./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext/tree_parent_ptr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext/tree_parent_ptr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6e14aa3eeddc5d261248d26114db1375e0f229d6456e2c7754877a082dc10921 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:08:14,486 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:08:14,567 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-09 06:08:14,573 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:08:14,573 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:08:14,625 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:08:14,626 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:08:14,627 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:08:14,628 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:08:14,629 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:08:14,630 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:08:14,630 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:08:14,630 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:08:14,631 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:08:14,631 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:08:14,632 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:08:14,632 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:08:14,632 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:08:14,636 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:08:14,637 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:08:14,637 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:08:14,641 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:08:14,642 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:08:14,642 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:08:14,642 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:08:14,642 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:08:14,643 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:08:14,643 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:08:14,643 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:08:14,660 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 06:08:14,661 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 06:08:14,662 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 06:08:14,662 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:08:14,663 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:08:14,663 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:08:14,663 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:08:14,663 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:08:14,664 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:08:14,664 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:08:14,664 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:08:14,665 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:08:14,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:08:14,665 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:08:14,666 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:08:14,666 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:08:14,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:08:14,667 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:08:14,667 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:08:14,667 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:08:14,667 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e14aa3eeddc5d261248d26114db1375e0f229d6456e2c7754877a082dc10921 [2024-11-09 06:08:14,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:08:15,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:08:15,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:08:15,033 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:08:15,033 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:08:15,035 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/memsafety-ext/tree_parent_ptr.i Unable to find full path for "g++" [2024-11-09 06:08:17,294 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:08:17,567 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:08:17,567 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/sv-benchmarks/c/memsafety-ext/tree_parent_ptr.i [2024-11-09 06:08:17,585 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/data/772f71ffa/9a9e9e517aac4258b91f97a555e92f72/FLAG28eab78fb [2024-11-09 06:08:17,605 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/data/772f71ffa/9a9e9e517aac4258b91f97a555e92f72 [2024-11-09 06:08:17,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:08:17,611 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:08:17,634 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:08:17,634 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:08:17,649 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:08:17,651 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:08:17" (1/1) ... [2024-11-09 06:08:17,653 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a06a913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:17, skipping insertion in model container [2024-11-09 06:08:17,653 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:08:17" (1/1) ... [2024-11-09 06:08:17,710 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:08:18,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:08:18,154 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:08:18,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:08:18,314 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:08:18,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:18 WrapperNode [2024-11-09 06:08:18,316 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:08:18,317 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:08:18,317 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:08:18,318 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:08:18,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:18" (1/1) ... [2024-11-09 06:08:18,352 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:18" (1/1) ... [2024-11-09 06:08:18,393 INFO L138 Inliner]: procedures = 123, calls = 49, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 147 [2024-11-09 06:08:18,396 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:08:18,397 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:08:18,397 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:08:18,398 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:08:18,409 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:18" (1/1) ... [2024-11-09 06:08:18,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:18" (1/1) ... [2024-11-09 06:08:18,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:18" (1/1) ... [2024-11-09 06:08:18,415 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:18" (1/1) ... [2024-11-09 06:08:18,437 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:18" (1/1) ... [2024-11-09 06:08:18,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:18" (1/1) ... [2024-11-09 06:08:18,453 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:18" (1/1) ... [2024-11-09 06:08:18,455 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:18" (1/1) ... [2024-11-09 06:08:18,463 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:08:18,466 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:08:18,466 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:08:18,466 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:08:18,471 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:18" (1/1) ... [2024-11-09 06:08:18,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:08:18,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:08:18,523 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:08:18,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:08:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 06:08:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:08:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 06:08:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 06:08:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:08:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:08:18,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:08:18,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:08:18,785 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:08:18,788 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:08:19,444 INFO L? ?]: Removed 178 outVars from TransFormulas that were not future-live. [2024-11-09 06:08:19,444 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:08:19,562 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:08:19,565 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 06:08:19,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:08:19 BoogieIcfgContainer [2024-11-09 06:08:19,566 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:08:19,568 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:08:19,571 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:08:19,575 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:08:19,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:08:17" (1/3) ... [2024-11-09 06:08:19,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5872158a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:08:19, skipping insertion in model container [2024-11-09 06:08:19,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:08:18" (2/3) ... [2024-11-09 06:08:19,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5872158a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:08:19, skipping insertion in model container [2024-11-09 06:08:19,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:08:19" (3/3) ... [2024-11-09 06:08:19,578 INFO L112 eAbstractionObserver]: Analyzing ICFG tree_parent_ptr.i [2024-11-09 06:08:19,597 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:08:19,598 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 77 error locations. [2024-11-09 06:08:19,648 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:08:19,654 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@11a1395e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:08:19,654 INFO L334 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2024-11-09 06:08:19,657 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 56 states have (on average 2.5892857142857144) internal successors, (145), 133 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:19,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-09 06:08:19,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:19,662 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-11-09 06:08:19,663 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:19,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:19,669 INFO L85 PathProgramCache]: Analyzing trace with hash 8498, now seen corresponding path program 1 times [2024-11-09 06:08:19,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:19,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276596979] [2024-11-09 06:08:19,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:19,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:19,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:19,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:19,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276596979] [2024-11-09 06:08:19,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276596979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:19,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:19,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:08:19,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864700364] [2024-11-09 06:08:19,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:19,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:08:19,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:19,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:08:19,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:19,984 INFO L87 Difference]: Start difference. First operand has 134 states, 56 states have (on average 2.5892857142857144) internal successors, (145), 133 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:20,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:20,187 INFO L93 Difference]: Finished difference Result 131 states and 140 transitions. [2024-11-09 06:08:20,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:08:20,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2024-11-09 06:08:20,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:20,201 INFO L225 Difference]: With dead ends: 131 [2024-11-09 06:08:20,201 INFO L226 Difference]: Without dead ends: 130 [2024-11-09 06:08:20,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:20,210 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 79 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:20,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 105 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:08:20,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-09 06:08:20,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2024-11-09 06:08:20,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 56 states have (on average 2.482142857142857) internal successors, (139), 129 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:20,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 139 transitions. [2024-11-09 06:08:20,260 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 139 transitions. Word has length 2 [2024-11-09 06:08:20,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:20,260 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 139 transitions. [2024-11-09 06:08:20,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:20,263 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 139 transitions. [2024-11-09 06:08:20,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-09 06:08:20,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:20,264 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-11-09 06:08:20,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:08:20,264 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:20,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:20,265 INFO L85 PathProgramCache]: Analyzing trace with hash 8499, now seen corresponding path program 1 times [2024-11-09 06:08:20,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:20,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564388859] [2024-11-09 06:08:20,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:20,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:20,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:20,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:20,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564388859] [2024-11-09 06:08:20,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564388859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:20,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:20,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:08:20,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548578913] [2024-11-09 06:08:20,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:20,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:08:20,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:20,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:08:20,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:20,427 INFO L87 Difference]: Start difference. First operand 130 states and 139 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:20,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:20,608 INFO L93 Difference]: Finished difference Result 127 states and 136 transitions. [2024-11-09 06:08:20,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:08:20,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2024-11-09 06:08:20,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:20,613 INFO L225 Difference]: With dead ends: 127 [2024-11-09 06:08:20,613 INFO L226 Difference]: Without dead ends: 127 [2024-11-09 06:08:20,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:20,614 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 74 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:20,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 116 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:08:20,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-09 06:08:20,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-09 06:08:20,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 56 states have (on average 2.4285714285714284) internal successors, (136), 126 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:20,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 136 transitions. [2024-11-09 06:08:20,631 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 136 transitions. Word has length 2 [2024-11-09 06:08:20,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:20,631 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 136 transitions. [2024-11-09 06:08:20,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:20,632 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 136 transitions. [2024-11-09 06:08:20,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 06:08:20,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:20,632 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:20,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:08:20,635 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:20,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:20,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1545415520, now seen corresponding path program 1 times [2024-11-09 06:08:20,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:20,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123735816] [2024-11-09 06:08:20,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:20,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:20,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:20,783 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:20,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123735816] [2024-11-09 06:08:20,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123735816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:20,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:20,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:08:20,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795530061] [2024-11-09 06:08:20,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:20,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:08:20,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:20,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:08:20,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:08:20,786 INFO L87 Difference]: Start difference. First operand 127 states and 136 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:21,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:21,076 INFO L93 Difference]: Finished difference Result 131 states and 143 transitions. [2024-11-09 06:08:21,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:08:21,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2024-11-09 06:08:21,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:21,081 INFO L225 Difference]: With dead ends: 131 [2024-11-09 06:08:21,081 INFO L226 Difference]: Without dead ends: 131 [2024-11-09 06:08:21,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:08:21,082 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 140 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:21,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 98 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:08:21,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-09 06:08:21,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 111. [2024-11-09 06:08:21,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 57 states have (on average 2.1228070175438596) internal successors, (121), 110 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:21,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2024-11-09 06:08:21,100 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 121 transitions. Word has length 7 [2024-11-09 06:08:21,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:21,101 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 121 transitions. [2024-11-09 06:08:21,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:21,101 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 121 transitions. [2024-11-09 06:08:21,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 06:08:21,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:21,102 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:21,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:08:21,103 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:21,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:21,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1545415519, now seen corresponding path program 1 times [2024-11-09 06:08:21,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:21,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581998540] [2024-11-09 06:08:21,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:21,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:21,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:21,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:21,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:21,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581998540] [2024-11-09 06:08:21,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581998540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:21,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:21,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:08:21,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474829771] [2024-11-09 06:08:21,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:21,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:08:21,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:21,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:08:21,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:08:21,449 INFO L87 Difference]: Start difference. First operand 111 states and 121 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:21,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:21,854 INFO L93 Difference]: Finished difference Result 150 states and 165 transitions. [2024-11-09 06:08:21,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:08:21,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2024-11-09 06:08:21,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:21,858 INFO L225 Difference]: With dead ends: 150 [2024-11-09 06:08:21,858 INFO L226 Difference]: Without dead ends: 150 [2024-11-09 06:08:21,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:08:21,863 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 136 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:21,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 135 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:08:21,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-09 06:08:21,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 134. [2024-11-09 06:08:21,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 80 states have (on average 1.975) internal successors, (158), 133 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:21,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 158 transitions. [2024-11-09 06:08:21,881 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 158 transitions. Word has length 7 [2024-11-09 06:08:21,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:21,882 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 158 transitions. [2024-11-09 06:08:21,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:21,883 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 158 transitions. [2024-11-09 06:08:21,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 06:08:21,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:21,884 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:21,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:08:21,884 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:21,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:21,885 INFO L85 PathProgramCache]: Analyzing trace with hash -663238919, now seen corresponding path program 1 times [2024-11-09 06:08:21,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:21,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180251931] [2024-11-09 06:08:21,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:21,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:21,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:21,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:21,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180251931] [2024-11-09 06:08:21,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180251931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:21,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:21,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:08:21,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792856637] [2024-11-09 06:08:21,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:21,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:08:21,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:21,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:08:21,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:21,982 INFO L87 Difference]: Start difference. First operand 134 states and 158 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:22,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:22,145 INFO L93 Difference]: Finished difference Result 146 states and 174 transitions. [2024-11-09 06:08:22,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:08:22,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2024-11-09 06:08:22,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:22,146 INFO L225 Difference]: With dead ends: 146 [2024-11-09 06:08:22,146 INFO L226 Difference]: Without dead ends: 146 [2024-11-09 06:08:22,147 INFO L431 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 [2024-11-09 06:08:22,148 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 13 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:22,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 147 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:08:22,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-09 06:08:22,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 135. [2024-11-09 06:08:22,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 83 states have (on average 1.9518072289156627) internal successors, (162), 134 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:22,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 162 transitions. [2024-11-09 06:08:22,164 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 162 transitions. Word has length 8 [2024-11-09 06:08:22,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:22,165 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 162 transitions. [2024-11-09 06:08:22,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:22,165 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 162 transitions. [2024-11-09 06:08:22,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 06:08:22,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:22,166 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:22,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:08:22,166 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr47REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:22,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:22,170 INFO L85 PathProgramCache]: Analyzing trace with hash -663238918, now seen corresponding path program 1 times [2024-11-09 06:08:22,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:22,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769768700] [2024-11-09 06:08:22,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:22,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:22,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:22,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:22,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769768700] [2024-11-09 06:08:22,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769768700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:22,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:22,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:08:22,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628241418] [2024-11-09 06:08:22,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:22,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:08:22,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:22,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:08:22,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:22,324 INFO L87 Difference]: Start difference. First operand 135 states and 162 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:22,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:22,517 INFO L93 Difference]: Finished difference Result 133 states and 159 transitions. [2024-11-09 06:08:22,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:08:22,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2024-11-09 06:08:22,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:22,519 INFO L225 Difference]: With dead ends: 133 [2024-11-09 06:08:22,519 INFO L226 Difference]: Without dead ends: 133 [2024-11-09 06:08:22,520 INFO L431 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 [2024-11-09 06:08:22,521 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 4 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:22,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 129 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:08:22,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-09 06:08:22,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-11-09 06:08:22,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 83 states have (on average 1.9156626506024097) internal successors, (159), 132 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:22,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 159 transitions. [2024-11-09 06:08:22,538 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 159 transitions. Word has length 8 [2024-11-09 06:08:22,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:22,538 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 159 transitions. [2024-11-09 06:08:22,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:22,543 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 159 transitions. [2024-11-09 06:08:22,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 06:08:22,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:22,543 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:22,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:08:22,544 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:22,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:22,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1189962783, now seen corresponding path program 1 times [2024-11-09 06:08:22,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:22,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979719750] [2024-11-09 06:08:22,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:22,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:22,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:22,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979719750] [2024-11-09 06:08:22,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979719750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:22,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:22,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:08:22,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992396335] [2024-11-09 06:08:22,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:22,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:08:22,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:22,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:08:22,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:22,622 INFO L87 Difference]: Start difference. First operand 133 states and 159 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:22,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:22,706 INFO L93 Difference]: Finished difference Result 133 states and 157 transitions. [2024-11-09 06:08:22,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:08:22,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2024-11-09 06:08:22,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:22,708 INFO L225 Difference]: With dead ends: 133 [2024-11-09 06:08:22,708 INFO L226 Difference]: Without dead ends: 133 [2024-11-09 06:08:22,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:22,710 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 2 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:22,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 177 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:08:22,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-09 06:08:22,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-11-09 06:08:22,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 83 states have (on average 1.891566265060241) internal successors, (157), 132 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:22,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 157 transitions. [2024-11-09 06:08:22,717 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 157 transitions. Word has length 12 [2024-11-09 06:08:22,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:22,717 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 157 transitions. [2024-11-09 06:08:22,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:22,717 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 157 transitions. [2024-11-09 06:08:22,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 06:08:22,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:22,718 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:22,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:08:22,719 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:22,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:22,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1123719396, now seen corresponding path program 1 times [2024-11-09 06:08:22,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:22,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970089561] [2024-11-09 06:08:22,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:22,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:22,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:22,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:22,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970089561] [2024-11-09 06:08:22,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970089561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:22,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:22,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:08:22,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572127697] [2024-11-09 06:08:22,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:22,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:08:22,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:22,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:08:22,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:22,778 INFO L87 Difference]: Start difference. First operand 133 states and 157 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:22,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:22,845 INFO L93 Difference]: Finished difference Result 135 states and 159 transitions. [2024-11-09 06:08:22,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:08:22,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2024-11-09 06:08:22,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:22,847 INFO L225 Difference]: With dead ends: 135 [2024-11-09 06:08:22,847 INFO L226 Difference]: Without dead ends: 135 [2024-11-09 06:08:22,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:22,848 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:22,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 187 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:08:22,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-09 06:08:22,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2024-11-09 06:08:22,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 85 states have (on average 1.8705882352941177) internal successors, (159), 134 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:22,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 159 transitions. [2024-11-09 06:08:22,854 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 159 transitions. Word has length 12 [2024-11-09 06:08:22,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:22,854 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 159 transitions. [2024-11-09 06:08:22,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:22,855 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 159 transitions. [2024-11-09 06:08:22,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 06:08:22,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:22,855 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:22,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:08:22,856 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:22,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:22,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1763863684, now seen corresponding path program 1 times [2024-11-09 06:08:22,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:22,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332045464] [2024-11-09 06:08:22,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:22,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:22,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:22,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:22,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332045464] [2024-11-09 06:08:22,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332045464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:22,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:22,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:08:22,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836174765] [2024-11-09 06:08:22,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:22,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:08:22,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:22,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:08:22,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:08:22,971 INFO L87 Difference]: Start difference. First operand 135 states and 159 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:23,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:23,203 INFO L93 Difference]: Finished difference Result 141 states and 167 transitions. [2024-11-09 06:08:23,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:08:23,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2024-11-09 06:08:23,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:23,209 INFO L225 Difference]: With dead ends: 141 [2024-11-09 06:08:23,209 INFO L226 Difference]: Without dead ends: 141 [2024-11-09 06:08:23,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:08:23,210 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 18 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:23,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 180 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:08:23,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-09 06:08:23,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 131. [2024-11-09 06:08:23,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 86 states have (on average 1.813953488372093) internal successors, (156), 130 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:23,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 156 transitions. [2024-11-09 06:08:23,223 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 156 transitions. Word has length 13 [2024-11-09 06:08:23,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:23,224 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 156 transitions. [2024-11-09 06:08:23,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:23,224 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 156 transitions. [2024-11-09 06:08:23,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 06:08:23,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:23,225 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:23,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 06:08:23,225 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:23,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:23,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1763863685, now seen corresponding path program 1 times [2024-11-09 06:08:23,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:23,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189274179] [2024-11-09 06:08:23,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:23,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:23,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:23,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:23,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189274179] [2024-11-09 06:08:23,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189274179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:23,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:23,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:08:23,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387806427] [2024-11-09 06:08:23,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:23,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:08:23,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:23,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:08:23,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:08:23,398 INFO L87 Difference]: Start difference. First operand 131 states and 156 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:23,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:23,662 INFO L93 Difference]: Finished difference Result 142 states and 170 transitions. [2024-11-09 06:08:23,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:08:23,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2024-11-09 06:08:23,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:23,663 INFO L225 Difference]: With dead ends: 142 [2024-11-09 06:08:23,664 INFO L226 Difference]: Without dead ends: 142 [2024-11-09 06:08:23,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:08:23,665 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 17 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:23,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 152 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:08:23,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-09 06:08:23,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 137. [2024-11-09 06:08:23,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 96 states have (on average 1.7604166666666667) internal successors, (169), 136 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:23,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 169 transitions. [2024-11-09 06:08:23,674 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 169 transitions. Word has length 13 [2024-11-09 06:08:23,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:23,674 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 169 transitions. [2024-11-09 06:08:23,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:23,675 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 169 transitions. [2024-11-09 06:08:23,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 06:08:23,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:23,676 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:23,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:08:23,677 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:23,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:23,677 INFO L85 PathProgramCache]: Analyzing trace with hash -464927434, now seen corresponding path program 1 times [2024-11-09 06:08:23,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:23,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257534930] [2024-11-09 06:08:23,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:23,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:23,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:23,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:23,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257534930] [2024-11-09 06:08:23,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257534930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:23,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:23,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:08:23,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068846425] [2024-11-09 06:08:23,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:24,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:08:24,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:24,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:08:24,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:08:24,001 INFO L87 Difference]: Start difference. First operand 137 states and 169 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:24,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:24,288 INFO L93 Difference]: Finished difference Result 168 states and 204 transitions. [2024-11-09 06:08:24,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:08:24,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2024-11-09 06:08:24,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:24,290 INFO L225 Difference]: With dead ends: 168 [2024-11-09 06:08:24,291 INFO L226 Difference]: Without dead ends: 168 [2024-11-09 06:08:24,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:08:24,292 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 34 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:24,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 269 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:08:24,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-09 06:08:24,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 146. [2024-11-09 06:08:24,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 105 states have (on average 1.723809523809524) internal successors, (181), 145 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) [2024-11-09 06:08:24,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 181 transitions. [2024-11-09 06:08:24,301 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 181 transitions. Word has length 13 [2024-11-09 06:08:24,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:24,301 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 181 transitions. [2024-11-09 06:08:24,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:24,302 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 181 transitions. [2024-11-09 06:08:24,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 06:08:24,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:24,305 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:24,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:08:24,305 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:24,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:24,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1735935086, now seen corresponding path program 1 times [2024-11-09 06:08:24,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:24,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567344429] [2024-11-09 06:08:24,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:24,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:24,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:24,425 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:24,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567344429] [2024-11-09 06:08:24,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567344429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:24,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:24,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:08:24,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049749125] [2024-11-09 06:08:24,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:24,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:08:24,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:24,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:08:24,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:08:24,428 INFO L87 Difference]: Start difference. First operand 146 states and 181 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:24,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:24,702 INFO L93 Difference]: Finished difference Result 145 states and 179 transitions. [2024-11-09 06:08:24,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:08:24,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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 14 [2024-11-09 06:08:24,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:24,704 INFO L225 Difference]: With dead ends: 145 [2024-11-09 06:08:24,704 INFO L226 Difference]: Without dead ends: 145 [2024-11-09 06:08:24,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:08:24,705 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 3 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:24,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 210 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:08:24,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-09 06:08:24,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-11-09 06:08:24,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 105 states have (on average 1.7047619047619047) internal successors, (179), 144 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:24,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 179 transitions. [2024-11-09 06:08:24,712 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 179 transitions. Word has length 14 [2024-11-09 06:08:24,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:24,713 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 179 transitions. [2024-11-09 06:08:24,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:24,713 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 179 transitions. [2024-11-09 06:08:24,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 06:08:24,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:24,714 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:24,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 06:08:24,715 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:24,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:24,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1735935085, now seen corresponding path program 1 times [2024-11-09 06:08:24,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:24,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131267656] [2024-11-09 06:08:24,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:24,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:24,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:24,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:24,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131267656] [2024-11-09 06:08:24,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131267656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:24,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:24,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:08:24,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083346491] [2024-11-09 06:08:24,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:24,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:08:24,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:24,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:08:24,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:08:24,976 INFO L87 Difference]: Start difference. First operand 145 states and 179 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:25,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:25,263 INFO L93 Difference]: Finished difference Result 144 states and 177 transitions. [2024-11-09 06:08:25,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:08:25,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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 14 [2024-11-09 06:08:25,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:25,264 INFO L225 Difference]: With dead ends: 144 [2024-11-09 06:08:25,264 INFO L226 Difference]: Without dead ends: 144 [2024-11-09 06:08:25,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:08:25,265 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 2 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:25,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 188 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:08:25,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-09 06:08:25,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-09 06:08:25,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 105 states have (on average 1.6857142857142857) internal successors, (177), 143 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:25,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 177 transitions. [2024-11-09 06:08:25,270 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 177 transitions. Word has length 14 [2024-11-09 06:08:25,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:25,270 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 177 transitions. [2024-11-09 06:08:25,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:25,271 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 177 transitions. [2024-11-09 06:08:25,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 06:08:25,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:25,271 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:25,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 06:08:25,272 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:25,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:25,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1439014651, now seen corresponding path program 1 times [2024-11-09 06:08:25,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:25,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73116455] [2024-11-09 06:08:25,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:25,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:25,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:25,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:25,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73116455] [2024-11-09 06:08:25,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73116455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:25,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:25,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:08:25,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636498670] [2024-11-09 06:08:25,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:25,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:08:25,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:25,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:08:25,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:08:25,361 INFO L87 Difference]: Start difference. First operand 144 states and 177 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:25,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:25,519 INFO L93 Difference]: Finished difference Result 150 states and 179 transitions. [2024-11-09 06:08:25,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:08:25,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2024-11-09 06:08:25,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:25,520 INFO L225 Difference]: With dead ends: 150 [2024-11-09 06:08:25,520 INFO L226 Difference]: Without dead ends: 150 [2024-11-09 06:08:25,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:08:25,521 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 17 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:25,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 217 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:08:25,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-09 06:08:25,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 145. [2024-11-09 06:08:25,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 106 states have (on average 1.679245283018868) internal successors, (178), 144 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:25,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 178 transitions. [2024-11-09 06:08:25,527 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 178 transitions. Word has length 15 [2024-11-09 06:08:25,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:25,527 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 178 transitions. [2024-11-09 06:08:25,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:25,527 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 178 transitions. [2024-11-09 06:08:25,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 06:08:25,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:25,528 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:25,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 06:08:25,529 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:25,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:25,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1010250351, now seen corresponding path program 1 times [2024-11-09 06:08:25,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:25,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089653743] [2024-11-09 06:08:25,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:25,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:25,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:25,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:25,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089653743] [2024-11-09 06:08:25,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089653743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:25,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:25,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:08:25,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104242586] [2024-11-09 06:08:25,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:25,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:08:25,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:25,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:08:25,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:08:25,698 INFO L87 Difference]: Start difference. First operand 145 states and 178 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:25,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:25,935 INFO L93 Difference]: Finished difference Result 144 states and 176 transitions. [2024-11-09 06:08:25,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:08:25,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2024-11-09 06:08:25,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:25,936 INFO L225 Difference]: With dead ends: 144 [2024-11-09 06:08:25,937 INFO L226 Difference]: Without dead ends: 144 [2024-11-09 06:08:25,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:08:25,938 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 3 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:25,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 205 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:08:25,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-09 06:08:25,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-09 06:08:25,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 106 states have (on average 1.6603773584905661) internal successors, (176), 143 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:25,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 176 transitions. [2024-11-09 06:08:25,944 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 176 transitions. Word has length 16 [2024-11-09 06:08:25,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:25,945 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 176 transitions. [2024-11-09 06:08:25,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:25,945 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 176 transitions. [2024-11-09 06:08:25,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 06:08:25,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:25,946 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:25,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 06:08:25,946 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:25,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:25,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1010250350, now seen corresponding path program 1 times [2024-11-09 06:08:25,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:25,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494836792] [2024-11-09 06:08:25,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:25,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:26,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:26,184 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:26,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494836792] [2024-11-09 06:08:26,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494836792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:26,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:26,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:08:26,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285991690] [2024-11-09 06:08:26,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:26,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:08:26,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:26,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:08:26,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:08:26,186 INFO L87 Difference]: Start difference. First operand 144 states and 176 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:26,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:26,466 INFO L93 Difference]: Finished difference Result 143 states and 174 transitions. [2024-11-09 06:08:26,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:08:26,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2024-11-09 06:08:26,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:26,468 INFO L225 Difference]: With dead ends: 143 [2024-11-09 06:08:26,468 INFO L226 Difference]: Without dead ends: 143 [2024-11-09 06:08:26,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:08:26,469 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 2 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:26,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 183 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:08:26,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-09 06:08:26,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-11-09 06:08:26,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 106 states have (on average 1.6415094339622642) internal successors, (174), 142 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:26,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 174 transitions. [2024-11-09 06:08:26,474 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 174 transitions. Word has length 16 [2024-11-09 06:08:26,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:26,474 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 174 transitions. [2024-11-09 06:08:26,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:26,475 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 174 transitions. [2024-11-09 06:08:26,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 06:08:26,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:26,476 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:26,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 06:08:26,476 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:26,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:26,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1786163800, now seen corresponding path program 1 times [2024-11-09 06:08:26,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:26,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518342907] [2024-11-09 06:08:26,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:26,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:26,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:26,726 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:26,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518342907] [2024-11-09 06:08:26,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518342907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:26,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:26,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:08:26,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600729542] [2024-11-09 06:08:26,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:26,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:08:26,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:26,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:08:26,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:08:26,728 INFO L87 Difference]: Start difference. First operand 143 states and 174 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:27,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:27,191 INFO L93 Difference]: Finished difference Result 153 states and 185 transitions. [2024-11-09 06:08:27,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:08:27,191 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 8 states have internal predecessors, (16), 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 16 [2024-11-09 06:08:27,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:27,192 INFO L225 Difference]: With dead ends: 153 [2024-11-09 06:08:27,192 INFO L226 Difference]: Without dead ends: 153 [2024-11-09 06:08:27,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:08:27,194 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 52 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:27,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 190 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:08:27,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-09 06:08:27,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 142. [2024-11-09 06:08:27,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 106 states have (on average 1.6226415094339623) internal successors, (172), 141 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:27,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 172 transitions. [2024-11-09 06:08:27,199 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 172 transitions. Word has length 16 [2024-11-09 06:08:27,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:27,199 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 172 transitions. [2024-11-09 06:08:27,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:27,201 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 172 transitions. [2024-11-09 06:08:27,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 06:08:27,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:27,202 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:27,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 06:08:27,205 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:27,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:27,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1786163799, now seen corresponding path program 1 times [2024-11-09 06:08:27,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:27,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994825526] [2024-11-09 06:08:27,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:27,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:27,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:27,575 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:27,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994825526] [2024-11-09 06:08:27,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994825526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:27,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:27,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:08:27,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505945452] [2024-11-09 06:08:27,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:27,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:08:27,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:27,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:08:27,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:08:27,577 INFO L87 Difference]: Start difference. First operand 142 states and 172 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:28,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:28,106 INFO L93 Difference]: Finished difference Result 152 states and 183 transitions. [2024-11-09 06:08:28,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:08:28,107 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 8 states have internal predecessors, (16), 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 16 [2024-11-09 06:08:28,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:28,108 INFO L225 Difference]: With dead ends: 152 [2024-11-09 06:08:28,108 INFO L226 Difference]: Without dead ends: 152 [2024-11-09 06:08:28,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:08:28,109 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 48 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:28,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 215 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:08:28,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-09 06:08:28,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 141. [2024-11-09 06:08:28,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 106 states have (on average 1.6037735849056605) internal successors, (170), 140 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:28,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 170 transitions. [2024-11-09 06:08:28,113 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 170 transitions. Word has length 16 [2024-11-09 06:08:28,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:28,114 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 170 transitions. [2024-11-09 06:08:28,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:28,114 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 170 transitions. [2024-11-09 06:08:28,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 06:08:28,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:28,115 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:28,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 06:08:28,115 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr57REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:28,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:28,116 INFO L85 PathProgramCache]: Analyzing trace with hash 86396232, now seen corresponding path program 1 times [2024-11-09 06:08:28,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:28,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494942664] [2024-11-09 06:08:28,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:28,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:28,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:28,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:28,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494942664] [2024-11-09 06:08:28,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494942664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:28,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:28,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:08:28,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298987380] [2024-11-09 06:08:28,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:28,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:08:28,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:28,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:08:28,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:08:28,689 INFO L87 Difference]: Start difference. First operand 141 states and 170 transitions. Second operand has 11 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:29,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:29,308 INFO L93 Difference]: Finished difference Result 156 states and 188 transitions. [2024-11-09 06:08:29,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 06:08:29,308 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 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 17 [2024-11-09 06:08:29,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:29,309 INFO L225 Difference]: With dead ends: 156 [2024-11-09 06:08:29,309 INFO L226 Difference]: Without dead ends: 156 [2024-11-09 06:08:29,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-11-09 06:08:29,313 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 108 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:29,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 157 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:08:29,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-09 06:08:29,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 145. [2024-11-09 06:08:29,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 110 states have (on average 1.5909090909090908) internal successors, (175), 144 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:29,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 175 transitions. [2024-11-09 06:08:29,318 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 175 transitions. Word has length 17 [2024-11-09 06:08:29,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:29,319 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 175 transitions. [2024-11-09 06:08:29,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:29,320 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 175 transitions. [2024-11-09 06:08:29,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 06:08:29,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:29,321 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:29,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 06:08:29,321 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr58REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:29,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:29,322 INFO L85 PathProgramCache]: Analyzing trace with hash 86396233, now seen corresponding path program 1 times [2024-11-09 06:08:29,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:29,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371774727] [2024-11-09 06:08:29,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:29,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:29,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:29,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:29,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:29,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371774727] [2024-11-09 06:08:29,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371774727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:29,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:29,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 06:08:29,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345028266] [2024-11-09 06:08:29,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:29,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:08:29,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:29,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:08:29,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:08:29,853 INFO L87 Difference]: Start difference. First operand 145 states and 175 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:30,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:30,444 INFO L93 Difference]: Finished difference Result 161 states and 190 transitions. [2024-11-09 06:08:30,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:08:30,445 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 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 17 [2024-11-09 06:08:30,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:30,446 INFO L225 Difference]: With dead ends: 161 [2024-11-09 06:08:30,446 INFO L226 Difference]: Without dead ends: 161 [2024-11-09 06:08:30,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-09 06:08:30,448 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 124 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:30,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 180 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:08:30,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-09 06:08:30,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 149. [2024-11-09 06:08:30,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 114 states have (on average 1.5789473684210527) internal successors, (180), 148 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:30,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 180 transitions. [2024-11-09 06:08:30,455 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 180 transitions. Word has length 17 [2024-11-09 06:08:30,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:30,455 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 180 transitions. [2024-11-09 06:08:30,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:30,466 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 180 transitions. [2024-11-09 06:08:30,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 06:08:30,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:30,469 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:30,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 06:08:30,470 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:30,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:30,470 INFO L85 PathProgramCache]: Analyzing trace with hash -187866779, now seen corresponding path program 1 times [2024-11-09 06:08:30,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:30,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594772538] [2024-11-09 06:08:30,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:30,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:30,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:30,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:30,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594772538] [2024-11-09 06:08:30,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594772538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:30,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:30,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:08:30,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111728689] [2024-11-09 06:08:30,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:30,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:08:30,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:30,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:08:30,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:08:30,715 INFO L87 Difference]: Start difference. First operand 149 states and 180 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:31,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:31,247 INFO L93 Difference]: Finished difference Result 159 states and 191 transitions. [2024-11-09 06:08:31,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:08:31,247 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 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 18 [2024-11-09 06:08:31,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:31,249 INFO L225 Difference]: With dead ends: 159 [2024-11-09 06:08:31,250 INFO L226 Difference]: Without dead ends: 159 [2024-11-09 06:08:31,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:08:31,251 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 46 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:31,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 214 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:08:31,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-09 06:08:31,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 148. [2024-11-09 06:08:31,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 114 states have (on average 1.5614035087719298) internal successors, (178), 147 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:31,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 178 transitions. [2024-11-09 06:08:31,260 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 178 transitions. Word has length 18 [2024-11-09 06:08:31,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:31,260 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 178 transitions. [2024-11-09 06:08:31,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:31,260 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 178 transitions. [2024-11-09 06:08:31,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 06:08:31,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:31,261 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:31,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 06:08:31,261 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:31,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:31,262 INFO L85 PathProgramCache]: Analyzing trace with hash -187866778, now seen corresponding path program 1 times [2024-11-09 06:08:31,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:31,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919398606] [2024-11-09 06:08:31,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:31,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:31,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:31,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:31,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919398606] [2024-11-09 06:08:31,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919398606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:31,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:31,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:08:31,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252411006] [2024-11-09 06:08:31,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:31,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:08:31,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:31,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:08:31,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:08:31,672 INFO L87 Difference]: Start difference. First operand 148 states and 178 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:32,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:32,104 INFO L93 Difference]: Finished difference Result 158 states and 189 transitions. [2024-11-09 06:08:32,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:08:32,107 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 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 18 [2024-11-09 06:08:32,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:32,108 INFO L225 Difference]: With dead ends: 158 [2024-11-09 06:08:32,109 INFO L226 Difference]: Without dead ends: 158 [2024-11-09 06:08:32,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:08:32,109 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 45 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:32,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 156 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:08:32,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-09 06:08:32,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 147. [2024-11-09 06:08:32,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 114 states have (on average 1.543859649122807) internal successors, (176), 146 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:32,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 176 transitions. [2024-11-09 06:08:32,115 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 176 transitions. Word has length 18 [2024-11-09 06:08:32,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:32,116 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 176 transitions. [2024-11-09 06:08:32,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:32,117 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 176 transitions. [2024-11-09 06:08:32,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 06:08:32,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:32,118 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:32,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 06:08:32,118 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:32,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:32,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1483645018, now seen corresponding path program 1 times [2024-11-09 06:08:32,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:32,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449859015] [2024-11-09 06:08:32,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:32,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:32,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:32,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:32,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449859015] [2024-11-09 06:08:32,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449859015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:32,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:32,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 06:08:32,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743344557] [2024-11-09 06:08:32,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:32,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:08:32,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:32,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:08:32,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:08:32,661 INFO L87 Difference]: Start difference. First operand 147 states and 176 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:33,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:33,258 INFO L93 Difference]: Finished difference Result 157 states and 187 transitions. [2024-11-09 06:08:33,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:08:33,259 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 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 18 [2024-11-09 06:08:33,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:33,260 INFO L225 Difference]: With dead ends: 157 [2024-11-09 06:08:33,260 INFO L226 Difference]: Without dead ends: 157 [2024-11-09 06:08:33,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-09 06:08:33,261 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 46 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:33,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 242 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:08:33,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-09 06:08:33,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 146. [2024-11-09 06:08:33,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 114 states have (on average 1.5263157894736843) internal successors, (174), 145 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:33,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 174 transitions. [2024-11-09 06:08:33,265 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 174 transitions. Word has length 18 [2024-11-09 06:08:33,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:33,265 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 174 transitions. [2024-11-09 06:08:33,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:33,266 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 174 transitions. [2024-11-09 06:08:33,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 06:08:33,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:33,266 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:33,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 06:08:33,267 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:33,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:33,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1483645017, now seen corresponding path program 1 times [2024-11-09 06:08:33,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:33,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56747394] [2024-11-09 06:08:33,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:33,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:33,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:33,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:33,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56747394] [2024-11-09 06:08:33,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56747394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:33,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:33,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 06:08:33,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302347891] [2024-11-09 06:08:33,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:33,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:08:33,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:33,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:08:33,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:08:33,647 INFO L87 Difference]: Start difference. First operand 146 states and 174 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:34,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:34,128 INFO L93 Difference]: Finished difference Result 170 states and 205 transitions. [2024-11-09 06:08:34,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:08:34,128 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 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 18 [2024-11-09 06:08:34,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:34,129 INFO L225 Difference]: With dead ends: 170 [2024-11-09 06:08:34,129 INFO L226 Difference]: Without dead ends: 170 [2024-11-09 06:08:34,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:08:34,129 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 49 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:34,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 256 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:08:34,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-09 06:08:34,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 145. [2024-11-09 06:08:34,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 114 states have (on average 1.5087719298245614) internal successors, (172), 144 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:34,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 172 transitions. [2024-11-09 06:08:34,133 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 172 transitions. Word has length 18 [2024-11-09 06:08:34,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:34,134 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 172 transitions. [2024-11-09 06:08:34,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:34,134 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 172 transitions. [2024-11-09 06:08:34,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 06:08:34,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:34,135 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:34,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 06:08:34,135 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:34,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:34,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1144886194, now seen corresponding path program 1 times [2024-11-09 06:08:34,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:34,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398865223] [2024-11-09 06:08:34,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:34,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:34,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:34,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:34,240 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:34,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398865223] [2024-11-09 06:08:34,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398865223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:34,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:34,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:08:34,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730472175] [2024-11-09 06:08:34,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:34,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:08:34,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:34,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:08:34,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:08:34,242 INFO L87 Difference]: Start difference. First operand 145 states and 172 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:34,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:34,419 INFO L93 Difference]: Finished difference Result 149 states and 178 transitions. [2024-11-09 06:08:34,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:08:34,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2024-11-09 06:08:34,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:34,420 INFO L225 Difference]: With dead ends: 149 [2024-11-09 06:08:34,420 INFO L226 Difference]: Without dead ends: 149 [2024-11-09 06:08:34,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:08:34,421 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 42 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:34,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 73 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:08:34,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-09 06:08:34,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 137. [2024-11-09 06:08:34,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 113 states have (on average 1.4513274336283186) internal successors, (164), 136 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:34,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 164 transitions. [2024-11-09 06:08:34,425 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 164 transitions. Word has length 20 [2024-11-09 06:08:34,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:34,425 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 164 transitions. [2024-11-09 06:08:34,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:34,426 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 164 transitions. [2024-11-09 06:08:34,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 06:08:34,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:34,426 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:34,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 06:08:34,427 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr44REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:34,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:34,427 INFO L85 PathProgramCache]: Analyzing trace with hash -151241132, now seen corresponding path program 1 times [2024-11-09 06:08:34,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:34,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848750484] [2024-11-09 06:08:34,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:34,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:34,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:34,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:34,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848750484] [2024-11-09 06:08:34,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848750484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:34,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:34,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 06:08:34,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961726671] [2024-11-09 06:08:34,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:34,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:08:34,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:34,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:08:34,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:08:34,652 INFO L87 Difference]: Start difference. First operand 137 states and 164 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:35,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:35,038 INFO L93 Difference]: Finished difference Result 147 states and 176 transitions. [2024-11-09 06:08:35,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:08:35,038 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 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 20 [2024-11-09 06:08:35,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:35,039 INFO L225 Difference]: With dead ends: 147 [2024-11-09 06:08:35,039 INFO L226 Difference]: Without dead ends: 147 [2024-11-09 06:08:35,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:08:35,040 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 43 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:35,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 222 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:08:35,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-09 06:08:35,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 136. [2024-11-09 06:08:35,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 113 states have (on average 1.4424778761061947) internal successors, (163), 135 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:35,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 163 transitions. [2024-11-09 06:08:35,046 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 163 transitions. Word has length 20 [2024-11-09 06:08:35,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:35,046 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 163 transitions. [2024-11-09 06:08:35,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:35,046 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 163 transitions. [2024-11-09 06:08:35,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 06:08:35,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:35,047 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:35,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-09 06:08:35,047 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr45REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:35,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:35,051 INFO L85 PathProgramCache]: Analyzing trace with hash -151241131, now seen corresponding path program 1 times [2024-11-09 06:08:35,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:35,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709300229] [2024-11-09 06:08:35,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:35,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:35,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:35,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:35,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709300229] [2024-11-09 06:08:35,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709300229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:35,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:35,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 06:08:35,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821894590] [2024-11-09 06:08:35,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:35,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:08:35,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:35,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:08:35,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:08:35,570 INFO L87 Difference]: Start difference. First operand 136 states and 163 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:36,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:36,148 INFO L93 Difference]: Finished difference Result 146 states and 175 transitions. [2024-11-09 06:08:36,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:08:36,149 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 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 20 [2024-11-09 06:08:36,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:36,149 INFO L225 Difference]: With dead ends: 146 [2024-11-09 06:08:36,150 INFO L226 Difference]: Without dead ends: 146 [2024-11-09 06:08:36,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-09 06:08:36,151 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 40 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:36,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 241 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:08:36,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-09 06:08:36,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 135. [2024-11-09 06:08:36,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 113 states have (on average 1.4336283185840708) internal successors, (162), 134 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:36,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 162 transitions. [2024-11-09 06:08:36,156 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 162 transitions. Word has length 20 [2024-11-09 06:08:36,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:36,156 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 162 transitions. [2024-11-09 06:08:36,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:36,156 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 162 transitions. [2024-11-09 06:08:36,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 06:08:36,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:36,157 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:36,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-09 06:08:36,157 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:36,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:36,158 INFO L85 PathProgramCache]: Analyzing trace with hash 735505067, now seen corresponding path program 1 times [2024-11-09 06:08:36,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:36,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234165466] [2024-11-09 06:08:36,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:36,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:36,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:36,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:36,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234165466] [2024-11-09 06:08:36,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234165466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:36,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:36,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:08:36,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857784430] [2024-11-09 06:08:36,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:36,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:08:36,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:36,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:08:36,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:08:36,473 INFO L87 Difference]: Start difference. First operand 135 states and 162 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:37,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:37,002 INFO L93 Difference]: Finished difference Result 160 states and 192 transitions. [2024-11-09 06:08:37,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:08:37,003 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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 22 [2024-11-09 06:08:37,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:37,004 INFO L225 Difference]: With dead ends: 160 [2024-11-09 06:08:37,004 INFO L226 Difference]: Without dead ends: 160 [2024-11-09 06:08:37,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:08:37,005 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 114 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:37,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 193 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:08:37,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-09 06:08:37,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 146. [2024-11-09 06:08:37,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 124 states have (on average 1.4274193548387097) internal successors, (177), 145 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:37,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 177 transitions. [2024-11-09 06:08:37,011 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 177 transitions. Word has length 22 [2024-11-09 06:08:37,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:37,011 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 177 transitions. [2024-11-09 06:08:37,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:37,012 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 177 transitions. [2024-11-09 06:08:37,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 06:08:37,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:37,012 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:37,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-09 06:08:37,013 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:37,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:37,013 INFO L85 PathProgramCache]: Analyzing trace with hash 735493091, now seen corresponding path program 1 times [2024-11-09 06:08:37,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:37,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228004912] [2024-11-09 06:08:37,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:37,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:37,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:37,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:37,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:37,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228004912] [2024-11-09 06:08:37,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228004912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:37,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:37,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:08:37,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033304965] [2024-11-09 06:08:37,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:37,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:08:37,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:37,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:08:37,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:08:37,172 INFO L87 Difference]: Start difference. First operand 146 states and 177 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:37,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:37,404 INFO L93 Difference]: Finished difference Result 171 states and 205 transitions. [2024-11-09 06:08:37,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:08:37,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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 22 [2024-11-09 06:08:37,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:37,406 INFO L225 Difference]: With dead ends: 171 [2024-11-09 06:08:37,406 INFO L226 Difference]: Without dead ends: 171 [2024-11-09 06:08:37,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:08:37,407 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 69 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:37,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 87 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:08:37,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-09 06:08:37,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 130. [2024-11-09 06:08:37,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 114 states have (on average 1.3771929824561404) internal successors, (157), 129 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:37,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 157 transitions. [2024-11-09 06:08:37,413 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 157 transitions. Word has length 22 [2024-11-09 06:08:37,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:37,413 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 157 transitions. [2024-11-09 06:08:37,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:37,413 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 157 transitions. [2024-11-09 06:08:37,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 06:08:37,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:37,414 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:37,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-09 06:08:37,415 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:37,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:37,415 INFO L85 PathProgramCache]: Analyzing trace with hash 724010217, now seen corresponding path program 1 times [2024-11-09 06:08:37,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:37,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019071956] [2024-11-09 06:08:37,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:37,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:38,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:38,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:38,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019071956] [2024-11-09 06:08:38,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019071956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:38,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:38,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:08:38,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339407701] [2024-11-09 06:08:38,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:38,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:08:38,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:38,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:08:38,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:08:38,043 INFO L87 Difference]: Start difference. First operand 130 states and 157 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:38,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:38,828 INFO L93 Difference]: Finished difference Result 163 states and 194 transitions. [2024-11-09 06:08:38,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 06:08:38,828 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 22 [2024-11-09 06:08:38,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:38,829 INFO L225 Difference]: With dead ends: 163 [2024-11-09 06:08:38,829 INFO L226 Difference]: Without dead ends: 163 [2024-11-09 06:08:38,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2024-11-09 06:08:38,831 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 171 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:38,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 198 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 06:08:38,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-09 06:08:38,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 130. [2024-11-09 06:08:38,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 114 states have (on average 1.3596491228070176) internal successors, (155), 129 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:38,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 155 transitions. [2024-11-09 06:08:38,835 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 155 transitions. Word has length 22 [2024-11-09 06:08:38,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:38,836 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 155 transitions. [2024-11-09 06:08:38,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:08:38,836 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 155 transitions. [2024-11-09 06:08:38,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 06:08:38,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:38,837 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:38,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-09 06:08:38,837 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr50REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:08:38,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:38,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1009723247, now seen corresponding path program 1 times [2024-11-09 06:08:38,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:38,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571056137] [2024-11-09 06:08:38,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:38,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:39,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:39,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:39,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571056137] [2024-11-09 06:08:39,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571056137] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:08:39,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434408158] [2024-11-09 06:08:39,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:39,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:08:39,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:08:39,032 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:08:39,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:08:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:39,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 06:08:39,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:08:39,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 06:08:39,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 06:08:39,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-11-09 06:08:39,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-11-09 06:08:39,464 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:39,464 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:08:39,558 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:39,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434408158] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:08:39,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1520126748] [2024-11-09 06:08:39,589 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 06:08:39,590 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:08:39,595 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:08:39,602 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:08:39,603 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:08:41,509 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:10:52,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1520126748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:10:52,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:10:52,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 24 [2024-11-09 06:10:52,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595762327] [2024-11-09 06:10:52,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:10:52,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 06:10:52,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:10:52,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 06:10:52,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=422, Unknown=57, NotChecked=0, Total=552 [2024-11-09 06:10:52,602 INFO L87 Difference]: Start difference. First operand 130 states and 155 transitions. Second operand has 22 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:10:56,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:10:58,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:01,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:03,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:05,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:07,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:10,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:12,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:14,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:16,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:18,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:20,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:22,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:24,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:26,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:28,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:30,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:32,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:34,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:36,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:38,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:40,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:42,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:44,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:47,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:57,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:11:59,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:12:01,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:12:03,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:12:05,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:12:20,719 WARN L286 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 136 DAG size of output: 134 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:12:23,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:12:25,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:12:27,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:12:54,902 WARN L286 SmtUtils]: Spent 7.69s on a formula simplification. DAG size of input: 128 DAG size of output: 126 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:12:57,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:12:59,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:13:01,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:13:17,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:13:19,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:13:21,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:13:25,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:13:27,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:13:29,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:13:31,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:13:34,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:13:36,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:13:38,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:13:40,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:13:42,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:13:57,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:13:59,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:14:02,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:14:04,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:14:06,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:14:06,137 INFO L93 Difference]: Finished difference Result 160 states and 186 transitions. [2024-11-09 06:14:06,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 06:14:06,137 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 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 26 [2024-11-09 06:14:06,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:14:06,138 INFO L225 Difference]: With dead ends: 160 [2024-11-09 06:14:06,138 INFO L226 Difference]: Without dead ends: 160 [2024-11-09 06:14:06,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 206.6s TimeCoverageRelationStatistics Valid=93, Invalid=535, Unknown=74, NotChecked=0, Total=702 [2024-11-09 06:14:06,139 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 25 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 18 mSolverCounterUnsat, 56 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 116.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 56 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 118.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:14:06,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 264 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1186 Invalid, 56 Unknown, 0 Unchecked, 118.0s Time] [2024-11-09 06:14:06,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-09 06:14:06,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 148. [2024-11-09 06:14:06,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 132 states have (on average 1.3181818181818181) internal successors, (174), 147 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:14:06,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 174 transitions. [2024-11-09 06:14:06,145 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 174 transitions. Word has length 26 [2024-11-09 06:14:06,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:14:06,145 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 174 transitions. [2024-11-09 06:14:06,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:14:06,146 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 174 transitions. [2024-11-09 06:14:06,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 06:14:06,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:14:06,146 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:14:06,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 06:14:06,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-09 06:14:06,351 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:14:06,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:14:06,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1009787696, now seen corresponding path program 1 times [2024-11-09 06:14:06,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:14:06,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007326395] [2024-11-09 06:14:06,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:14:06,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:14:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:14:06,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:14:06,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:14:06,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007326395] [2024-11-09 06:14:06,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007326395] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:14:06,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892531564] [2024-11-09 06:14:06,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:14:06,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:14:06,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:14:06,960 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:14:06,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:14:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:14:07,129 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 06:14:07,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:14:07,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:14:07,526 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:14:07,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 30 [2024-11-09 06:14:07,686 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-09 06:14:07,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 29 [2024-11-09 06:14:07,822 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~n~0#1.base_125| Int) (v_DerPreprocessor_2 Int) (|v_ULTIMATE.start_main_~st~0#1.base_46| Int)) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~n~0#1.base_125|) 0) (= v_DerPreprocessor_2 (select (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~n~0#1.base_125| v_DerPreprocessor_2) |v_ULTIMATE.start_main_~st~0#1.base_46| 0) |v_ULTIMATE.start_main_~n~0#1.base_125|)) (= |c_#valid| (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~st~0#1.base_46| 0) |v_ULTIMATE.start_main_~n~0#1.base_125| 0)) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~st~0#1.base_46|) 0))) is different from true [2024-11-09 06:14:07,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2024-11-09 06:14:07,852 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:14:07,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2024-11-09 06:14:07,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 44 [2024-11-09 06:14:08,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2024-11-09 06:14:08,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2024-11-09 06:14:12,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:14:12,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892531564] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:14:12,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1089111679] [2024-11-09 06:14:12,927 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2024-11-09 06:14:12,927 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:14:12,928 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:14:12,928 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:14:12,928 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:14:14,162 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:15:59,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1089111679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:15:59,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:15:59,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [9, 9, 8] total 40 [2024-11-09 06:15:59,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050331471] [2024-11-09 06:15:59,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:15:59,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 06:15:59,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:15:59,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 06:15:59,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1421, Unknown=40, NotChecked=78, Total=1722 [2024-11-09 06:15:59,534 INFO L87 Difference]: Start difference. First operand 148 states and 174 transitions. Second operand has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:16:02,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:05,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:07,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:09,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:12,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:14,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:16,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:18,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:20,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:22,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:24,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:26,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:28,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:30,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:32,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:35,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:37,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:39,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:41,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:43,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:45,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:47,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:49,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:51,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:53,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:56,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:16:58,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:17:00,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:17:02,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:17:04,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:17:06,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:17:09,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:17:11,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:17:13,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:17:15,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:17:17,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:17:19,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:17:42,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:17:45,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:17:46,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:17:46,646 INFO L93 Difference]: Finished difference Result 150 states and 174 transitions. [2024-11-09 06:17:46,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 06:17:46,647 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 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 26 [2024-11-09 06:17:46,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:17:46,648 INFO L225 Difference]: With dead ends: 150 [2024-11-09 06:17:46,648 INFO L226 Difference]: Without dead ends: 130 [2024-11-09 06:17:46,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 40 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 130.7s TimeCoverageRelationStatistics Valid=188, Invalid=1495, Unknown=43, NotChecked=80, Total=1806 [2024-11-09 06:17:46,649 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 17 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 3 mSolverCounterUnsat, 45 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 45 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:17:46,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 208 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 900 Invalid, 45 Unknown, 0 Unchecked, 86.7s Time] [2024-11-09 06:17:46,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-09 06:17:46,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2024-11-09 06:17:46,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 114 states have (on average 1.3508771929824561) internal successors, (154), 129 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:17:46,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 154 transitions. [2024-11-09 06:17:46,654 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 154 transitions. Word has length 26 [2024-11-09 06:17:46,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:17:46,654 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 154 transitions. [2024-11-09 06:17:46,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:17:46,655 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 154 transitions. [2024-11-09 06:17:46,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 06:17:46,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:17:46,655 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 06:17:46,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 06:17:46,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-09 06:17:46,860 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-11-09 06:17:46,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:17:46,861 INFO L85 PathProgramCache]: Analyzing trace with hash -402459183, now seen corresponding path program 1 times [2024-11-09 06:17:46,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:17:46,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209345970] [2024-11-09 06:17:46,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:17:46,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:17:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:17:47,781 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:17:47,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:17:47,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209345970] [2024-11-09 06:17:47,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209345970] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:17:47,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518687293] [2024-11-09 06:17:47,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:17:47,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:17:47,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:17:47,784 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:17:47,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187838ac-bb88-4fb2-b910-88be48be310d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:17:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:17:47,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-09 06:17:47,952 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:17:48,335 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-09 06:17:48,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-09 06:17:48,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:17:48,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-11-09 06:17:48,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:17:48,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-11-09 06:17:48,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:17:48,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:17:48,684 INFO L349 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2024-11-09 06:17:48,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 46 [2024-11-09 06:17:48,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 18 [2024-11-09 06:17:48,845 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-09 06:17:48,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 53 [2024-11-09 06:17:48,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 18 [2024-11-09 06:17:48,996 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-09 06:17:48,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 53 [2024-11-09 06:17:49,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 18 [2024-11-09 06:17:49,186 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:17:49,187 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:17:49,230 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1167 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem24#1.base| v_ArrVal_1167) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0)) (forall ((v_ArrVal_1168 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem24#1.base| v_ArrVal_1168) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0))) is different from false [2024-11-09 06:17:49,306 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4))) (and (forall ((v_ArrVal_1167 (Array Int Int)) (v_ArrVal_1166 (Array Int Int)) (v_ArrVal_1165 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem23#1.base| v_ArrVal_1166) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem23#1.base| v_ArrVal_1165) |c_ULTIMATE.start_main_~n~0#1.base|) .cse0) v_ArrVal_1167) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0)) (forall ((v_ArrVal_1168 (Array Int Int)) (v_ArrVal_1165 (Array Int Int))) (= (select (select (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem23#1.base| v_ArrVal_1165))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~n~0#1.base|) .cse0) v_ArrVal_1168)) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0)))) is different from false [2024-11-09 06:17:49,326 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) .cse1))) (and (forall ((v_ArrVal_1167 (Array Int Int)) (v_ArrVal_1166 (Array Int Int)) (v_ArrVal_1165 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1166) (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1165) |c_ULTIMATE.start_main_~n~0#1.base|) .cse1) v_ArrVal_1167) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0)) (forall ((v_ArrVal_1168 (Array Int Int)) (v_ArrVal_1165 (Array Int Int))) (= (select (select (let ((.cse2 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1165))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~n~0#1.base|) .cse1) v_ArrVal_1168)) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0))))) is different from false [2024-11-09 06:17:49,358 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4)) (.cse3 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem22#1.base|))) (and (forall ((v_ArrVal_1162 Int) (v_ArrVal_1168 (Array Int Int)) (v_ArrVal_1165 (Array Int Int))) (= (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem22#1.base| (store .cse3 |c_ULTIMATE.start_main_#t~mem22#1.offset| v_ArrVal_1162)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~n~0#1.base|) .cse1) v_ArrVal_1165)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~n~0#1.base|) .cse1) v_ArrVal_1168)) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0)) (forall ((v_ArrVal_1162 Int) (v_ArrVal_1167 (Array Int Int)) (v_ArrVal_1166 (Array Int Int)) (v_ArrVal_1165 (Array Int Int)) (v_ArrVal_1164 (Array Int Int))) (= (select (select (let ((.cse5 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem22#1.base| (store .cse3 |c_ULTIMATE.start_main_#t~mem22#1.offset| v_ArrVal_1162)))) (let ((.cse4 (select (select .cse5 |c_ULTIMATE.start_main_~n~0#1.base|) .cse1))) (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem22#1.base| v_ArrVal_1164) .cse4 v_ArrVal_1166) (select (select (store .cse5 .cse4 v_ArrVal_1165) |c_ULTIMATE.start_main_~n~0#1.base|) .cse1) v_ArrVal_1167))) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0)))) is different from false [2024-11-09 06:17:49,408 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) .cse4))) (let ((.cse0 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~n~0#1.base|) .cse4)) (.cse5 (select |c_#memory_$Pointer$.base| .cse1))) (and (forall ((|v_ULTIMATE.start_main_#t~mem22#1.offset_16| Int)) (or (< .cse0 |v_ULTIMATE.start_main_#t~mem22#1.offset_16|) (forall ((v_ArrVal_1162 Int) (v_ArrVal_1167 (Array Int Int)) (v_ArrVal_1166 (Array Int Int)) (v_ArrVal_1165 (Array Int Int)) (v_ArrVal_1164 (Array Int Int))) (= (select (select (let ((.cse3 (store |c_#memory_$Pointer$.base| .cse1 (store .cse5 |v_ULTIMATE.start_main_#t~mem22#1.offset_16| v_ArrVal_1162)))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~n~0#1.base|) .cse4))) (store (store (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_1164) .cse2 v_ArrVal_1166) (select (select (store .cse3 .cse2 v_ArrVal_1165) |c_ULTIMATE.start_main_~n~0#1.base|) .cse4) v_ArrVal_1167))) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0)))) (forall ((|v_ULTIMATE.start_main_#t~mem22#1.offset_16| Int)) (or (< .cse0 |v_ULTIMATE.start_main_#t~mem22#1.offset_16|) (forall ((v_ArrVal_1162 Int) (v_ArrVal_1168 (Array Int Int)) (v_ArrVal_1165 (Array Int Int))) (= (select (select (let ((.cse6 (let ((.cse7 (store |c_#memory_$Pointer$.base| .cse1 (store .cse5 |v_ULTIMATE.start_main_#t~mem22#1.offset_16| v_ArrVal_1162)))) (store .cse7 (select (select .cse7 |c_ULTIMATE.start_main_~n~0#1.base|) .cse4) v_ArrVal_1165)))) (store .cse6 (select (select .cse6 |c_ULTIMATE.start_main_~n~0#1.base|) .cse4) v_ArrVal_1168)) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0)))))))) is different from false [2024-11-09 06:17:49,469 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4))) (let ((.cse3 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) .cse1 |c_ULTIMATE.start_main_#t~malloc21#1.base|)))) (let ((.cse4 (select .cse3 |c_ULTIMATE.start_main_#t~malloc21#1.base|))) (and (forall ((|v_ULTIMATE.start_main_#t~mem22#1.offset_16| Int) (v_ArrVal_1162 Int) (v_ArrVal_1168 (Array Int Int)) (v_ArrVal_1165 (Array Int Int))) (or (< |c_ULTIMATE.start_main_#t~malloc21#1.offset| |v_ULTIMATE.start_main_#t~mem22#1.offset_16|) (= (select (select (let ((.cse0 (let ((.cse2 (store .cse3 |c_ULTIMATE.start_main_#t~malloc21#1.base| (store .cse4 |v_ULTIMATE.start_main_#t~mem22#1.offset_16| v_ArrVal_1162)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~n~0#1.base|) .cse1) v_ArrVal_1165)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~n~0#1.base|) .cse1) v_ArrVal_1168)) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0))) (forall ((v_ArrVal_1160 Int)) (or (forall ((|v_ULTIMATE.start_main_#t~mem22#1.offset_16| Int)) (or (< v_ArrVal_1160 |v_ULTIMATE.start_main_#t~mem22#1.offset_16|) (forall ((v_ArrVal_1162 Int) (v_ArrVal_1167 (Array Int Int)) (v_ArrVal_1166 (Array Int Int)) (v_ArrVal_1165 (Array Int Int)) (v_ArrVal_1164 (Array Int Int))) (= (select (select (let ((.cse6 (store .cse3 |c_ULTIMATE.start_main_#t~malloc21#1.base| (store .cse4 |v_ULTIMATE.start_main_#t~mem22#1.offset_16| v_ArrVal_1162)))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~n~0#1.base|) .cse1))) (store (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~n~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~n~0#1.base|) .cse1 v_ArrVal_1160)) |c_ULTIMATE.start_main_#t~malloc21#1.base| v_ArrVal_1164) .cse5 v_ArrVal_1166) (select (select (store .cse6 .cse5 v_ArrVal_1165) |c_ULTIMATE.start_main_~n~0#1.base|) .cse1) v_ArrVal_1167))) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0)))) (< |c_ULTIMATE.start_main_#t~malloc21#1.offset| v_ArrVal_1160))))))) is different from false [2024-11-09 06:17:50,490 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:17:50,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 310 treesize of output 314 [2024-11-09 06:17:50,803 INFO L349 Elim1Store]: treesize reduction 68, result has 66.2 percent of original size [2024-11-09 06:17:50,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 292 treesize of output 390 [2024-11-09 06:17:50,892 INFO L349 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2024-11-09 06:17:50,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 499 treesize of output 497 [2024-11-09 06:17:50,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 463 treesize of output 377 [2024-11-09 06:17:51,077 INFO L349 Elim1Store]: treesize reduction 4, result has 84.0 percent of original size [2024-11-09 06:17:51,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 735 treesize of output 723 [2024-11-09 06:17:54,108 INFO L349 Elim1Store]: treesize reduction 1334, result has 21.6 percent of original size [2024-11-09 06:17:54,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 10 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 14 new quantified variables, introduced 75 case distinctions, treesize of input 3011 treesize of output 4038 [2024-11-09 06:17:54,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 849 treesize of output 817 [2024-11-09 06:17:54,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 817 treesize of output 811 [2024-11-09 06:17:55,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 811 treesize of output 809 [2024-11-09 06:17:55,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 809 treesize of output 795 [2024-11-09 06:17:56,023 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:17:56,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 802 treesize of output 826 [2024-11-09 06:17:56,500 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:17:56,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 785 treesize of output 748 [2024-11-09 06:17:56,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 737 treesize of output 721 [2024-11-09 06:18:02,478 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:02,479 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:03,816 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:03,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:03,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:04,256 INFO L349 Elim1Store]: treesize reduction 5539, result has 0.0 percent of original size [2024-11-09 06:18:04,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 21 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 23 new quantified variables, introduced 112 case distinctions, treesize of input 2496 treesize of output 1 [2024-11-09 06:18:05,232 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:05,233 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:05,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:05,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:07,190 INFO L349 Elim1Store]: treesize reduction 11613, result has 0.0 percent of original size [2024-11-09 06:18:07,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 39 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 41 new quantified variables, introduced 223 case distinctions, treesize of input 22200 treesize of output 1 [2024-11-09 06:18:07,363 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:07,365 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:07,705 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:07,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:07,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:07,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:07,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:07,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:07,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:07,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:07,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:08,209 INFO L349 Elim1Store]: treesize reduction 8417, result has 0.0 percent of original size [2024-11-09 06:18:08,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 31 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 35 new quantified variables, introduced 233 case distinctions, treesize of input 5016 treesize of output 1 [2024-11-09 06:18:08,660 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:08,662 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:08,790 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:08,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:08,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:08,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:08,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:08,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:08,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:08,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:08,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:09,336 INFO L349 Elim1Store]: treesize reduction 8417, result has 0.0 percent of original size [2024-11-09 06:18:09,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 31 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 35 new quantified variables, introduced 233 case distinctions, treesize of input 5016 treesize of output 1 [2024-11-09 06:18:09,942 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:09,943 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:09,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:10,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:10,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:10,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:10,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:10,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:10,815 INFO L349 Elim1Store]: treesize reduction 9188, result has 0.0 percent of original size [2024-11-09 06:18:10,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 31 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 35 new quantified variables, introduced 240 case distinctions, treesize of input 30361 treesize of output 1 [2024-11-09 06:18:12,225 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:12,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:12,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:12,723 INFO L349 Elim1Store]: treesize reduction 5539, result has 0.0 percent of original size [2024-11-09 06:18:12,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 21 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 23 new quantified variables, introduced 112 case distinctions, treesize of input 2496 treesize of output 1 [2024-11-09 06:18:19,128 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:19,129 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:19,130 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:19,136 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:19,477 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:19,478 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:19,488 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:19,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:19,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:19,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:19,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:19,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:19,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:19,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:19,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:23,799 INFO L349 Elim1Store]: treesize reduction 19467, result has 0.0 percent of original size [2024-11-09 06:18:23,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 48 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 54 new quantified variables, introduced 473 case distinctions, treesize of input 15681 treesize of output 1 [2024-11-09 06:18:28,071 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:28,073 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:28,074 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:28,081 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:33,091 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:33,092 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:33,104 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:33,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:33,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:33,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:33,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:33,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:33,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:33,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:33,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:36,748 INFO L349 Elim1Store]: treesize reduction 19467, result has 0.0 percent of original size [2024-11-09 06:18:36,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 48 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 54 new quantified variables, introduced 473 case distinctions, treesize of input 15681 treesize of output 1 [2024-11-09 06:18:56,197 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:56,198 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:56,208 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:18:56,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:56,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:56,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:56,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:56,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:56,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:56,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:18:56,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:00,374 INFO L349 Elim1Store]: treesize reduction 19467, result has 0.0 percent of original size [2024-11-09 06:19:00,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 48 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 54 new quantified variables, introduced 473 case distinctions, treesize of input 15681 treesize of output 1 [2024-11-09 06:19:00,501 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:00,502 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:00,503 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:00,508 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:00,630 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:00,630 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:00,639 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:00,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:00,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:00,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:00,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:00,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:00,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:00,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:00,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:04,436 INFO L349 Elim1Store]: treesize reduction 19467, result has 0.0 percent of original size [2024-11-09 06:19:04,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 48 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 54 new quantified variables, introduced 473 case distinctions, treesize of input 15681 treesize of output 1 [2024-11-09 06:19:04,573 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:04,574 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:04,575 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:04,580 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:04,744 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:04,745 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:04,755 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:04,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:04,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:04,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:04,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:04,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:04,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:04,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:04,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:08,819 INFO L349 Elim1Store]: treesize reduction 19467, result has 0.0 percent of original size [2024-11-09 06:19:08,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 48 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 54 new quantified variables, introduced 473 case distinctions, treesize of input 15681 treesize of output 1 [2024-11-09 06:19:08,953 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:08,954 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:08,955 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:08,960 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:21,782 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:21,784 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:22,201 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:22,203 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:22,862 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:22,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:22,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:23,275 INFO L349 Elim1Store]: treesize reduction 5539, result has 0.0 percent of original size [2024-11-09 06:19:23,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 21 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 23 new quantified variables, introduced 112 case distinctions, treesize of input 2496 treesize of output 1 [2024-11-09 06:19:23,375 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:23,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:23,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:23,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:23,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:23,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:23,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:23,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:23,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:23,902 INFO L349 Elim1Store]: treesize reduction 8417, result has 0.0 percent of original size [2024-11-09 06:19:23,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 31 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 35 new quantified variables, introduced 233 case distinctions, treesize of input 5016 treesize of output 1 [2024-11-09 06:19:24,686 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:24,687 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:24,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:24,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:25,238 INFO L349 Elim1Store]: treesize reduction 6790, result has 0.0 percent of original size [2024-11-09 06:19:25,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 25 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 27 new quantified variables, introduced 135 case distinctions, treesize of input 25004 treesize of output 1 [2024-11-09 06:19:25,888 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:25,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:25,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:26,459 INFO L349 Elim1Store]: treesize reduction 6140, result has 0.0 percent of original size [2024-11-09 06:19:26,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 23 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 25 new quantified variables, introduced 123 case distinctions, treesize of input 6671 treesize of output 1 [2024-11-09 06:19:26,579 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:26,579 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:26,683 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:26,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:26,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:26,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:26,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:26,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:26,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:26,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:26,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:27,266 INFO L349 Elim1Store]: treesize reduction 8417, result has 0.0 percent of original size [2024-11-09 06:19:27,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 31 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 35 new quantified variables, introduced 233 case distinctions, treesize of input 5016 treesize of output 1 [2024-11-09 06:19:27,877 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:27,878 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:27,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:27,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:28,422 INFO L349 Elim1Store]: treesize reduction 6975, result has 0.0 percent of original size [2024-11-09 06:19:28,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 25 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 27 new quantified variables, introduced 137 case distinctions, treesize of input 29872 treesize of output 1 [2024-11-09 06:19:28,549 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:28,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:28,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:28,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:28,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:28,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:28,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:28,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:28,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:29,145 INFO L349 Elim1Store]: treesize reduction 8417, result has 0.0 percent of original size [2024-11-09 06:19:29,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 31 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 35 new quantified variables, introduced 233 case distinctions, treesize of input 5016 treesize of output 1 [2024-11-09 06:19:29,778 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:29,778 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:29,783 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:29,793 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:29,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:29,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:39,371 WARN L286 SmtUtils]: Spent 9.34s on a formula simplification. DAG size of input: 3265 DAG size of output: 1 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 06:19:39,371 INFO L349 Elim1Store]: treesize reduction 23826, result has 0.0 percent of original size [2024-11-09 06:19:39,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 79 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 82 new quantified variables, introduced 527 case distinctions, treesize of input 39398 treesize of output 1 [2024-11-09 06:19:39,387 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:39,388 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:39,394 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:39,400 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:39,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:39,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:48,629 WARN L286 SmtUtils]: Spent 8.91s on a formula simplification. DAG size of input: 3265 DAG size of output: 1 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 06:19:48,630 INFO L349 Elim1Store]: treesize reduction 23826, result has 0.0 percent of original size [2024-11-09 06:19:48,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 79 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 82 new quantified variables, introduced 527 case distinctions, treesize of input 45467 treesize of output 1 [2024-11-09 06:19:48,643 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:48,643 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:48,648 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:48,660 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:19:48,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:19:48,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:12,625 WARN L286 SmtUtils]: Spent 23.44s on a formula simplification. DAG size of input: 4893 DAG size of output: 1 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 06:20:12,626 INFO L349 Elim1Store]: treesize reduction 35956, result has 0.0 percent of original size [2024-11-09 06:20:12,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 118 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 121 new quantified variables, introduced 797 case distinctions, treesize of input 256169 treesize of output 1 [2024-11-09 06:20:12,647 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:12,647 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:12,656 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:12,657 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:12,671 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:12,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:12,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:13,015 INFO L224 Elim1Store]: Index analysis took 162 ms [2024-11-09 06:20:36,968 WARN L286 SmtUtils]: Spent 23.64s on a formula simplification. DAG size of input: 5022 DAG size of output: 1 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 06:20:36,968 INFO L349 Elim1Store]: treesize reduction 37243, result has 0.0 percent of original size [2024-11-09 06:20:36,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 120 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 123 new quantified variables, introduced 813 case distinctions, treesize of input 95109 treesize of output 1 [2024-11-09 06:20:37,110 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:37,111 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:37,234 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:37,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:37,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:37,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:37,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:37,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:37,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:37,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:37,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:37,388 INFO L224 Elim1Store]: Index analysis took 125 ms [2024-11-09 06:20:38,006 INFO L349 Elim1Store]: treesize reduction 8417, result has 0.0 percent of original size [2024-11-09 06:20:38,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 31 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 35 new quantified variables, introduced 233 case distinctions, treesize of input 5016 treesize of output 1 [2024-11-09 06:20:38,143 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:38,145 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:38,333 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:38,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:38,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:38,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:38,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:38,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:38,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:38,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:38,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:38,488 INFO L224 Elim1Store]: Index analysis took 126 ms [2024-11-09 06:20:38,937 INFO L349 Elim1Store]: treesize reduction 8417, result has 0.0 percent of original size [2024-11-09 06:20:38,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 31 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 35 new quantified variables, introduced 233 case distinctions, treesize of input 5016 treesize of output 1 [2024-11-09 06:20:39,574 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:39,575 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:39,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:39,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:39,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:39,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:39,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:39,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:39,741 INFO L224 Elim1Store]: Index analysis took 136 ms [2024-11-09 06:20:40,345 INFO L349 Elim1Store]: treesize reduction 8399, result has 0.0 percent of original size [2024-11-09 06:20:40,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 29 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 33 new quantified variables, introduced 224 case distinctions, treesize of input 30287 treesize of output 1 [2024-11-09 06:20:40,455 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:40,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:40,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:40,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:40,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:40,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:40,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:40,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:40,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:40,619 INFO L224 Elim1Store]: Index analysis took 132 ms [2024-11-09 06:20:41,156 INFO L349 Elim1Store]: treesize reduction 8417, result has 0.0 percent of original size [2024-11-09 06:20:41,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 31 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 35 new quantified variables, introduced 233 case distinctions, treesize of input 5016 treesize of output 1 [2024-11-09 06:20:41,341 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:41,344 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:42,134 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:42,134 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:42,147 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:42,147 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:42,148 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:42,159 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:42,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:42,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:42,479 INFO L224 Elim1Store]: Index analysis took 175 ms [2024-11-09 06:20:53,858 WARN L286 SmtUtils]: Spent 11.01s on a formula simplification. DAG size of input: 3398 DAG size of output: 1 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 06:20:53,858 INFO L349 Elim1Store]: treesize reduction 25516, result has 0.0 percent of original size [2024-11-09 06:20:53,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 90 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 92 new quantified variables, introduced 506 case distinctions, treesize of input 738911 treesize of output 1 [2024-11-09 06:20:53,884 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:53,885 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:53,893 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:53,894 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:53,895 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:53,899 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:53,900 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:20:54,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:54,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:20:54,333 INFO L224 Elim1Store]: Index analysis took 221 ms [2024-11-09 06:21:04,990 WARN L286 SmtUtils]: Spent 10.32s on a formula simplification. DAG size of input: 3413 DAG size of output: 1 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 06:21:04,990 INFO L349 Elim1Store]: treesize reduction 25797, result has 0.0 percent of original size [2024-11-09 06:21:04,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 90 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 92 new quantified variables, introduced 508 case distinctions, treesize of input 2138856 treesize of output 1 [2024-11-09 06:21:05,020 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:05,021 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:05,031 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:05,032 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:05,061 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:05,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:21:05,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:21:05,250 INFO L224 Elim1Store]: Index analysis took 157 ms [2024-11-09 06:21:14,196 WARN L286 SmtUtils]: Spent 8.80s on a formula simplification. DAG size of input: 3078 DAG size of output: 1 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 06:21:14,196 INFO L349 Elim1Store]: treesize reduction 23246, result has 0.0 percent of original size [2024-11-09 06:21:14,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 82 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 84 new quantified variables, introduced 461 case distinctions, treesize of input 62706 treesize of output 1 [2024-11-09 06:21:14,235 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:14,236 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:14,247 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:14,248 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:14,280 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:14,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:21:14,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:21:14,493 INFO L224 Elim1Store]: Index analysis took 179 ms [2024-11-09 06:21:23,103 WARN L286 SmtUtils]: Spent 8.45s on a formula simplification. DAG size of input: 3078 DAG size of output: 1 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 06:21:23,103 INFO L349 Elim1Store]: treesize reduction 23246, result has 0.0 percent of original size [2024-11-09 06:21:23,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 82 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 84 new quantified variables, introduced 461 case distinctions, treesize of input 62765 treesize of output 1 [2024-11-09 06:21:23,144 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:23,145 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:23,180 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:23,181 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:23,192 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:23,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:21:23,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:21:23,392 INFO L224 Elim1Store]: Index analysis took 153 ms [2024-11-09 06:21:32,242 WARN L286 SmtUtils]: Spent 8.66s on a formula simplification. DAG size of input: 3078 DAG size of output: 1 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 06:21:32,243 INFO L349 Elim1Store]: treesize reduction 23246, result has 0.0 percent of original size [2024-11-09 06:21:32,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 82 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 84 new quantified variables, introduced 461 case distinctions, treesize of input 506827 treesize of output 1 [2024-11-09 06:21:32,261 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:32,261 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:32,272 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:32,273 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:32,276 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:32,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:21:32,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:21:32,431 INFO L224 Elim1Store]: Index analysis took 112 ms [2024-11-09 06:21:41,741 WARN L286 SmtUtils]: Spent 9.13s on a formula simplification. DAG size of input: 2970 DAG size of output: 1 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 06:21:41,741 INFO L349 Elim1Store]: treesize reduction 22144, result has 0.0 percent of original size [2024-11-09 06:21:41,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 80 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 82 new quantified variables, introduced 447 case distinctions, treesize of input 207743 treesize of output 1 [2024-11-09 06:21:41,792 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:41,793 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:41,805 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:41,806 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:41,809 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:41,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:21:41,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:21:41,988 INFO L224 Elim1Store]: Index analysis took 123 ms [2024-11-09 06:21:50,816 WARN L286 SmtUtils]: Spent 8.61s on a formula simplification. DAG size of input: 2970 DAG size of output: 1 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 06:21:50,817 INFO L349 Elim1Store]: treesize reduction 22144, result has 0.0 percent of original size [2024-11-09 06:21:50,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 80 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 82 new quantified variables, introduced 447 case distinctions, treesize of input 98317 treesize of output 1 [2024-11-09 06:21:50,861 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:50,861 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:50,872 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:50,872 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:50,875 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:51,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:21:51,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:21:51,055 INFO L224 Elim1Store]: Index analysis took 112 ms [2024-11-09 06:21:59,574 WARN L286 SmtUtils]: Spent 8.36s on a formula simplification. DAG size of input: 2970 DAG size of output: 1 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 06:21:59,575 INFO L349 Elim1Store]: treesize reduction 22144, result has 0.0 percent of original size [2024-11-09 06:21:59,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 80 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 82 new quantified variables, introduced 447 case distinctions, treesize of input 98258 treesize of output 1 [2024-11-09 06:21:59,598 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:59,598 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:59,609 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:59,617 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:59,644 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:59,644 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:21:59,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:21:59,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:22:00,043 INFO L224 Elim1Store]: Index analysis took 168 ms [2024-11-09 06:22:27,885 WARN L286 SmtUtils]: Spent 27.00s on a formula simplification. DAG size of input: 5216 DAG size of output: 1 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 06:22:27,885 INFO L349 Elim1Store]: treesize reduction 39561, result has 0.0 percent of original size [2024-11-09 06:22:27,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 135 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 137 new quantified variables, introduced 776 case distinctions, treesize of input 3035270 treesize of output 1 [2024-11-09 06:22:27,915 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:22:27,915 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:22:27,930 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:22:27,930 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:22:27,933 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:22:28,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:22:28,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:22:28,270 INFO L224 Elim1Store]: Index analysis took 130 ms [2024-11-09 06:22:53,097 WARN L286 SmtUtils]: Spent 24.37s on a formula simplification. DAG size of input: 5113 DAG size of output: 1 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 06:22:53,097 INFO L349 Elim1Store]: treesize reduction 38400, result has 0.0 percent of original size [2024-11-09 06:22:53,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 133 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 135 new quantified variables, introduced 762 case distinctions, treesize of input 813516 treesize of output 1 [2024-11-09 06:22:53,909 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:22:54,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:22:54,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:22:54,056 INFO L224 Elim1Store]: Index analysis took 123 ms [2024-11-09 06:22:54,432 INFO L349 Elim1Store]: treesize reduction 5539, result has 0.0 percent of original size [2024-11-09 06:22:54,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 21 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 23 new quantified variables, introduced 112 case distinctions, treesize of input 2496 treesize of output 1 [2024-11-09 06:22:54,595 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:22:54,598 INFO L173 IndexEqualityManager]: detected equality via solver