./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_7c496a5c-b9c0-4465-8483-a219042e8019/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c496a5c-b9c0-4465-8483-a219042e8019/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c496a5c-b9c0-4465-8483-a219042e8019/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c496a5c-b9c0-4465-8483-a219042e8019/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c496a5c-b9c0-4465-8483-a219042e8019/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c496a5c-b9c0-4465-8483-a219042e8019/bin/ukojak-verify-afCqCEvfdi --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cab0e4c46b209be0775136f8613c1e239028ef0244464c17ac04057ecb0a0b33 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:51:31,441 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:51:31,543 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c496a5c-b9c0-4465-8483-a219042e8019/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-24 22:51:31,551 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:51:31,552 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:51:31,583 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:51:31,584 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:51:31,584 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:51:31,585 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:51:31,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:51:31,586 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:51:31,595 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:51:31,595 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:51:31,598 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:51:31,599 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:51:31,600 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:51:31,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:51:31,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:51:31,602 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:51:31,603 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:51:31,604 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:51:31,604 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:51:31,605 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:51:31,605 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:51:31,606 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:51:31,607 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:51:31,607 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:51:31,607 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:51:31,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:51:31,608 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:51:31,610 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:51:31,610 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:51:31,610 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:51:31,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:51:31,611 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:51:31,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_7c496a5c-b9c0-4465-8483-a219042e8019/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c496a5c-b9c0-4465-8483-a219042e8019/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cab0e4c46b209be0775136f8613c1e239028ef0244464c17ac04057ecb0a0b33 [2023-11-24 22:51:31,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:51:31,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:51:31,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:51:31,904 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:51:31,904 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:51:31,906 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c496a5c-b9c0-4465-8483-a219042e8019/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i [2023-11-24 22:51:35,102 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:51:35,368 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:51:35,369 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c496a5c-b9c0-4465-8483-a219042e8019/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i [2023-11-24 22:51:35,387 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c496a5c-b9c0-4465-8483-a219042e8019/bin/ukojak-verify-afCqCEvfdi/data/c8ab9cb55/e3bedf56c8f04af5b4bbeb46744170b5/FLAGc7607604e [2023-11-24 22:51:35,402 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c496a5c-b9c0-4465-8483-a219042e8019/bin/ukojak-verify-afCqCEvfdi/data/c8ab9cb55/e3bedf56c8f04af5b4bbeb46744170b5 [2023-11-24 22:51:35,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:51:35,406 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:51:35,408 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:51:35,408 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:51:35,413 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:51:35,414 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:51:35" (1/1) ... [2023-11-24 22:51:35,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42fc91c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:35, skipping insertion in model container [2023-11-24 22:51:35,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:51:35" (1/1) ... [2023-11-24 22:51:35,463 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:51:35,860 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:51:35,874 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:51:35,959 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:51:35,998 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:51:35,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:35 WrapperNode [2023-11-24 22:51:35,998 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:51:36,000 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:51:36,000 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:51:36,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:51:36,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:35" (1/1) ... [2023-11-24 22:51:36,035 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:35" (1/1) ... [2023-11-24 22:51:36,061 INFO L138 Inliner]: procedures = 126, calls = 28, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 135 [2023-11-24 22:51:36,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:51:36,063 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:51:36,063 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:51:36,063 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:51:36,073 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:35" (1/1) ... [2023-11-24 22:51:36,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:35" (1/1) ... [2023-11-24 22:51:36,078 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:35" (1/1) ... [2023-11-24 22:51:36,078 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:35" (1/1) ... [2023-11-24 22:51:36,086 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:35" (1/1) ... [2023-11-24 22:51:36,090 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:35" (1/1) ... [2023-11-24 22:51:36,092 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:35" (1/1) ... [2023-11-24 22:51:36,094 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:35" (1/1) ... [2023-11-24 22:51:36,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:51:36,099 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:51:36,099 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:51:36,099 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:51:36,100 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:35" (1/1) ... [2023-11-24 22:51:36,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:51:36,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c496a5c-b9c0-4465-8483-a219042e8019/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:51:36,136 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c496a5c-b9c0-4465-8483-a219042e8019/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:51:36,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c496a5c-b9c0-4465-8483-a219042e8019/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:51:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2023-11-24 22:51:36,189 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2023-11-24 22:51:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:51:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:51:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 22:51:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:51:36,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 22:51:36,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 22:51:36,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:51:36,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:51:36,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:51:36,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:51:36,353 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:51:36,355 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:51:36,393 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2023-11-24 22:51:36,650 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:51:36,726 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:51:36,726 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-24 22:51:36,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:36 BoogieIcfgContainer [2023-11-24 22:51:36,728 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:51:36,729 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:51:36,729 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:51:36,740 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:51:36,740 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:36" (1/1) ... [2023-11-24 22:51:36,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:51:36,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:36,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 51 states and 58 transitions. [2023-11-24 22:51:36,805 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2023-11-24 22:51:36,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 22:51:36,808 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:36,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:37,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:51:37,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:37,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 52 states and 60 transitions. [2023-11-24 22:51:37,153 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2023-11-24 22:51:37,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:51:37,155 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:37,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:37,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:51:37,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:37,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 51 states and 59 transitions. [2023-11-24 22:51:37,423 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2023-11-24 22:51:37,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:51:37,423 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:37,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:37,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:51:37,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:37,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 56 states and 67 transitions. [2023-11-24 22:51:37,912 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2023-11-24 22:51:37,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 22:51:37,913 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:37,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:38,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:51:38,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 62 states and 77 transitions. [2023-11-24 22:51:38,450 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 77 transitions. [2023-11-24 22:51:38,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 22:51:38,451 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:38,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:38,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:51:39,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:39,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 69 states and 88 transitions. [2023-11-24 22:51:39,204 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 88 transitions. [2023-11-24 22:51:39,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 22:51:39,209 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:39,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:39,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:39,456 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:51:39,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:39,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 48 states and 55 transitions. [2023-11-24 22:51:39,662 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2023-11-24 22:51:39,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 22:51:39,662 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:39,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:39,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:51:39,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:39,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 50 states and 60 transitions. [2023-11-24 22:51:39,839 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2023-11-24 22:51:39,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 22:51:39,840 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:39,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:39,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:51:39,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:39,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 51 states and 61 transitions. [2023-11-24 22:51:39,937 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 61 transitions. [2023-11-24 22:51:39,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 22:51:39,939 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:39,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:40,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:51:40,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:40,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 54 states and 67 transitions. [2023-11-24 22:51:40,346 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 67 transitions. [2023-11-24 22:51:40,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 22:51:40,347 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:40,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:40,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:51:40,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:40,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 57 states and 72 transitions. [2023-11-24 22:51:40,565 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2023-11-24 22:51:40,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 22:51:40,566 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:40,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:40,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:51:40,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:40,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 56 states and 71 transitions. [2023-11-24 22:51:40,713 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 71 transitions. [2023-11-24 22:51:40,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 22:51:40,714 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:40,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:40,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:51:41,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:41,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 61 states and 76 transitions. [2023-11-24 22:51:41,396 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2023-11-24 22:51:41,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 22:51:41,397 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:41,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:41,587 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:51:42,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:42,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 65 states and 84 transitions. [2023-11-24 22:51:42,251 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions. [2023-11-24 22:51:42,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 22:51:42,252 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:42,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:42,533 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:51:43,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:43,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 70 states and 94 transitions. [2023-11-24 22:51:43,451 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 94 transitions. [2023-11-24 22:51:43,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-24 22:51:43,451 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:43,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:43,699 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:51:44,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:44,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 74 states and 101 transitions. [2023-11-24 22:51:44,359 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 101 transitions. [2023-11-24 22:51:44,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 22:51:44,360 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:44,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:44,573 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:51:44,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:44,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 75 states and 101 transitions. [2023-11-24 22:51:44,901 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 101 transitions. [2023-11-24 22:51:44,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 22:51:44,902 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:44,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:45,156 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:51:46,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:46,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 80 states and 107 transitions. [2023-11-24 22:51:46,217 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 107 transitions. [2023-11-24 22:51:46,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 22:51:46,218 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:46,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:46,324 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-24 22:51:48,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:48,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 88 states and 116 transitions. [2023-11-24 22:51:48,220 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 116 transitions. [2023-11-24 22:51:48,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-24 22:51:48,221 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:48,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:48,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:48,627 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:51:50,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:50,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 94 states and 124 transitions. [2023-11-24 22:51:50,756 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 124 transitions. [2023-11-24 22:51:50,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-24 22:51:50,757 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:50,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:50,830 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-24 22:51:51,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:51,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 95 states and 125 transitions. [2023-11-24 22:51:51,172 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 125 transitions. [2023-11-24 22:51:51,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-24 22:51:51,172 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:51,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:51,573 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-24 22:51:52,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:52,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 98 states and 135 transitions. [2023-11-24 22:51:52,864 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 135 transitions. [2023-11-24 22:51:52,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-24 22:51:52,865 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:52,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:52,926 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-24 22:51:52,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:52,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 100 states and 137 transitions. [2023-11-24 22:51:52,965 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 137 transitions. [2023-11-24 22:51:52,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-24 22:51:52,966 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:52,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:53,043 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-24 22:51:53,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:53,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 103 states and 141 transitions. [2023-11-24 22:51:53,849 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 141 transitions. [2023-11-24 22:51:53,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:51:53,850 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:53,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:54,123 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-24 22:51:54,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:54,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 44 states and 51 transitions. [2023-11-24 22:51:54,561 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2023-11-24 22:51:54,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:51:54,562 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:54,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:54,632 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-24 22:51:55,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:55,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 37 states and 40 transitions. [2023-11-24 22:51:55,666 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2023-11-24 22:51:55,666 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 22:51:55,666 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 26 iterations. [2023-11-24 22:51:55,676 INFO L751 CodeCheckObserver]: All specifications hold 18 specifications checked. All of them hold [2023-11-24 22:51:55,935 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2023-11-24 22:51:55,944 INFO L560 CodeCheckObserver]: Invariant with dag size 14 [2023-11-24 22:51:55,946 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:51:55,947 INFO L560 CodeCheckObserver]: Invariant with dag size 7 [2023-11-24 22:51:55,949 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:51:55,949 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:51:55,949 INFO L560 CodeCheckObserver]: Invariant with dag size 20 [2023-11-24 22:51:55,953 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~len~0 [2023-11-24 22:51:55,954 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~i~0 [2023-11-24 22:51:55,954 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~i~0 [2023-11-24 22:51:55,954 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~len~0 [2023-11-24 22:51:55,954 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~i~0 [2023-11-24 22:51:55,956 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~len~0 [2023-11-24 22:51:55,957 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~i~0 [2023-11-24 22:51:55,957 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~len~0 [2023-11-24 22:51:55,958 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~i~0 [2023-11-24 22:51:55,958 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~len~0 [2023-11-24 22:51:55,958 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~i~0 [2023-11-24 22:51:55,959 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~i~0 [2023-11-24 22:51:55,959 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~len~0 [2023-11-24 22:51:55,959 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~i~0 [2023-11-24 22:51:55,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:51:55 ImpRootNode [2023-11-24 22:51:55,969 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:51:55,970 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:51:55,970 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:51:55,970 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:51:55,970 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:36" (3/4) ... [2023-11-24 22:51:55,972 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 22:51:55,976 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2023-11-24 22:51:55,985 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2023-11-24 22:51:55,985 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-24 22:51:55,986 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 22:51:55,986 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 22:51:56,123 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c496a5c-b9c0-4465-8483-a219042e8019/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 22:51:56,123 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c496a5c-b9c0-4465-8483-a219042e8019/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 22:51:56,124 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:51:56,124 INFO L158 Benchmark]: Toolchain (without parser) took 20718.07ms. Allocated memory was 146.8MB in the beginning and 247.5MB in the end (delta: 100.7MB). Free memory was 94.7MB in the beginning and 117.5MB in the end (delta: -22.7MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB. [2023-11-24 22:51:56,125 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 107.0MB. Free memory is still 60.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:51:56,125 INFO L158 Benchmark]: CACSL2BoogieTranslator took 590.81ms. Allocated memory is still 146.8MB. Free memory was 94.7MB in the beginning and 76.8MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 22:51:56,125 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.32ms. Allocated memory is still 146.8MB. Free memory was 76.8MB in the beginning and 74.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:51:56,126 INFO L158 Benchmark]: Boogie Preprocessor took 35.00ms. Allocated memory is still 146.8MB. Free memory was 74.7MB in the beginning and 72.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:51:56,126 INFO L158 Benchmark]: RCFGBuilder took 629.78ms. Allocated memory is still 146.8MB. Free memory was 72.7MB in the beginning and 101.9MB in the end (delta: -29.3MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2023-11-24 22:51:56,127 INFO L158 Benchmark]: CodeCheck took 19239.83ms. Allocated memory was 146.8MB in the beginning and 247.5MB in the end (delta: 100.7MB). Free memory was 101.9MB in the beginning and 123.8MB in the end (delta: -21.8MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. [2023-11-24 22:51:56,127 INFO L158 Benchmark]: Witness Printer took 154.15ms. Allocated memory is still 247.5MB. Free memory was 123.8MB in the beginning and 117.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-24 22:51:56,129 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 52 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 18.9s, OverallIterations: 26, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2188 SdHoareTripleChecker+Valid, 13.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1826 mSDsluCounter, 816 SdHoareTripleChecker+Invalid, 11.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 406 mSDsCounter, 1173 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5976 IncrementalHoareTripleChecker+Invalid, 7149 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1173 mSolverCounterUnsat, 410 mSDtfsCounter, 5976 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3436 GetRequests, 2910 SyntacticMatches, 254 SemanticMatches, 272 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36839 ImplicationChecksByTransitivity, 14.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 451 NumberOfCodeBlocks, 451 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 426 ConstructedInterpolants, 0 QuantifiedInterpolants, 1164 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 19 PerfectInterpolantSequences, 156/163 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 599]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 599]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 630]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 630]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 620]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 620]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 633]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 633]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 634]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 634]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 613]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 613]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 633]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 633]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: (1 <= i) - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: ((((2 <= len) && (1 <= i)) && ((len + i) <= 3)) || (((2 <= len) && (i < 1)) && (len <= 2))) - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: (((2 <= len) && (len <= 2)) && (len <= 2)) - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: null * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 107.0MB. Free memory is still 60.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 590.81ms. Allocated memory is still 146.8MB. Free memory was 94.7MB in the beginning and 76.8MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.32ms. Allocated memory is still 146.8MB. Free memory was 76.8MB in the beginning and 74.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.00ms. Allocated memory is still 146.8MB. Free memory was 74.7MB in the beginning and 72.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 629.78ms. Allocated memory is still 146.8MB. Free memory was 72.7MB in the beginning and 101.9MB in the end (delta: -29.3MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * CodeCheck took 19239.83ms. Allocated memory was 146.8MB in the beginning and 247.5MB in the end (delta: 100.7MB). Free memory was 101.9MB in the beginning and 123.8MB in the end (delta: -21.8MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. * Witness Printer took 154.15ms. Allocated memory is still 247.5MB. Free memory was 123.8MB in the beginning and 117.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~i~0 RESULT: Ultimate proved your program to be correct! [2023-11-24 22:51:56,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c496a5c-b9c0-4465-8483-a219042e8019/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE