./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_i25_o25-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa355248-fae5-4ae7-b630-20d46dad34a0/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa355248-fae5-4ae7-b630-20d46dad34a0/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa355248-fae5-4ae7-b630-20d46dad34a0/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa355248-fae5-4ae7-b630-20d46dad34a0/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i25_o25-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa355248-fae5-4ae7-b630-20d46dad34a0/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa355248-fae5-4ae7-b630-20d46dad34a0/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 76955366716759eb9478710f6ef46e3de93d252b9c3177ff4beaca56ee5c75a7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:42:55,466 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:42:55,552 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa355248-fae5-4ae7-b630-20d46dad34a0/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 21:42:55,557 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:42:55,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:42:55,593 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:42:55,595 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:42:55,596 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:42:55,596 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:42:55,596 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:42:55,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:42:55,596 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:42:55,596 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 21:42:55,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:42:55,597 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 21:42:55,597 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:42:55,597 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:42:55,597 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:42:55,597 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:42:55,597 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:42:55,597 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 21:42:55,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:42:55,600 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:42:55,600 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:42:55,600 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:42:55,600 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:42:55,600 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:42:55,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:42:55,601 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:42:55,601 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:42:55,601 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:42:55,601 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:42:55,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:42:55,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_aa355248-fae5-4ae7-b630-20d46dad34a0/bin/ukojak-verify-EEHR8qb7sm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> 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 -> 76955366716759eb9478710f6ef46e3de93d252b9c3177ff4beaca56ee5c75a7 [2024-11-13 21:42:55,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:42:55,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:42:55,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:42:55,956 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:42:55,958 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:42:55,960 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa355248-fae5-4ae7-b630-20d46dad34a0/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/recursive-simple/id_i25_o25-2.c Unable to find full path for "g++" [2024-11-13 21:42:57,933 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:42:58,216 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:42:58,217 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa355248-fae5-4ae7-b630-20d46dad34a0/sv-benchmarks/c/recursive-simple/id_i25_o25-2.c [2024-11-13 21:42:58,224 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa355248-fae5-4ae7-b630-20d46dad34a0/bin/ukojak-verify-EEHR8qb7sm/data/6100288aa/b2189baac04d472780ac76d370263fac/FLAGd0a15a716 [2024-11-13 21:42:58,507 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa355248-fae5-4ae7-b630-20d46dad34a0/bin/ukojak-verify-EEHR8qb7sm/data/6100288aa/b2189baac04d472780ac76d370263fac [2024-11-13 21:42:58,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:42:58,512 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:42:58,513 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:42:58,513 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:42:58,518 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:42:58,519 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:42:58" (1/1) ... [2024-11-13 21:42:58,520 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a652050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:42:58, skipping insertion in model container [2024-11-13 21:42:58,520 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:42:58" (1/1) ... [2024-11-13 21:42:58,535 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:42:58,707 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa355248-fae5-4ae7-b630-20d46dad34a0/sv-benchmarks/c/recursive-simple/id_i25_o25-2.c[454,467] [2024-11-13 21:42:58,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:42:58,726 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:42:58,741 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa355248-fae5-4ae7-b630-20d46dad34a0/sv-benchmarks/c/recursive-simple/id_i25_o25-2.c[454,467] [2024-11-13 21:42:58,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:42:58,758 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:42:58,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:42:58 WrapperNode [2024-11-13 21:42:58,759 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:42:58,759 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:42:58,759 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:42:58,759 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:42:58,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:42:58" (1/1) ... [2024-11-13 21:42:58,773 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:42:58" (1/1) ... [2024-11-13 21:42:58,788 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2024-11-13 21:42:58,788 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:42:58,789 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:42:58,789 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:42:58,789 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:42:58,795 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:42:58" (1/1) ... [2024-11-13 21:42:58,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:42:58" (1/1) ... [2024-11-13 21:42:58,796 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:42:58" (1/1) ... [2024-11-13 21:42:58,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:42:58" (1/1) ... [2024-11-13 21:42:58,799 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:42:58" (1/1) ... [2024-11-13 21:42:58,800 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:42:58" (1/1) ... [2024-11-13 21:42:58,801 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:42:58" (1/1) ... [2024-11-13 21:42:58,802 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:42:58" (1/1) ... [2024-11-13 21:42:58,803 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:42:58,804 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:42:58,804 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:42:58,804 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:42:58,805 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:42:58" (1/1) ... [2024-11-13 21:42:58,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:42:58,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa355248-fae5-4ae7-b630-20d46dad34a0/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:42:58,836 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa355248-fae5-4ae7-b630-20d46dad34a0/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:42:58,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa355248-fae5-4ae7-b630-20d46dad34a0/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:42:58,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:42:58,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:42:58,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:42:58,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 21:42:58,871 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-11-13 21:42:58,871 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-11-13 21:42:58,934 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:42:58,936 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:42:59,051 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-13 21:42:59,052 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:42:59,082 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:42:59,082 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:42:59,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:42:59 BoogieIcfgContainer [2024-11-13 21:42:59,083 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:42:59,084 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:42:59,084 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:42:59,095 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:42:59,096 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:42:59" (1/1) ... [2024-11-13 21:42:59,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:42:59,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:42:59,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-11-13 21:42:59,174 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-11-13 21:42:59,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 21:42:59,179 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:42:59,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:42:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:42:59,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:42:59,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:42:59,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-13 21:42:59,580 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-13 21:42:59,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 21:42:59,581 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:42:59,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:42:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:42:59,834 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 21:43:00,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:00,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 23 states and 31 transitions. [2024-11-13 21:43:00,315 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2024-11-13 21:43:00,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 21:43:00,317 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:00,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:00,483 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-13 21:43:00,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:00,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 28 states and 42 transitions. [2024-11-13 21:43:00,944 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2024-11-13 21:43:00,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 21:43:00,945 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:00,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:01,147 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 21:43:01,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:01,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 33 states and 55 transitions. [2024-11-13 21:43:01,638 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2024-11-13 21:43:01,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 21:43:01,641 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:01,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:01,840 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 21:43:02,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:02,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 38 states and 70 transitions. [2024-11-13 21:43:02,345 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 70 transitions. [2024-11-13 21:43:02,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-13 21:43:02,346 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:02,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:02,574 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 21:43:03,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:03,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 43 states and 87 transitions. [2024-11-13 21:43:03,127 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 87 transitions. [2024-11-13 21:43:03,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-13 21:43:03,129 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:03,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:03,360 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-13 21:43:03,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:03,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 48 states and 106 transitions. [2024-11-13 21:43:03,966 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 106 transitions. [2024-11-13 21:43:03,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 21:43:03,970 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:03,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:03,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:04,226 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-11-13 21:43:04,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:04,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 53 states and 127 transitions. [2024-11-13 21:43:04,907 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 127 transitions. [2024-11-13 21:43:04,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-13 21:43:04,912 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:04,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:05,214 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-13 21:43:05,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:05,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 58 states and 150 transitions. [2024-11-13 21:43:05,920 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 150 transitions. [2024-11-13 21:43:05,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-13 21:43:05,922 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:05,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:06,230 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-13 21:43:06,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:06,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 63 states and 175 transitions. [2024-11-13 21:43:06,980 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 175 transitions. [2024-11-13 21:43:06,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 21:43:06,981 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:06,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:07,301 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-11-13 21:43:08,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:08,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 68 states and 202 transitions. [2024-11-13 21:43:08,126 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 202 transitions. [2024-11-13 21:43:08,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-13 21:43:08,131 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:08,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:08,489 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-13 21:43:09,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:09,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 73 states and 231 transitions. [2024-11-13 21:43:09,390 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 231 transitions. [2024-11-13 21:43:09,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-13 21:43:09,392 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:09,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:09,731 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-11-13 21:43:10,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:10,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 78 states and 262 transitions. [2024-11-13 21:43:10,640 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 262 transitions. [2024-11-13 21:43:10,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-13 21:43:10,643 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:10,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:11,071 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-11-13 21:43:12,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:12,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 83 states and 295 transitions. [2024-11-13 21:43:12,017 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 295 transitions. [2024-11-13 21:43:12,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-13 21:43:12,018 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:12,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:12,430 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-11-13 21:43:13,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:13,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 88 states and 330 transitions. [2024-11-13 21:43:13,412 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 330 transitions. [2024-11-13 21:43:13,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-13 21:43:13,413 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:13,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:13,801 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2024-11-13 21:43:14,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:14,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 93 states and 367 transitions. [2024-11-13 21:43:14,831 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 367 transitions. [2024-11-13 21:43:14,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 21:43:14,832 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:14,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:15,324 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-13 21:43:16,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:16,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 98 states and 406 transitions. [2024-11-13 21:43:16,300 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 406 transitions. [2024-11-13 21:43:16,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-13 21:43:16,302 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:16,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:16,770 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2024-11-13 21:43:17,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:17,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 103 states and 447 transitions. [2024-11-13 21:43:17,843 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 447 transitions. [2024-11-13 21:43:17,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-13 21:43:17,848 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:17,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:17,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:18,425 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2024-11-13 21:43:19,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:19,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 108 states and 490 transitions. [2024-11-13 21:43:19,872 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 490 transitions. [2024-11-13 21:43:19,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 21:43:19,874 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:19,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:20,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2024-11-13 21:43:21,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:21,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 113 states and 535 transitions. [2024-11-13 21:43:21,729 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 535 transitions. [2024-11-13 21:43:21,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-13 21:43:21,732 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:21,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:21,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:22,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 0 proven. 610 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2024-11-13 21:43:23,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:23,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 118 states and 582 transitions. [2024-11-13 21:43:23,777 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 582 transitions. [2024-11-13 21:43:23,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-13 21:43:23,781 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:23,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:24,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2024-11-13 21:43:25,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:25,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 123 states and 631 transitions. [2024-11-13 21:43:25,876 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 631 transitions. [2024-11-13 21:43:25,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-13 21:43:25,879 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:25,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:26,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2024-11-13 21:43:27,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:27,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 128 states and 682 transitions. [2024-11-13 21:43:27,857 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 682 transitions. [2024-11-13 21:43:27,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-13 21:43:27,860 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:27,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:28,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 0 proven. 805 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2024-11-13 21:43:30,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:30,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 133 states and 735 transitions. [2024-11-13 21:43:30,074 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 735 transitions. [2024-11-13 21:43:30,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-13 21:43:30,077 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:30,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:43:30,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 0 proven. 876 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2024-11-13 21:43:32,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:43:32,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 138 states and 790 transitions. [2024-11-13 21:43:32,287 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 790 transitions. [2024-11-13 21:43:32,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-13 21:43:32,289 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:43:32,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:43:32,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:43:32,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:43:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:43:32,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:43:32,559 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:43:32,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:43:32,692 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 26 iterations. [2024-11-13 21:43:32,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:43:32 ImpRootNode [2024-11-13 21:43:32,786 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:43:32,787 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:43:32,787 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:43:32,787 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:43:32,788 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:42:59" (3/4) ... [2024-11-13 21:43:32,789 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 21:43:32,871 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa355248-fae5-4ae7-b630-20d46dad34a0/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 21:43:32,871 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:43:32,872 INFO L158 Benchmark]: Toolchain (without parser) took 34360.11ms. Allocated memory was 117.4MB in the beginning and 444.6MB in the end (delta: 327.2MB). Free memory was 93.0MB in the beginning and 299.0MB in the end (delta: -206.0MB). Peak memory consumption was 116.6MB. Max. memory is 16.1GB. [2024-11-13 21:43:32,872 INFO L158 Benchmark]: CDTParser took 1.47ms. Allocated memory is still 117.4MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:43:32,873 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.78ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 82.5MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:43:32,873 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.79ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 81.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:43:32,873 INFO L158 Benchmark]: Boogie Preprocessor took 14.40ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 80.9MB in the end (delta: 568.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:43:32,874 INFO L158 Benchmark]: RCFGBuilder took 279.31ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 71.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:43:32,874 INFO L158 Benchmark]: CodeCheck took 33702.39ms. Allocated memory was 117.4MB in the beginning and 444.6MB in the end (delta: 327.2MB). Free memory was 71.7MB in the beginning and 302.8MB in the end (delta: -231.2MB). Peak memory consumption was 99.8MB. Max. memory is 16.1GB. [2024-11-13 21:43:32,874 INFO L158 Benchmark]: Witness Printer took 83.81ms. Allocated memory is still 444.6MB. Free memory was 302.8MB in the beginning and 299.0MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:43:32,877 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, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 33.6s, OverallIterations: 26, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3145 SdHoareTripleChecker+Valid, 43.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2474 mSDsluCounter, 2967 SdHoareTripleChecker+Invalid, 36.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2450 mSDsCounter, 2552 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29331 IncrementalHoareTripleChecker+Invalid, 31883 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2552 mSolverCounterUnsat, 517 mSDtfsCounter, 29331 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52144 GetRequests, 50374 SyntacticMatches, 1472 SemanticMatches, 298 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35034 ImplicationChecksByTransitivity, 18.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 9.2s InterpolantComputationTime, 2184 NumberOfCodeBlocks, 2184 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2000 ConstructedInterpolants, 0 QuantifiedInterpolants, 5200 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 1 PerfectInterpolantSequences, 7500/15000 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 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] int input = 25; VAL [input=25] [L13] CALL, EXPR id(input) VAL [\old(x)=25] [L7] COND FALSE !(x==0) VAL [\old(x)=25, x=25] [L8] CALL, EXPR id(x-1) VAL [\old(x)=24] [L7] COND FALSE !(x==0) VAL [\old(x)=24, x=24] [L8] CALL, EXPR id(x-1) VAL [\old(x)=23] [L7] COND FALSE !(x==0) VAL [\old(x)=23, x=23] [L8] CALL, EXPR id(x-1) VAL [\old(x)=22] [L7] COND FALSE !(x==0) VAL [\old(x)=22, x=22] [L8] CALL, EXPR id(x-1) VAL [\old(x)=21] [L7] COND FALSE !(x==0) VAL [\old(x)=21, x=21] [L8] CALL, EXPR id(x-1) VAL [\old(x)=20] [L7] COND FALSE !(x==0) VAL [\old(x)=20, x=20] [L8] CALL, EXPR id(x-1) VAL [\old(x)=19] [L7] COND FALSE !(x==0) VAL [\old(x)=19, x=19] [L8] CALL, EXPR id(x-1) VAL [\old(x)=18] [L7] COND FALSE !(x==0) VAL [\old(x)=18, x=18] [L8] CALL, EXPR id(x-1) VAL [\old(x)=17] [L7] COND FALSE !(x==0) VAL [\old(x)=17, x=17] [L8] CALL, EXPR id(x-1) VAL [\old(x)=16] [L7] COND FALSE !(x==0) VAL [\old(x)=16, x=16] [L8] CALL, EXPR id(x-1) VAL [\old(x)=15] [L7] COND FALSE !(x==0) VAL [\old(x)=15, x=15] [L8] CALL, EXPR id(x-1) VAL [\old(x)=14] [L7] COND FALSE !(x==0) VAL [\old(x)=14, x=14] [L8] CALL, EXPR id(x-1) VAL [\old(x)=13] [L7] COND FALSE !(x==0) VAL [\old(x)=13, x=13] [L8] CALL, EXPR id(x-1) VAL [\old(x)=12] [L7] COND FALSE !(x==0) VAL [\old(x)=12, x=12] [L8] CALL, EXPR id(x-1) VAL [\old(x)=11] [L7] COND FALSE !(x==0) VAL [\old(x)=11, x=11] [L8] CALL, EXPR id(x-1) VAL [\old(x)=10] [L7] COND FALSE !(x==0) VAL [\old(x)=10, x=10] [L8] CALL, EXPR id(x-1) VAL [\old(x)=9] [L7] COND FALSE !(x==0) VAL [\old(x)=9, x=9] [L8] CALL, EXPR id(x-1) VAL [\old(x)=8] [L7] COND FALSE !(x==0) VAL [\old(x)=8, x=8] [L8] CALL, EXPR id(x-1) VAL [\old(x)=7] [L7] COND FALSE !(x==0) VAL [\old(x)=7, x=7] [L8] CALL, EXPR id(x-1) VAL [\old(x)=6] [L7] COND FALSE !(x==0) VAL [\old(x)=6, x=6] [L8] CALL, EXPR id(x-1) VAL [\old(x)=5] [L7] COND FALSE !(x==0) VAL [\old(x)=5, x=5] [L8] CALL, EXPR id(x-1) VAL [\old(x)=4] [L7] COND FALSE !(x==0) VAL [\old(x)=4, x=4] [L8] CALL, EXPR id(x-1) VAL [\old(x)=3] [L7] COND FALSE !(x==0) VAL [\old(x)=3, x=3] [L8] CALL, EXPR id(x-1) VAL [\old(x)=2] [L7] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L8] CALL, EXPR id(x-1) VAL [\old(x)=1] [L7] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L8] CALL, EXPR id(x-1) VAL [\old(x)=0] [L7] COND TRUE x==0 [L7] return 0; VAL [\old(x)=0, \result=0] [L8] RET, EXPR id(x-1) VAL [\old(x)=1, x=1] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=2, x=2] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=3, x=3] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=4, x=4] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=5, x=5] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=6, x=6] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=7, x=7] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=8, x=8] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=9, x=9] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=10, x=10] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=11, x=11] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=12, x=12] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=13, x=13] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=14, x=14] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=15, x=15] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=16, x=16] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=17, x=17] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=18, x=18] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=19, x=19] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=20, x=20] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=21, x=21] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=22, x=22] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=23, x=23] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=24, x=24] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=25, x=25] [L8] return id(x-1) + 1; [L13] RET, EXPR id(input) VAL [input=25] [L13] int result = id(input); [L14] COND TRUE result == 25 VAL [input=25] [L15] reach_error() VAL [input=25] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.47ms. Allocated memory is still 117.4MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.78ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 82.5MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.79ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 81.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.40ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 80.9MB in the end (delta: 568.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 279.31ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 71.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 33702.39ms. Allocated memory was 117.4MB in the beginning and 444.6MB in the end (delta: 327.2MB). Free memory was 71.7MB in the beginning and 302.8MB in the end (delta: -231.2MB). Peak memory consumption was 99.8MB. Max. memory is 16.1GB. * Witness Printer took 83.81ms. Allocated memory is still 444.6MB. Free memory was 302.8MB in the beginning and 299.0MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 21:43:32,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa355248-fae5-4ae7-b630-20d46dad34a0/bin/ukojak-verify-EEHR8qb7sm/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE