./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/elimination_max.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_e1a1d8fe-a9b9-46b8-885c-13cbe8b2c2c4/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a1d8fe-a9b9-46b8-885c-13cbe8b2c2c4/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_e1a1d8fe-a9b9-46b8-885c-13cbe8b2c2c4/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a1d8fe-a9b9-46b8-885c-13cbe8b2c2c4/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a1d8fe-a9b9-46b8-885c-13cbe8b2c2c4/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_e1a1d8fe-a9b9-46b8-885c-13cbe8b2c2c4/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 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 00:59:20,793 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 00:59:20,851 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a1d8fe-a9b9-46b8-885c-13cbe8b2c2c4/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 00:59:20,856 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 00:59:20,856 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 00:59:20,876 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 00:59:20,877 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 00:59:20,877 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 00:59:20,878 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 00:59:20,878 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 00:59:20,878 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 00:59:20,878 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 00:59:20,878 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 00:59:20,878 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 00:59:20,878 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 00:59:20,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 00:59:20,879 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 00:59:20,879 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 00:59:20,879 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 00:59:20,879 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 00:59:20,879 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 00:59:20,879 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 00:59:20,879 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 00:59:20,879 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 00:59:20,879 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 00:59:20,879 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 00:59:20,879 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 00:59:20,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:59:20,880 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 00:59:20,880 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 00:59:20,880 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 00:59:20,880 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 00:59:20,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 00:59:20,880 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_e1a1d8fe-a9b9-46b8-885c-13cbe8b2c2c4/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 -> 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e [2024-12-06 00:59:21,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 00:59:21,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 00:59:21,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 00:59:21,123 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 00:59:21,123 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 00:59:21,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a1d8fe-a9b9-46b8-885c-13cbe8b2c2c4/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/verifythis/elimination_max.c [2024-12-06 00:59:23,808 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a1d8fe-a9b9-46b8-885c-13cbe8b2c2c4/bin/ukojak-verify-CZk0znPC7b/data/fbd76f7bd/04be97e520e14a5ba2892f4412bb05a6/FLAGb4da425d8 [2024-12-06 00:59:24,015 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 00:59:24,016 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a1d8fe-a9b9-46b8-885c-13cbe8b2c2c4/sv-benchmarks/c/verifythis/elimination_max.c [2024-12-06 00:59:24,022 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a1d8fe-a9b9-46b8-885c-13cbe8b2c2c4/bin/ukojak-verify-CZk0znPC7b/data/fbd76f7bd/04be97e520e14a5ba2892f4412bb05a6/FLAGb4da425d8 [2024-12-06 00:59:24,379 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a1d8fe-a9b9-46b8-885c-13cbe8b2c2c4/bin/ukojak-verify-CZk0znPC7b/data/fbd76f7bd/04be97e520e14a5ba2892f4412bb05a6 [2024-12-06 00:59:24,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 00:59:24,381 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 00:59:24,382 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 00:59:24,382 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 00:59:24,385 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 00:59:24,386 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:59:24" (1/1) ... [2024-12-06 00:59:24,386 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48358a4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:59:24, skipping insertion in model container [2024-12-06 00:59:24,386 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:59:24" (1/1) ... [2024-12-06 00:59:24,396 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 00:59:24,515 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_e1a1d8fe-a9b9-46b8-885c-13cbe8b2c2c4/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2024-12-06 00:59:24,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:59:24,540 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 00:59:24,548 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_e1a1d8fe-a9b9-46b8-885c-13cbe8b2c2c4/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2024-12-06 00:59:24,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:59:24,565 INFO L204 MainTranslator]: Completed translation [2024-12-06 00:59:24,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:59:24 WrapperNode [2024-12-06 00:59:24,566 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 00:59:24,567 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 00:59:24,567 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 00:59:24,567 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 00:59:24,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:59:24" (1/1) ... [2024-12-06 00:59:24,578 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:59:24" (1/1) ... [2024-12-06 00:59:24,590 INFO L138 Inliner]: procedures = 18, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2024-12-06 00:59:24,590 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 00:59:24,590 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 00:59:24,590 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 00:59:24,590 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 00:59:24,595 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:59:24" (1/1) ... [2024-12-06 00:59:24,595 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:59:24" (1/1) ... [2024-12-06 00:59:24,597 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:59:24" (1/1) ... [2024-12-06 00:59:24,597 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:59:24" (1/1) ... [2024-12-06 00:59:24,601 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:59:24" (1/1) ... [2024-12-06 00:59:24,602 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:59:24" (1/1) ... [2024-12-06 00:59:24,605 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:59:24" (1/1) ... [2024-12-06 00:59:24,606 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:59:24" (1/1) ... [2024-12-06 00:59:24,606 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:59:24" (1/1) ... [2024-12-06 00:59:24,608 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 00:59:24,609 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 00:59:24,609 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 00:59:24,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 00:59:24,610 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:59:24" (1/1) ... [2024-12-06 00:59:24,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:59:24,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a1d8fe-a9b9-46b8-885c-13cbe8b2c2c4/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 00:59:24,634 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a1d8fe-a9b9-46b8-885c-13cbe8b2c2c4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 00:59:24,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a1d8fe-a9b9-46b8-885c-13cbe8b2c2c4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 00:59:24,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 00:59:24,654 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-06 00:59:24,654 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-06 00:59:24,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 00:59:24,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-06 00:59:24,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 00:59:24,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 00:59:24,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 00:59:24,654 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 00:59:24,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 00:59:24,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 00:59:24,709 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 00:59:24,711 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 00:59:24,837 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-12-06 00:59:24,837 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 00:59:24,891 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 00:59:24,891 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-06 00:59:24,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:59:24 BoogieIcfgContainer [2024-12-06 00:59:24,891 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 00:59:24,892 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 00:59:24,892 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 00:59:24,902 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 00:59:24,902 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:59:24" (1/1) ... [2024-12-06 00:59:24,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 00:59:24,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:59:24,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2024-12-06 00:59:24,961 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2024-12-06 00:59:24,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 00:59:24,965 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:59:24,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:59:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:59:25,393 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 00:59:25,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:59:25,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 25 transitions. [2024-12-06 00:59:25,528 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-12-06 00:59:25,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-06 00:59:25,529 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:59:25,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:59:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:59:25,702 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 00:59:25,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:59:25,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 24 states and 30 transitions. [2024-12-06 00:59:25,912 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2024-12-06 00:59:25,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-06 00:59:25,912 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:59:25,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:59:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:59:26,115 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-06 00:59:27,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:59:27,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 33 states and 50 transitions. [2024-12-06 00:59:27,117 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 50 transitions. [2024-12-06 00:59:27,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-12-06 00:59:27,118 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:59:27,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:59:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:59:27,261 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-06 00:59:27,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:59:27,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 36 states and 58 transitions. [2024-12-06 00:59:27,693 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 58 transitions. [2024-12-06 00:59:27,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-12-06 00:59:27,694 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:59:27,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:59:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:59:27,835 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-06 00:59:28,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:59:28,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 28 states and 41 transitions. [2024-12-06 00:59:28,516 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2024-12-06 00:59:28,517 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 00:59:28,517 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2024-12-06 00:59:28,523 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-12-06 00:59:28,665 INFO L77 FloydHoareUtils]: At program point L35-2(lines 25 37) the Hoare annotation is: (= ((as const (Array Int Int)) 0) (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) [2024-12-06 00:59:28,666 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 00:59:28,666 INFO L77 FloydHoareUtils]: At program point L19(line 19) the Hoare annotation is: true [2024-12-06 00:59:28,667 INFO L77 FloydHoareUtils]: At program point L19-1(line 19) the Hoare annotation is: true [2024-12-06 00:59:28,668 INFO L77 FloydHoareUtils]: At program point L46(line 46) the Hoare annotation is: (not (and (not (= |ULTIMATE.start_main_~i~0#1| 0)) (not (= ((as const (Array Int Int)) 0) (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|))) (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_#t~mem15#1| 0) (= |ULTIMATE.start_main_#t~mem14#1| 0) (= |ULTIMATE.start_main_~x~0#1| 0))) [2024-12-06 00:59:28,668 INFO L77 FloydHoareUtils]: At program point L46-1(line 46) the Hoare annotation is: true [2024-12-06 00:59:28,668 INFO L77 FloydHoareUtils]: At program point L42(line 42) the Hoare annotation is: (= ((as const (Array Int Int)) 0) (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) [2024-12-06 00:59:28,668 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 00:59:28,668 INFO L77 FloydHoareUtils]: At program point L42-1(line 42) the Hoare annotation is: true [2024-12-06 00:59:28,668 INFO L77 FloydHoareUtils]: At program point L43(line 43) the Hoare annotation is: true [2024-12-06 00:59:28,668 INFO L77 FloydHoareUtils]: At program point L43-1(line 43) the Hoare annotation is: true [2024-12-06 00:59:28,668 INFO L77 FloydHoareUtils]: At program point L45-3(lines 45 47) the Hoare annotation is: true [2024-12-06 00:59:28,668 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 7 9) the Hoare annotation is: true [2024-12-06 00:59:28,668 INFO L77 FloydHoareUtils]: At program point assume_abort_if_notEXIT(lines 7 9) the Hoare annotation is: true [2024-12-06 00:59:28,668 INFO L77 FloydHoareUtils]: At program point L11(line 11) the Hoare annotation is: true [2024-12-06 00:59:28,668 INFO L77 FloydHoareUtils]: At program point L11-1(line 11) the Hoare annotation is: true [2024-12-06 00:59:28,668 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 10 12) the Hoare annotation is: true [2024-12-06 00:59:28,668 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 10 12) the Hoare annotation is: true [2024-12-06 00:59:28,669 INFO L77 FloydHoareUtils]: At program point L11-3(lines 10 12) the Hoare annotation is: true [2024-12-06 00:59:28,669 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) the Hoare annotation is: true [2024-12-06 00:59:28,673 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown expressions could not be backtranslated (possibly during translation to Boogie) [2024-12-06 00:59:28,674 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-12-06 00:59:28,674 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-12-06 00:59:28,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 12:59:28 ImpRootNode [2024-12-06 00:59:28,681 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 00:59:28,681 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 00:59:28,681 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 00:59:28,681 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 00:59:28,682 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:59:24" (3/4) ... [2024-12-06 00:59:28,684 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 00:59:28,687 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-06 00:59:28,687 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-12-06 00:59:28,690 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-12-06 00:59:28,690 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-12-06 00:59:28,690 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-06 00:59:28,690 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-06 00:59:28,749 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a1d8fe-a9b9-46b8-885c-13cbe8b2c2c4/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 00:59:28,750 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a1d8fe-a9b9-46b8-885c-13cbe8b2c2c4/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 00:59:28,750 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 00:59:28,751 INFO L158 Benchmark]: Toolchain (without parser) took 4369.21ms. Allocated memory is still 117.4MB. Free memory was 94.4MB in the beginning and 81.3MB in the end (delta: 13.1MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2024-12-06 00:59:28,751 INFO L158 Benchmark]: CDTParser took 0.30ms. 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 00:59:28,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.17ms. Allocated memory is still 117.4MB. Free memory was 94.2MB in the beginning and 82.9MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:59:28,751 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.01ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 81.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:59:28,752 INFO L158 Benchmark]: Boogie Preprocessor took 17.97ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.7MB in the end (delta: 846.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:59:28,752 INFO L158 Benchmark]: RCFGBuilder took 282.72ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 65.6MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 00:59:28,752 INFO L158 Benchmark]: CodeCheck took 3788.42ms. Allocated memory is still 117.4MB. Free memory was 65.6MB in the beginning and 86.3MB in the end (delta: -20.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:59:28,753 INFO L158 Benchmark]: Witness Printer took 68.68ms. Allocated memory is still 117.4MB. Free memory was 86.3MB in the beginning and 81.3MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:59:28,754 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 3 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 186 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 55 mSDsluCounter, 143 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 134 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 488 IncrementalHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 134 mSolverCounterUnsat, 117 mSDtfsCounter, 488 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 983 GetRequests, 898 SyntacticMatches, 11 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1601 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 469 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 51/58 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 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 184.17ms. Allocated memory is still 117.4MB. Free memory was 94.2MB in the beginning and 82.9MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.01ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 81.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.97ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.7MB in the end (delta: 846.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 282.72ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 65.6MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 3788.42ms. Allocated memory is still 117.4MB. Free memory was 65.6MB in the beginning and 86.3MB in the end (delta: -20.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 68.68ms. Allocated memory is still 117.4MB. Free memory was 86.3MB in the beginning and 81.3MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown expressions could not be backtranslated (possibly during translation to Boogie) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] RESULT: Ultimate proved your program to be correct! [2024-12-06 00:59:28,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a1d8fe-a9b9-46b8-885c-13cbe8b2c2c4/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