./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664e3a76-93f1-4678-8675-aedd47bd484e/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664e3a76-93f1-4678-8675-aedd47bd484e/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664e3a76-93f1-4678-8675-aedd47bd484e/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664e3a76-93f1-4678-8675-aedd47bd484e/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664e3a76-93f1-4678-8675-aedd47bd484e/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664e3a76-93f1-4678-8675-aedd47bd484e/bin/ukojak-verify-CZk0znPC7b --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 3a80fea07b3dad363ac033c87feb8bfcf28a57d2e75bc95b67f90908b133efe1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:29:38,870 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:29:38,924 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664e3a76-93f1-4678-8675-aedd47bd484e/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 03:29:38,929 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 03:29:38,929 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 03:29:38,948 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:29:38,948 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:29:38,949 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:29:38,949 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:29:38,949 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:29:38,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:29:38,949 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:29:38,949 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 03:29:38,949 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 03:29:38,950 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 03:29:38,950 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:29:38,950 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:29:38,950 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:29:38,950 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:29:38,950 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 03:29:38,950 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:29:38,950 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:29:38,950 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:29:38,950 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:29:38,950 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:29:38,950 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:29:38,951 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:29:38,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:29:38,951 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:29:38,951 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:29:38,951 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:29:38,951 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 03:29:38,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 03:29:38,951 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_664e3a76-93f1-4678-8675-aedd47bd484e/bin/ukojak-verify-CZk0znPC7b 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 -> 3a80fea07b3dad363ac033c87feb8bfcf28a57d2e75bc95b67f90908b133efe1 [2024-12-06 03:29:39,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:29:39,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:29:39,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:29:39,196 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:29:39,197 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:29:39,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664e3a76-93f1-4678-8675-aedd47bd484e/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2024-12-06 03:29:41,858 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664e3a76-93f1-4678-8675-aedd47bd484e/bin/ukojak-verify-CZk0znPC7b/data/5b3859a6e/5b701a55f2f94f41a89bb7b946d69148/FLAG35b4e6a14 [2024-12-06 03:29:42,058 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:29:42,059 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664e3a76-93f1-4678-8675-aedd47bd484e/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2024-12-06 03:29:42,073 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664e3a76-93f1-4678-8675-aedd47bd484e/bin/ukojak-verify-CZk0znPC7b/data/5b3859a6e/5b701a55f2f94f41a89bb7b946d69148/FLAG35b4e6a14 [2024-12-06 03:29:42,409 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664e3a76-93f1-4678-8675-aedd47bd484e/bin/ukojak-verify-CZk0znPC7b/data/5b3859a6e/5b701a55f2f94f41a89bb7b946d69148 [2024-12-06 03:29:42,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:29:42,411 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:29:42,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:29:42,412 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:29:42,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:29:42,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:29:42" (1/1) ... [2024-12-06 03:29:42,417 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35f9e34b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:29:42, skipping insertion in model container [2024-12-06 03:29:42,417 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:29:42" (1/1) ... [2024-12-06 03:29:42,427 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:29:42,539 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_664e3a76-93f1-4678-8675-aedd47bd484e/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c[502,515] [2024-12-06 03:29:42,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:29:42,567 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:29:42,578 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_664e3a76-93f1-4678-8675-aedd47bd484e/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c[502,515] [2024-12-06 03:29:42,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:29:42,600 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:29:42,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:29:42 WrapperNode [2024-12-06 03:29:42,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:29:42,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:29:42,602 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:29:42,602 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:29:42,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:29:42" (1/1) ... [2024-12-06 03:29:42,615 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:29:42" (1/1) ... [2024-12-06 03:29:42,631 INFO L138 Inliner]: procedures = 19, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2024-12-06 03:29:42,631 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:29:42,632 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:29:42,632 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:29:42,632 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:29:42,639 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:29:42" (1/1) ... [2024-12-06 03:29:42,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:29:42" (1/1) ... [2024-12-06 03:29:42,640 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:29:42" (1/1) ... [2024-12-06 03:29:42,641 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:29:42" (1/1) ... [2024-12-06 03:29:42,645 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:29:42" (1/1) ... [2024-12-06 03:29:42,646 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:29:42" (1/1) ... [2024-12-06 03:29:42,648 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:29:42" (1/1) ... [2024-12-06 03:29:42,649 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:29:42" (1/1) ... [2024-12-06 03:29:42,650 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:29:42" (1/1) ... [2024-12-06 03:29:42,651 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:29:42,652 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:29:42,652 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:29:42,652 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:29:42,653 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:29:42" (1/1) ... [2024-12-06 03:29:42,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:29:42,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664e3a76-93f1-4678-8675-aedd47bd484e/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:29:42,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664e3a76-93f1-4678-8675-aedd47bd484e/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:29:42,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664e3a76-93f1-4678-8675-aedd47bd484e/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:29:42,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 03:29:42,710 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-06 03:29:42,710 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-06 03:29:42,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 03:29:42,710 INFO L130 BoogieDeclarations]: Found specification of procedure check [2024-12-06 03:29:42,710 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2024-12-06 03:29:42,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-06 03:29:42,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:29:42,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:29:42,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 03:29:42,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 03:29:42,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 03:29:42,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 03:29:42,778 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:29:42,780 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:29:42,914 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-12-06 03:29:42,914 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:29:42,951 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:29:42,952 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 03:29:42,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:29:42 BoogieIcfgContainer [2024-12-06 03:29:42,952 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:29:42,953 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:29:42,953 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:29:42,963 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:29:42,963 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:29:42" (1/1) ... [2024-12-06 03:29:42,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:29:43,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:29:43,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 29 states and 35 transitions. [2024-12-06 03:29:43,020 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2024-12-06 03:29:43,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-06 03:29:43,024 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:29:43,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:29:43,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:29:43,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 03:29:43,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:29:43,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 34 states and 44 transitions. [2024-12-06 03:29:43,542 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2024-12-06 03:29:43,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-06 03:29:43,543 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:29:43,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:29:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:29:43,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 03:29:43,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:29:43,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 34 states and 43 transitions. [2024-12-06 03:29:43,806 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2024-12-06 03:29:43,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-06 03:29:43,807 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:29:43,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:29:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:29:44,200 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-06 03:29:44,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:29:44,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 43 states and 59 transitions. [2024-12-06 03:29:44,687 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 59 transitions. [2024-12-06 03:29:44,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-06 03:29:44,688 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:29:44,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:29:44,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:29:44,915 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-06 03:29:45,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:29:45,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 50 states and 74 transitions. [2024-12-06 03:29:45,343 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 74 transitions. [2024-12-06 03:29:45,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-06 03:29:45,345 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:29:45,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:29:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:29:45,869 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-06 03:29:46,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:29:46,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 55 states and 83 transitions. [2024-12-06 03:29:46,389 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 83 transitions. [2024-12-06 03:29:46,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-12-06 03:29:46,390 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:29:46,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:29:46,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:29:46,546 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-06 03:29:46,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:29:46,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 32 states and 40 transitions. [2024-12-06 03:29:46,766 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2024-12-06 03:29:46,766 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 03:29:46,767 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2024-12-06 03:29:46,775 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-12-06 03:29:46,844 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 03:29:46,844 INFO L77 FloydHoareUtils]: At program point L50(line 50) the Hoare annotation is: true [2024-12-06 03:29:46,844 INFO L77 FloydHoareUtils]: At program point L50-1(line 50) the Hoare annotation is: true [2024-12-06 03:29:46,844 INFO L77 FloydHoareUtils]: At program point L47(line 47) the Hoare annotation is: (= ((as const (Array Int Int)) 0) (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) [2024-12-06 03:29:46,844 INFO L77 FloydHoareUtils]: At program point L47-1(line 47) the Hoare annotation is: true [2024-12-06 03:29:46,844 INFO L77 FloydHoareUtils]: At program point L45(line 45) the Hoare annotation is: true [2024-12-06 03:29:46,844 INFO L77 FloydHoareUtils]: At program point L45-1(line 45) the Hoare annotation is: true [2024-12-06 03:29:46,845 INFO L77 FloydHoareUtils]: At program point L42(line 42) the Hoare annotation is: true [2024-12-06 03:29:46,845 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 03:29:46,845 INFO L77 FloydHoareUtils]: At program point L42-1(line 42) the Hoare annotation is: true [2024-12-06 03:29:46,845 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 7 9) the Hoare annotation is: true [2024-12-06 03:29:46,845 INFO L77 FloydHoareUtils]: At program point assume_abort_if_notEXIT(lines 7 9) the Hoare annotation is: true [2024-12-06 03:29:46,845 INFO L77 FloydHoareUtils]: At program point L29(line 29) the Hoare annotation is: true [2024-12-06 03:29:46,845 INFO L77 FloydHoareUtils]: At program point L26-2(lines 26 27) the Hoare annotation is: true [2024-12-06 03:29:46,845 INFO L77 FloydHoareUtils]: At program point L21(line 21) the Hoare annotation is: true [2024-12-06 03:29:46,845 INFO L77 FloydHoareUtils]: At program point L20(line 20) the Hoare annotation is: true [2024-12-06 03:29:46,845 INFO L77 FloydHoareUtils]: At program point L20-1(line 20) the Hoare annotation is: true [2024-12-06 03:29:46,845 INFO L77 FloydHoareUtils]: At program point checkEXIT(lines 16 38) the Hoare annotation is: true [2024-12-06 03:29:46,845 INFO L77 FloydHoareUtils]: At program point L17(line 17) the Hoare annotation is: true [2024-12-06 03:29:46,845 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 16 38) the Hoare annotation is: true [2024-12-06 03:29:46,846 INFO L77 FloydHoareUtils]: At program point checkFINAL(lines 16 38) the Hoare annotation is: true [2024-12-06 03:29:46,846 INFO L77 FloydHoareUtils]: At program point L35(line 35) the Hoare annotation is: true [2024-12-06 03:29:46,846 INFO L77 FloydHoareUtils]: At program point L35-1(line 35) the Hoare annotation is: true [2024-12-06 03:29:46,846 INFO L77 FloydHoareUtils]: At program point L11(line 11) the Hoare annotation is: true [2024-12-06 03:29:46,846 INFO L77 FloydHoareUtils]: At program point L11-1(line 11) the Hoare annotation is: true [2024-12-06 03:29:46,846 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 10 12) the Hoare annotation is: true [2024-12-06 03:29:46,846 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 10 12) the Hoare annotation is: true [2024-12-06 03:29:46,846 INFO L77 FloydHoareUtils]: At program point L11-3(lines 10 12) the Hoare annotation is: true [2024-12-06 03:29:46,846 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) the Hoare annotation is: true [2024-12-06 03:29:46,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 03:29:46 ImpRootNode [2024-12-06 03:29:46,859 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 03:29:46,860 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 03:29:46,860 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 03:29:46,860 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 03:29:46,861 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:29:42" (3/4) ... [2024-12-06 03:29:46,863 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 03:29:46,866 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-06 03:29:46,866 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure check [2024-12-06 03:29:46,866 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-12-06 03:29:46,870 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2024-12-06 03:29:46,870 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-12-06 03:29:46,870 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-06 03:29:46,870 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-06 03:29:46,941 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664e3a76-93f1-4678-8675-aedd47bd484e/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 03:29:46,942 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664e3a76-93f1-4678-8675-aedd47bd484e/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 03:29:46,942 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 03:29:46,943 INFO L158 Benchmark]: Toolchain (without parser) took 4530.90ms. Allocated memory was 142.6MB in the beginning and 394.3MB in the end (delta: 251.7MB). Free memory was 119.2MB in the beginning and 287.4MB in the end (delta: -168.2MB). Peak memory consumption was 79.5MB. Max. memory is 16.1GB. [2024-12-06 03:29:46,943 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:29:46,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.91ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 107.6MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:29:46,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.37ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 106.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:29:46,944 INFO L158 Benchmark]: Boogie Preprocessor took 19.87ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 105.4MB in the end (delta: 923.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:29:46,944 INFO L158 Benchmark]: RCFGBuilder took 300.20ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 90.4MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 03:29:46,944 INFO L158 Benchmark]: CodeCheck took 3906.66ms. Allocated memory was 142.6MB in the beginning and 394.3MB in the end (delta: 251.7MB). Free memory was 90.4MB in the beginning and 291.6MB in the end (delta: -201.2MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. [2024-12-06 03:29:46,944 INFO L158 Benchmark]: Witness Printer took 81.68ms. Allocated memory is still 394.3MB. Free memory was 291.6MB in the beginning and 287.4MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:29:46,946 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 4 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 322 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 189 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 185 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 613 IncrementalHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 185 mSolverCounterUnsat, 183 mSDtfsCounter, 613 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1332 GetRequests, 1259 SyntacticMatches, 15 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1004 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 171 ConstructedInterpolants, 0 QuantifiedInterpolants, 779 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 66/87 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, ConComCheckerStatistics: No data available - PositiveResult [Line: 11]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.91ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 107.6MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.37ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 106.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.87ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 105.4MB in the end (delta: 923.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 300.20ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 90.4MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 3906.66ms. Allocated memory was 142.6MB in the beginning and 394.3MB in the end (delta: 251.7MB). Free memory was 90.4MB in the beginning and 291.6MB in the end (delta: -201.2MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. * Witness Printer took 81.68ms. Allocated memory is still 394.3MB. Free memory was 291.6MB in the beginning and 287.4MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-06 03:29:46,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_664e3a76-93f1-4678-8675-aedd47bd484e/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE