./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280d25d7-5cfa-459d-b417-2e03560190dc/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280d25d7-5cfa-459d-b417-2e03560190dc/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280d25d7-5cfa-459d-b417-2e03560190dc/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280d25d7-5cfa-459d-b417-2e03560190dc/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280d25d7-5cfa-459d-b417-2e03560190dc/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280d25d7-5cfa-459d-b417-2e03560190dc/bin/ukojak-verify-1t5iHCbJaC --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 27e059eb1633b1ab9c045484375455e2667fa3360a55d0bc53eccfa53fe7600f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:09:37,761 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:09:37,883 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280d25d7-5cfa-459d-b417-2e03560190dc/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-23 20:09:37,889 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:09:37,890 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:09:37,915 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:09:37,916 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:09:37,917 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:09:37,918 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:09:37,918 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:09:37,919 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:09:37,920 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:09:37,920 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:09:37,921 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:09:37,921 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:09:37,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:09:37,923 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:09:37,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:09:37,924 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:09:37,924 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:09:37,925 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:09:37,926 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:09:37,926 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:09:37,949 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:09:37,949 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:09:37,950 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:09:37,950 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:09:37,951 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:09:37,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:09:37,952 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:09:37,952 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:09:37,953 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:09:37,953 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:09:37,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:09:37,954 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:09:37,956 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_280d25d7-5cfa-459d-b417-2e03560190dc/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280d25d7-5cfa-459d-b417-2e03560190dc/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27e059eb1633b1ab9c045484375455e2667fa3360a55d0bc53eccfa53fe7600f [2023-11-23 20:09:38,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:09:38,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:09:38,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:09:38,330 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:09:38,331 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:09:38,333 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280d25d7-5cfa-459d-b417-2e03560190dc/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2023-11-23 20:09:41,431 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:09:41,813 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:09:41,814 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280d25d7-5cfa-459d-b417-2e03560190dc/sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2023-11-23 20:09:41,844 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280d25d7-5cfa-459d-b417-2e03560190dc/bin/ukojak-verify-1t5iHCbJaC/data/c9056b55d/d63a902f9a724106b350c2967267e1e6/FLAG535d272db [2023-11-23 20:09:41,868 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280d25d7-5cfa-459d-b417-2e03560190dc/bin/ukojak-verify-1t5iHCbJaC/data/c9056b55d/d63a902f9a724106b350c2967267e1e6 [2023-11-23 20:09:41,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:09:41,876 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:09:41,878 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:09:41,879 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:09:41,885 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:09:41,885 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:09:41" (1/1) ... [2023-11-23 20:09:41,887 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1324d8ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:41, skipping insertion in model container [2023-11-23 20:09:41,887 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:09:41" (1/1) ... [2023-11-23 20:09:41,989 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:09:42,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:09:42,501 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:09:42,583 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:09:42,627 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:09:42,636 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:09:42,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:42 WrapperNode [2023-11-23 20:09:42,637 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:09:42,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:09:42,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:09:42,639 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:09:42,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:42" (1/1) ... [2023-11-23 20:09:42,667 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:42" (1/1) ... [2023-11-23 20:09:42,688 INFO L138 Inliner]: procedures = 164, calls = 73, calls flagged for inlining = 21, calls inlined = 3, statements flattened = 52 [2023-11-23 20:09:42,689 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:09:42,690 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:09:42,690 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:09:42,690 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:09:42,700 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:42" (1/1) ... [2023-11-23 20:09:42,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:42" (1/1) ... [2023-11-23 20:09:42,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:42" (1/1) ... [2023-11-23 20:09:42,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:42" (1/1) ... [2023-11-23 20:09:42,720 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:42" (1/1) ... [2023-11-23 20:09:42,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:42" (1/1) ... [2023-11-23 20:09:42,725 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:42" (1/1) ... [2023-11-23 20:09:42,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:42" (1/1) ... [2023-11-23 20:09:42,729 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:09:42,730 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:09:42,730 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:09:42,730 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:09:42,731 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:42" (1/1) ... [2023-11-23 20:09:42,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:09:42,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280d25d7-5cfa-459d-b417-2e03560190dc/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:09:42,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280d25d7-5cfa-459d-b417-2e03560190dc/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:09:42,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280d25d7-5cfa-459d-b417-2e03560190dc/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:09:42,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:09:42,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:09:42,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:09:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:09:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:09:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:09:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:09:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:09:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:09:42,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:09:43,006 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:09:43,008 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:09:43,150 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:09:43,200 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:09:43,201 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 20:09:43,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:09:43 BoogieIcfgContainer [2023-11-23 20:09:43,203 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:09:43,204 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:09:43,204 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:09:43,214 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:09:43,214 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:09:43" (1/1) ... [2023-11-23 20:09:43,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:09:43,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:43,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 25 states and 29 transitions. [2023-11-23 20:09:43,282 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2023-11-23 20:09:43,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 20:09:43,285 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:43,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:43,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:43,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:09:43,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:43,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 30 states and 38 transitions. [2023-11-23 20:09:43,859 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2023-11-23 20:09:43,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 20:09:43,860 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:43,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:43,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:09:43,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:43,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 31 states and 39 transitions. [2023-11-23 20:09:43,965 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2023-11-23 20:09:43,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-23 20:09:43,966 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:43,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:44,135 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:09:44,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:44,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 32 states and 40 transitions. [2023-11-23 20:09:44,159 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2023-11-23 20:09:44,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-23 20:09:44,160 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:44,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:44,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:09:44,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:44,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 33 states and 41 transitions. [2023-11-23 20:09:44,233 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2023-11-23 20:09:44,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 20:09:44,234 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:44,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:44,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:09:44,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:44,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 34 states and 43 transitions. [2023-11-23 20:09:44,355 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2023-11-23 20:09:44,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 20:09:44,356 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:44,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:44,554 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:09:44,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:44,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 39 states and 52 transitions. [2023-11-23 20:09:44,688 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2023-11-23 20:09:44,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 20:09:44,689 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:44,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:44,781 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:09:44,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:44,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 40 states and 53 transitions. [2023-11-23 20:09:44,803 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 53 transitions. [2023-11-23 20:09:44,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-23 20:09:44,804 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:44,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:44,961 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:09:45,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:45,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 46 states and 62 transitions. [2023-11-23 20:09:45,198 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 62 transitions. [2023-11-23 20:09:45,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-23 20:09:45,199 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:45,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:45,279 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:09:45,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:45,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 48 states and 64 transitions. [2023-11-23 20:09:45,355 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 64 transitions. [2023-11-23 20:09:45,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-23 20:09:45,356 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:45,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:45,467 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-23 20:09:45,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:45,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 47 states and 63 transitions. [2023-11-23 20:09:45,503 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 63 transitions. [2023-11-23 20:09:45,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-23 20:09:45,505 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:45,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:45,662 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:09:45,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:45,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 50 states and 66 transitions. [2023-11-23 20:09:45,873 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 66 transitions. [2023-11-23 20:09:45,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 20:09:45,874 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:45,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:46,055 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:09:46,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:46,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 42 states and 53 transitions. [2023-11-23 20:09:46,102 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2023-11-23 20:09:46,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 20:09:46,107 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:46,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:46,378 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:09:46,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:46,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 48 states and 62 transitions. [2023-11-23 20:09:46,585 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 62 transitions. [2023-11-23 20:09:46,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 20:09:46,589 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:46,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:46,670 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 20:09:46,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:46,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 50 states and 65 transitions. [2023-11-23 20:09:46,766 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 65 transitions. [2023-11-23 20:09:46,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-23 20:09:46,767 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:46,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:46,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:46,943 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:09:47,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:47,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 55 states and 70 transitions. [2023-11-23 20:09:47,278 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2023-11-23 20:09:47,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-23 20:09:47,278 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:47,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:47,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:47,538 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 20:09:47,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:47,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 61 states and 79 transitions. [2023-11-23 20:09:47,786 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 79 transitions. [2023-11-23 20:09:47,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-23 20:09:47,787 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:47,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:47,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:48,048 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 20:09:48,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:48,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 66 states and 84 transitions. [2023-11-23 20:09:48,486 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2023-11-23 20:09:48,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-23 20:09:48,487 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:48,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:48,863 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-23 20:09:49,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:49,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 72 states and 93 transitions. [2023-11-23 20:09:49,216 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 93 transitions. [2023-11-23 20:09:49,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-23 20:09:49,217 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:49,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:49,545 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-23 20:09:50,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:50,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 77 states and 98 transitions. [2023-11-23 20:09:50,089 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 98 transitions. [2023-11-23 20:09:50,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-23 20:09:50,090 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:50,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:50,503 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-23 20:09:50,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:50,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 83 states and 107 transitions. [2023-11-23 20:09:50,892 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2023-11-23 20:09:50,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-23 20:09:50,893 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:50,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:51,338 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-23 20:09:51,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:51,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 88 states and 112 transitions. [2023-11-23 20:09:51,928 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 112 transitions. [2023-11-23 20:09:51,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-23 20:09:51,929 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:51,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:52,420 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-23 20:09:52,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:52,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 94 states and 121 transitions. [2023-11-23 20:09:52,878 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 121 transitions. [2023-11-23 20:09:52,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 20:09:52,879 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:52,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:52,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:53,426 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-23 20:09:54,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:54,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 99 states and 126 transitions. [2023-11-23 20:09:54,136 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 126 transitions. [2023-11-23 20:09:54,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-23 20:09:54,139 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:54,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:54,782 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-23 20:09:55,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:55,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 105 states and 135 transitions. [2023-11-23 20:09:55,265 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 135 transitions. [2023-11-23 20:09:55,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-23 20:09:55,266 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:55,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:55,904 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-23 20:09:56,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:56,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 110 states and 140 transitions. [2023-11-23 20:09:56,650 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 140 transitions. [2023-11-23 20:09:56,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-23 20:09:56,651 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:56,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:56,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:57,272 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-23 20:09:57,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:57,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 116 states and 149 transitions. [2023-11-23 20:09:57,844 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 149 transitions. [2023-11-23 20:09:57,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-23 20:09:57,845 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:57,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:58,472 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-23 20:09:59,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:59,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 121 states and 154 transitions. [2023-11-23 20:09:59,313 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 154 transitions. [2023-11-23 20:09:59,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-23 20:09:59,314 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:59,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:59,934 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 270 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-11-23 20:10:00,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:10:00,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 127 states and 163 transitions. [2023-11-23 20:10:00,456 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2023-11-23 20:10:00,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-23 20:10:00,457 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:10:00,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:10:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:10:01,204 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 0 proven. 252 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-11-23 20:10:02,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:10:02,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 132 states and 168 transitions. [2023-11-23 20:10:02,003 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 168 transitions. [2023-11-23 20:10:02,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-23 20:10:02,005 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:10:02,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:10:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:10:05,257 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 275 proven. 55 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-11-23 20:10:16,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:10:16,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 117 states and 148 transitions. [2023-11-23 20:10:16,046 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 148 transitions. [2023-11-23 20:10:16,047 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:10:16,047 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 31 iterations. [2023-11-23 20:10:16,058 INFO L751 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2023-11-23 20:10:16,397 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:10:16,401 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:10:16,401 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:10:16,401 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:10:16,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:10:16 ImpRootNode [2023-11-23 20:10:16,402 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:10:16,403 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:10:16,403 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:10:16,403 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:10:16,404 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:09:43" (3/4) ... [2023-11-23 20:10:16,406 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:10:16,410 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2023-11-23 20:10:16,415 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-23 20:10:16,416 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-23 20:10:16,416 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-23 20:10:16,528 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280d25d7-5cfa-459d-b417-2e03560190dc/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:10:16,529 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280d25d7-5cfa-459d-b417-2e03560190dc/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 20:10:16,529 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:10:16,530 INFO L158 Benchmark]: Toolchain (without parser) took 34653.53ms. Allocated memory was 176.2MB in the beginning and 461.4MB in the end (delta: 285.2MB). Free memory was 145.6MB in the beginning and 350.6MB in the end (delta: -205.1MB). Peak memory consumption was 81.4MB. Max. memory is 16.1GB. [2023-11-23 20:10:16,531 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 99.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:10:16,531 INFO L158 Benchmark]: CACSL2BoogieTranslator took 759.07ms. Allocated memory is still 176.2MB. Free memory was 145.3MB in the beginning and 126.0MB in the end (delta: 19.4MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2023-11-23 20:10:16,532 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.83ms. Allocated memory is still 176.2MB. Free memory was 126.0MB in the beginning and 123.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:10:16,532 INFO L158 Benchmark]: Boogie Preprocessor took 39.27ms. Allocated memory is still 176.2MB. Free memory was 123.9MB in the beginning and 122.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:10:16,533 INFO L158 Benchmark]: RCFGBuilder took 473.17ms. Allocated memory is still 176.2MB. Free memory was 122.4MB in the beginning and 132.6MB in the end (delta: -10.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:10:16,534 INFO L158 Benchmark]: CodeCheck took 33198.61ms. Allocated memory was 176.2MB in the beginning and 461.4MB in the end (delta: 285.2MB). Free memory was 132.6MB in the beginning and 355.9MB in the end (delta: -223.3MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. [2023-11-23 20:10:16,534 INFO L158 Benchmark]: Witness Printer took 126.35ms. Allocated memory is still 461.4MB. Free memory was 355.9MB in the beginning and 350.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:10:16,538 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, 25 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 32.8s, OverallIterations: 31, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2744 SdHoareTripleChecker+Valid, 12.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1981 mSDsluCounter, 2490 SdHoareTripleChecker+Invalid, 10.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1644 mSDsCounter, 2279 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6920 IncrementalHoareTripleChecker+Invalid, 9199 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2279 mSolverCounterUnsat, 846 mSDtfsCounter, 6920 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8998 GetRequests, 8178 SyntacticMatches, 512 SemanticMatches, 308 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41632 ImplicationChecksByTransitivity, 22.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 11.3s InterpolantComputationTime, 1310 NumberOfCodeBlocks, 1310 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 1280 ConstructedInterpolants, 0 QuantifiedInterpolants, 3124 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 7 PerfectInterpolantSequences, 1364/3333 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: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 774]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 774]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 774]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 774]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 767]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 774]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 760]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 760]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 99.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 759.07ms. Allocated memory is still 176.2MB. Free memory was 145.3MB in the beginning and 126.0MB in the end (delta: 19.4MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.83ms. Allocated memory is still 176.2MB. Free memory was 126.0MB in the beginning and 123.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.27ms. Allocated memory is still 176.2MB. Free memory was 123.9MB in the beginning and 122.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 473.17ms. Allocated memory is still 176.2MB. Free memory was 122.4MB in the beginning and 132.6MB in the end (delta: -10.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CodeCheck took 33198.61ms. Allocated memory was 176.2MB in the beginning and 461.4MB in the end (delta: 285.2MB). Free memory was 132.6MB in the beginning and 355.9MB in the end (delta: -223.3MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. * Witness Printer took 126.35ms. Allocated memory is still 461.4MB. Free memory was 355.9MB in the beginning and 350.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-23 20:10:16,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_280d25d7-5cfa-459d-b417-2e03560190dc/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE