./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb3a004-dd17-4d23-aa0e-3a0814a316e0/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb3a004-dd17-4d23-aa0e-3a0814a316e0/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb3a004-dd17-4d23-aa0e-3a0814a316e0/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb3a004-dd17-4d23-aa0e-3a0814a316e0/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb3a004-dd17-4d23-aa0e-3a0814a316e0/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb3a004-dd17-4d23-aa0e-3a0814a316e0/bin/utaipan-verify-DbMuA5NWw2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 32a779d95d64b7b3ae1a801430dde2c7d15b3372c5d0cdd47679441a42687631 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:23:01,297 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:23:01,387 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb3a004-dd17-4d23-aa0e-3a0814a316e0/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-02 11:23:01,392 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:23:01,396 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:23:01,434 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:23:01,436 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:23:01,437 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:23:01,438 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:23:01,439 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:23:01,440 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:23:01,440 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:23:01,440 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:23:01,443 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:23:01,443 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:23:01,444 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:23:01,444 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:23:01,444 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:23:01,445 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:23:01,445 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:23:01,445 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:23:01,450 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:23:01,451 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:23:01,451 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:23:01,451 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:23:01,451 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:23:01,452 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:23:01,452 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:23:01,452 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:23:01,452 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:23:01,453 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:23:01,453 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:23:01,453 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-02 11:23:01,453 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 11:23:01,454 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:23:01,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:23:01,454 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:23:01,454 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:23:01,455 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:23:01,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:23:01,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:23:01,456 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:23:01,457 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:23:01,457 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:23:01,457 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:23:01,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:23:01,457 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:23:01,458 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:23:01,458 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:23:01,458 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_afb3a004-dd17-4d23-aa0e-3a0814a316e0/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb3a004-dd17-4d23-aa0e-3a0814a316e0/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32a779d95d64b7b3ae1a801430dde2c7d15b3372c5d0cdd47679441a42687631 [2024-11-02 11:23:01,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:23:01,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:23:01,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:23:01,843 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:23:01,844 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:23:01,845 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb3a004-dd17-4d23-aa0e-3a0814a316e0/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i Unable to find full path for "g++" [2024-11-02 11:23:03,872 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:23:04,152 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:23:04,152 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb3a004-dd17-4d23-aa0e-3a0814a316e0/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i [2024-11-02 11:23:04,177 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb3a004-dd17-4d23-aa0e-3a0814a316e0/bin/utaipan-verify-DbMuA5NWw2/data/cbd2e989f/4e79ef402b0942439a0363cfa9656d2e/FLAGb41e7947d [2024-11-02 11:23:04,203 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb3a004-dd17-4d23-aa0e-3a0814a316e0/bin/utaipan-verify-DbMuA5NWw2/data/cbd2e989f/4e79ef402b0942439a0363cfa9656d2e [2024-11-02 11:23:04,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:23:04,208 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:23:04,212 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:23:04,212 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:23:04,217 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:23:04,218 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:23:04" (1/1) ... [2024-11-02 11:23:04,219 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aa5cbd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:04, skipping insertion in model container [2024-11-02 11:23:04,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:23:04" (1/1) ... [2024-11-02 11:23:04,304 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:23:04,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:23:05,001 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:23:05,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:23:05,188 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:23:05,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:05 WrapperNode [2024-11-02 11:23:05,189 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:23:05,190 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:23:05,190 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:23:05,191 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:23:05,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:05" (1/1) ... [2024-11-02 11:23:05,237 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:05" (1/1) ... [2024-11-02 11:23:05,337 INFO L138 Inliner]: procedures = 177, calls = 330, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1629 [2024-11-02 11:23:05,341 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:23:05,343 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:23:05,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:23:05,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:23:05,361 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:05" (1/1) ... [2024-11-02 11:23:05,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:05" (1/1) ... [2024-11-02 11:23:05,374 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:05" (1/1) ... [2024-11-02 11:23:05,375 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:05" (1/1) ... [2024-11-02 11:23:05,487 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:05" (1/1) ... [2024-11-02 11:23:05,513 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:05" (1/1) ... [2024-11-02 11:23:05,521 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:05" (1/1) ... [2024-11-02 11:23:05,534 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:05" (1/1) ... [2024-11-02 11:23:05,550 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:23:05,552 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:23:05,553 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:23:05,553 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:23:05,554 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:05" (1/1) ... [2024-11-02 11:23:05,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:23:05,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb3a004-dd17-4d23-aa0e-3a0814a316e0/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:23:05,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb3a004-dd17-4d23-aa0e-3a0814a316e0/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:23:05,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb3a004-dd17-4d23-aa0e-3a0814a316e0/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:23:05,621 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-02 11:23:05,621 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-02 11:23:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 11:23:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-02 11:23:05,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-02 11:23:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 11:23:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-02 11:23:05,624 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-02 11:23:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 11:23:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:23:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-02 11:23:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 11:23:05,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 11:23:05,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 11:23:05,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 11:23:05,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:23:05,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:23:05,910 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:23:05,912 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:23:07,793 INFO L? ?]: Removed 352 outVars from TransFormulas that were not future-live. [2024-11-02 11:23:07,793 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:23:09,654 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:23:09,654 INFO L316 CfgBuilder]: Removed 72 assume(true) statements. [2024-11-02 11:23:09,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:23:09 BoogieIcfgContainer [2024-11-02 11:23:09,655 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:23:09,658 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:23:09,659 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:23:09,663 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:23:09,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:23:04" (1/3) ... [2024-11-02 11:23:09,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79959690 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:23:09, skipping insertion in model container [2024-11-02 11:23:09,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:05" (2/3) ... [2024-11-02 11:23:09,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79959690 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:23:09, skipping insertion in model container [2024-11-02 11:23:09,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:23:09" (3/3) ... [2024-11-02 11:23:09,668 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test3-2.i [2024-11-02 11:23:09,688 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:23:09,689 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-02 11:23:09,759 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:23:09,767 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2e303473, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:23:09,767 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-02 11:23:09,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 140 states have (on average 1.75) internal successors, (245), 155 states have internal predecessors, (245), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-02 11:23:09,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-02 11:23:09,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:09,781 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-02 11:23:09,781 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 11:23:09,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:09,788 INFO L85 PathProgramCache]: Analyzing trace with hash 52719409, now seen corresponding path program 1 times [2024-11-02 11:23:09,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:23:09,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717527845] [2024-11-02 11:23:09,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:09,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:23:09,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 11:23:09,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [535935767] [2024-11-02 11:23:09,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:09,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:23:09,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb3a004-dd17-4d23-aa0e-3a0814a316e0/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:23:09,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb3a004-dd17-4d23-aa0e-3a0814a316e0/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:23:09,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb3a004-dd17-4d23-aa0e-3a0814a316e0/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 11:23:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:10,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-02 11:23:10,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:23:10,338 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 [2024-11-02 11:23:10,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-02 11:23:10,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-02 11:23:10,437 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 22 treesize of output 10 [2024-11-02 11:23:10,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:23:10,460 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 11:23:10,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:23:10,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717527845] [2024-11-02 11:23:10,462 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 11:23:10,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535935767] [2024-11-02 11:23:10,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535935767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:23:10,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:23:10,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 11:23:10,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791254147] [2024-11-02 11:23:10,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:23:10,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 11:23:10,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:23:10,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 11:23:10,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 11:23:10,499 INFO L87 Difference]: Start difference. First operand has 162 states, 140 states have (on average 1.75) internal successors, (245), 155 states have internal predecessors, (245), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-02 11:23:13,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 11:23:15,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 11:23:17,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 11:23:19,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 11:23:22,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-02 11:23:24,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 11:23:26,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-02 11:23:28,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-02 11:23:30,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 11:23:32,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-02 11:23:34,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 11:23:36,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 11:23:38,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-02 11:23:38,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:23:38,241 INFO L93 Difference]: Finished difference Result 399 states and 679 transitions. [2024-11-02 11:23:38,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 11:23:38,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-11-02 11:23:38,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:23:38,257 INFO L225 Difference]: With dead ends: 399 [2024-11-02 11:23:38,257 INFO L226 Difference]: Without dead ends: 215 [2024-11-02 11:23:38,261 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 [2024-11-02 11:23:38,264 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 82 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 4 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time [2024-11-02 11:23:38,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 418 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 158 Invalid, 12 Unknown, 0 Unchecked, 27.6s Time] [2024-11-02 11:23:38,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-02 11:23:38,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 146. [2024-11-02 11:23:38,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 128 states have (on average 1.2421875) internal successors, (159), 140 states have internal predecessors, (159), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-02 11:23:38,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 175 transitions. [2024-11-02 11:23:38,321 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 175 transitions. Word has length 4 [2024-11-02 11:23:38,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:23:38,322 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 175 transitions. [2024-11-02 11:23:38,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-02 11:23:38,322 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 175 transitions. [2024-11-02 11:23:38,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-02 11:23:38,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:38,323 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:23:38,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb3a004-dd17-4d23-aa0e-3a0814a316e0/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-02 11:23:38,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afb3a004-dd17-4d23-aa0e-3a0814a316e0/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:23:38,524 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 11:23:38,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:38,525 INFO L85 PathProgramCache]: Analyzing trace with hash 732671241, now seen corresponding path program 1 times [2024-11-02 11:23:38,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:23:38,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089155327] [2024-11-02 11:23:38,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:38,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:23:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:38,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:23:38,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:23:38,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089155327] [2024-11-02 11:23:38,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089155327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:23:38,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:23:38,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:23:38,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512628129] [2024-11-02 11:23:38,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:23:38,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 11:23:38,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:23:38,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 11:23:38,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 11:23:38,825 INFO L87 Difference]: Start difference. First operand 146 states and 175 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-11-02 11:23:40,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-02 11:23:42,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []