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:46,075 INFO L225 Difference]: With dead ends: 2646 [2023-11-24 21:39:46,075 INFO L226 Difference]: Without dead ends: 1532 [2023-11-24 21:39:46,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:39:46,079 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 52 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:46,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 210 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-24 21:39:46,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2023-11-24 21:39:46,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1532. [2023-11-24 21:39:46,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1531 states have (on average 1.1881123448726323) internal successors, (1819), 1531 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:46,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1819 transitions. [2023-11-24 21:39:46,122 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1819 transitions. Word has length 207 [2023-11-24 21:39:46,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:46,122 INFO L495 AbstractCegarLoop]: Abstraction has 1532 states and 1819 transitions. [2023-11-24 21:39:46,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:46,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1819 transitions. [2023-11-24 21:39:46,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-11-24 21:39:46,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:46,128 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:39:46,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-24 21:39:46,129 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:39:46,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:46,129 INFO L85 PathProgramCache]: Analyzing trace with hash 168827208, now seen corresponding path program 1 times [2023-11-24 21:39:46,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:39:46,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302203240] [2023-11-24 21:39:46,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:46,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:39:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:46,751 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:39:46,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:39:46,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302203240] [2023-11-24 21:39:46,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302203240] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:39:46,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:39:46,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 21:39:46,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321627639] [2023-11-24 21:39:46,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:39:46,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-24 21:39:46,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:39:46,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-24 21:39:46,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-24 21:39:46,759 INFO L87 Difference]: Start difference. First operand 1532 states and 1819 transitions. Second operand has 7 states, 7 states have (on average 36.285714285714285) internal successors, (254), 6 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:47,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:47,601 INFO L93 Difference]: Finished difference Result 2979 states and 3548 transitions. [2023-11-24 21:39:47,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 21:39:47,603 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 36.285714285714285) internal successors, (254), 6 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 254 [2023-11-24 21:39:47,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:47,611 INFO L225 Difference]: With dead ends: 2979 [2023-11-24 21:39:47,611 INFO L226 Difference]: Without dead ends: 1532 [2023-11-24 21:39:47,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-24 21:39:47,617 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 142 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:47,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 25 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-24 21:39:47,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2023-11-24 21:39:47,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1532. [2023-11-24 21:39:47,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1531 states have (on average 1.1835401698236447) internal successors, (1812), 1531 states have internal predecessors, (1812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:47,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1812 transitions. [2023-11-24 21:39:47,659 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1812 transitions. Word has length 254 [2023-11-24 21:39:47,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:47,660 INFO L495 AbstractCegarLoop]: Abstraction has 1532 states and 1812 transitions. [2023-11-24 21:39:47,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 36.285714285714285) internal successors, (254), 6 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:47,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1812 transitions. [2023-11-24 21:39:47,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-11-24 21:39:47,665 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:47,666 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:39:47,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-24 21:39:47,666 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:39:47,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:47,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1487606674, now seen corresponding path program 1 times [2023-11-24 21:39:47,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:39:47,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640130005] [2023-11-24 21:39:47,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:47,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:39:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:47,955 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-11-24 21:39:47,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:39:47,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640130005] [2023-11-24 21:39:47,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640130005] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:39:47,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:39:47,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:39:47,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160537281] [2023-11-24 21:39:47,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:39:47,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:39:47,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:39:47,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:39:47,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:39:47,958 INFO L87 Difference]: Start difference. First operand 1532 states and 1812 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:48,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:48,580 INFO L93 Difference]: Finished difference Result 2090 states and 2454 transitions. [2023-11-24 21:39:48,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:39:48,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 290 [2023-11-24 21:39:48,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:48,592 INFO L225 Difference]: With dead ends: 2090 [2023-11-24 21:39:48,592 INFO L226 Difference]: Without dead ends: 2088 [2023-11-24 21:39:48,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:39:48,594 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 135 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:48,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 9 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-24 21:39:48,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2023-11-24 21:39:48,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 1532. [2023-11-24 21:39:48,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1531 states have (on average 1.1835401698236447) internal successors, (1812), 1531 states have internal predecessors, (1812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:48,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1812 transitions. [2023-11-24 21:39:48,639 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1812 transitions. Word has length 290 [2023-11-24 21:39:48,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:48,640 INFO L495 AbstractCegarLoop]: Abstraction has 1532 states and 1812 transitions. [2023-11-24 21:39:48,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:48,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1812 transitions. [2023-11-24 21:39:48,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2023-11-24 21:39:48,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:48,647 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:39:48,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-24 21:39:48,647 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:39:48,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:48,648 INFO L85 PathProgramCache]: Analyzing trace with hash 2104536706, now seen corresponding path program 1 times [2023-11-24 21:39:48,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:39:48,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230978731] [2023-11-24 21:39:48,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:48,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:39:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:48,948 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2023-11-24 21:39:48,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:39:48,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230978731] [2023-11-24 21:39:48,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230978731] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:39:48,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:39:48,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:39:48,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693448942] [2023-11-24 21:39:48,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:39:48,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:39:48,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:39:48,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:39:48,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:39:48,951 INFO L87 Difference]: Start difference. First operand 1532 states and 1812 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:49,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:49,526 INFO L93 Difference]: Finished difference Result 1673 states and 1961 transitions. [2023-11-24 21:39:49,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:39:49,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 325 [2023-11-24 21:39:49,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:49,536 INFO L225 Difference]: With dead ends: 1673 [2023-11-24 21:39:49,536 INFO L226 Difference]: Without dead ends: 1671 [2023-11-24 21:39:49,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:39:49,538 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 135 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:49,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 9 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-24 21:39:49,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2023-11-24 21:39:49,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1393. [2023-11-24 21:39:49,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1392 states have (on average 1.1939655172413792) internal successors, (1662), 1392 states have internal predecessors, (1662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:49,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1662 transitions. [2023-11-24 21:39:49,595 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1662 transitions. Word has length 325 [2023-11-24 21:39:49,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:49,596 INFO L495 AbstractCegarLoop]: Abstraction has 1393 states and 1662 transitions. [2023-11-24 21:39:49,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:49,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1662 transitions. [2023-11-24 21:39:49,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2023-11-24 21:39:49,605 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:39:49,607 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:39:49,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-24 21:39:49,607 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:39:49,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:39:49,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1290547486, now seen corresponding path program 1 times [2023-11-24 21:39:49,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:39:49,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827702828] [2023-11-24 21:39:49,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:39:49,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:39:49,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:39:50,379 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2023-11-24 21:39:50,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:39:50,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827702828] [2023-11-24 21:39:50,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827702828] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:39:50,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:39:50,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:39:50,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261837047] [2023-11-24 21:39:50,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:39:50,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:39:50,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:39:50,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:39:50,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:39:50,383 INFO L87 Difference]: Start difference. First operand 1393 states and 1662 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:50,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:39:50,890 INFO L93 Difference]: Finished difference Result 2644 states and 3179 transitions. [2023-11-24 21:39:50,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:39:50,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 346 [2023-11-24 21:39:50,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:39:50,892 INFO L225 Difference]: With dead ends: 2644 [2023-11-24 21:39:50,892 INFO L226 Difference]: Without dead ends: 0 [2023-11-24 21:39:50,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:39:50,895 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 116 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-24 21:39:50,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 17 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-24 21:39:50,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-24 21:39:50,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-24 21:39:50,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:50,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-24 21:39:50,897 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 346 [2023-11-24 21:39:50,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:39:50,897 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-24 21:39:50,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:39:50,898 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-24 21:39:50,898 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 21:39:50,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 21:39:50,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-24 21:39:50,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-24 21:39:51,071 INFO L899 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2023-11-24 21:39:51,071 INFO L899 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2023-11-24 21:39:51,071 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2023-11-24 21:39:51,071 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2023-11-24 21:39:51,072 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2023-11-24 21:39:51,072 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2023-11-24 21:39:51,072 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,072 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,072 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,072 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,072 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,073 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,073 INFO L899 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2023-11-24 21:39:51,073 INFO L899 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2023-11-24 21:39:51,073 INFO L899 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2023-11-24 21:39:51,073 INFO L899 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2023-11-24 21:39:51,073 INFO L899 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2023-11-24 21:39:51,074 INFO L899 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2023-11-24 21:39:51,074 INFO L899 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2023-11-24 21:39:51,074 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,074 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,075 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,076 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,076 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,076 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,076 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2023-11-24 21:39:51,077 INFO L899 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2023-11-24 21:39:51,077 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2023-11-24 21:39:51,077 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2023-11-24 21:39:51,077 INFO L899 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2023-11-24 21:39:51,077 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2023-11-24 21:39:51,077 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,078 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,078 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,078 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,079 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,079 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,079 INFO L899 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2023-11-24 21:39:51,079 INFO L899 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2023-11-24 21:39:51,080 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2023-11-24 21:39:51,080 INFO L899 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2023-11-24 21:39:51,080 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2023-11-24 21:39:51,080 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2023-11-24 21:39:51,080 INFO L899 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2023-11-24 21:39:51,080 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,081 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,081 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,081 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,081 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,081 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,081 INFO L899 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2023-11-24 21:39:51,081 INFO L899 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2023-11-24 21:39:51,081 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2023-11-24 21:39:51,082 INFO L899 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2023-11-24 21:39:51,082 INFO L899 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2023-11-24 21:39:51,082 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,082 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,082 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,082 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,082 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,083 INFO L899 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2023-11-24 21:39:51,083 INFO L899 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2023-11-24 21:39:51,083 INFO L899 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2023-11-24 21:39:51,083 INFO L899 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2023-11-24 21:39:51,083 INFO L899 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2023-11-24 21:39:51,083 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2023-11-24 21:39:51,083 INFO L899 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2023-11-24 21:39:51,084 INFO L899 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2023-11-24 21:39:51,084 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2023-11-24 21:39:51,084 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,084 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,084 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,084 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,084 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,084 INFO L899 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2023-11-24 21:39:51,085 INFO L899 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2023-11-24 21:39:51,085 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2023-11-24 21:39:51,085 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2023-11-24 21:39:51,085 INFO L899 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2023-11-24 21:39:51,085 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,085 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,085 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,086 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,086 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,086 INFO L899 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2023-11-24 21:39:51,086 INFO L899 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2023-11-24 21:39:51,087 INFO L899 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2023-11-24 21:39:51,087 INFO L899 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2023-11-24 21:39:51,087 INFO L899 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2023-11-24 21:39:51,087 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 602) no Hoare annotation was computed. [2023-11-24 21:39:51,087 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2023-11-24 21:39:51,087 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2023-11-24 21:39:51,088 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2023-11-24 21:39:51,088 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-24 21:39:51,088 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,088 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,088 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,088 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,089 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,089 INFO L899 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2023-11-24 21:39:51,089 INFO L899 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2023-11-24 21:39:51,089 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2023-11-24 21:39:51,089 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2023-11-24 21:39:51,089 INFO L899 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2023-11-24 21:39:51,089 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,090 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,090 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,090 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,090 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,090 INFO L899 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2023-11-24 21:39:51,090 INFO L899 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2023-11-24 21:39:51,090 INFO L899 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2023-11-24 21:39:51,091 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2023-11-24 21:39:51,091 INFO L899 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2023-11-24 21:39:51,091 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-24 21:39:51,091 INFO L899 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2023-11-24 21:39:51,091 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2023-11-24 21:39:51,094 INFO L895 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 (not (= ~a10~0 2)) .cse1 .cse2) (and (= ~a10~0 0) .cse1 .cse2) (and .cse0 (<= 7 ~a19~0) .cse1 .cse2) (and (= ~a10~0 1) .cse1 .cse2))) [2023-11-24 21:39:51,094 INFO L899 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2023-11-24 21:39:51,094 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,095 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,095 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,095 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,095 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2023-11-24 21:39:51,095 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,095 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,095 INFO L899 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2023-11-24 21:39:51,096 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2023-11-24 21:39:51,096 INFO L899 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2023-11-24 21:39:51,096 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,096 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 158) no Hoare annotation was computed. [2023-11-24 21:39:51,096 INFO L899 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2023-11-24 21:39:51,096 INFO L899 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2023-11-24 21:39:51,097 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2023-11-24 21:39:51,097 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2023-11-24 21:39:51,097 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,097 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,099 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,099 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,100 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,100 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2023-11-24 21:39:51,100 INFO L899 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2023-11-24 21:39:51,100 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2023-11-24 21:39:51,100 INFO L899 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2023-11-24 21:39:51,105 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:39:51,107 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 21:39:51,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 09:39:51 BoogieIcfgContainer [2023-11-24 21:39:51,124 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 21:39:51,124 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 21:39:51,124 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 21:39:51,125 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 21:39:51,125 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:39:38" (3/4) ... [2023-11-24 21:39:51,127 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 21:39:51,157 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-24 21:39:51,158 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-24 21:39:51,160 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 21:39:51,161 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 21:39:51,354 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI/witness.graphml [2023-11-24 21:39:51,354 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI/witness.yml [2023-11-24 21:39:51,355 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 21:39:51,355 INFO L158 Benchmark]: Toolchain (without parser) took 15848.54ms. Allocated memory was 130.0MB in the beginning and 323.0MB in the end (delta: 192.9MB). Free memory was 83.5MB in the beginning and 139.3MB in the end (delta: -55.8MB). Peak memory consumption was 140.1MB. Max. memory is 16.1GB. [2023-11-24 21:39:51,356 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory is still 101.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:39:51,356 INFO L158 Benchmark]: CACSL2BoogieTranslator took 658.08ms. Allocated memory is still 130.0MB. Free memory was 83.5MB in the beginning and 55.1MB in the end (delta: 28.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-24 21:39:51,356 INFO L158 Benchmark]: Boogie Procedure Inliner took 143.80ms. Allocated memory is still 130.0MB. Free memory was 55.1MB in the beginning and 97.4MB in the end (delta: -42.2MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2023-11-24 21:39:51,357 INFO L158 Benchmark]: Boogie Preprocessor took 216.45ms. Allocated memory was 130.0MB in the beginning and 180.4MB in the end (delta: 50.3MB). Free memory was 97.4MB in the beginning and 138.9MB in the end (delta: -41.6MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2023-11-24 21:39:51,358 INFO L158 Benchmark]: RCFGBuilder took 1788.10ms. Allocated memory is still 180.4MB. Free memory was 138.9MB in the beginning and 114.3MB in the end (delta: 24.6MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-24 21:39:51,359 INFO L158 Benchmark]: TraceAbstraction took 12803.46ms. Allocated memory was 180.4MB in the beginning and 323.0MB in the end (delta: 142.6MB). Free memory was 113.3MB in the beginning and 151.9MB in the end (delta: -38.6MB). Peak memory consumption was 106.1MB. Max. memory is 16.1GB. [2023-11-24 21:39:51,359 INFO L158 Benchmark]: Witness Printer took 230.44ms. Allocated memory is still 323.0MB. Free memory was 151.9MB in the beginning and 139.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 21:39:51,366 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory is still 101.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 658.08ms. Allocated memory is still 130.0MB. Free memory was 83.5MB in the beginning and 55.1MB in the end (delta: 28.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 143.80ms. Allocated memory is still 130.0MB. Free memory was 55.1MB in the beginning and 97.4MB in the end (delta: -42.2MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 216.45ms. Allocated memory was 130.0MB in the beginning and 180.4MB in the end (delta: 50.3MB). Free memory was 97.4MB in the beginning and 138.9MB in the end (delta: -41.6MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1788.10ms. Allocated memory is still 180.4MB. Free memory was 138.9MB in the beginning and 114.3MB in the end (delta: 24.6MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * TraceAbstraction took 12803.46ms. Allocated memory was 180.4MB in the beginning and 323.0MB in the end (delta: 142.6MB). Free memory was 113.3MB in the beginning and 151.9MB in the end (delta: -38.6MB). Peak memory consumption was 106.1MB. Max. memory is 16.1GB. * Witness Printer took 230.44ms. Allocated memory is still 323.0MB. Free memory was 151.9MB in the beginning and 139.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 158]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 144 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.7s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1144 SdHoareTripleChecker+Valid, 6.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1144 mSDsluCounter, 908 SdHoareTripleChecker+Invalid, 5.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 605 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4512 IncrementalHoareTripleChecker+Invalid, 5117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 605 mSolverCounterUnsat, 854 mSDtfsCounter, 4512 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1532occurred in iteration=8, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 1112 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 12 NumberOfFragments, 48 HoareAnnotationTreeSize, 1 FomulaSimplifications, 180 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 1 FomulaSimplificationsInter, 250 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 2361 NumberOfCodeBlocks, 2361 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2348 ConstructedInterpolants, 0 QuantifiedInterpolants, 5975 SizeOfPredicates, 0 NumberOfNonLiveVariables, 192 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 1737/1781 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: (((((((a19 <= 9) && !((a10 == 2))) && (14 == a4)) && (a12 == 0)) || (((a10 == 0) && (14 == a4)) && (a12 == 0))) || ((((a19 <= 9) && (7 <= a19)) && (14 == a4)) && (a12 == 0))) || (((a10 == 1) && (14 == a4)) && (a12 == 0))) RESULT: Ultimate proved your program to be correct! [2023-11-24 21:39:51,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728c6294-6ec7-45c2-90bc-242dde7e7699/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE