./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 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/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_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/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_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/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 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:57:12,506 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:57:12,563 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 20:57:12,568 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 20:57:12,568 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 20:57:12,606 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:57:12,606 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:57:12,607 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:57:12,607 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:57:12,607 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:57:12,607 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:57:12,607 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:57:12,607 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 20:57:12,608 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 20:57:12,608 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 20:57:12,608 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:57:12,608 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:57:12,608 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:57:12,608 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:57:12,608 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:57:12,608 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 20:57:12,608 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:57:12,609 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:57:12,609 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:57:12,609 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:57:12,609 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:57:12,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:57:12,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:57:12,609 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:57:12,609 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:57:12,610 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:57:12,610 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 20:57:12,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 20:57:12,610 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_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/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 -> 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e [2024-11-13 20:57:12,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:57:12,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:57:12,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:57:12,917 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:57:12,918 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:57:12,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/verifythis/elimination_max.c Unable to find full path for "g++" [2024-11-13 20:57:14,856 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:57:15,160 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:57:15,160 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/sv-benchmarks/c/verifythis/elimination_max.c [2024-11-13 20:57:15,170 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/data/f07b4ca8a/ea0b29979bd0494fae04b8249749fa1f/FLAGb28088171 [2024-11-13 20:57:15,449 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/data/f07b4ca8a/ea0b29979bd0494fae04b8249749fa1f [2024-11-13 20:57:15,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:57:15,456 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:57:15,457 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:57:15,460 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:57:15,464 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:57:15,465 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:57:15" (1/1) ... [2024-11-13 20:57:15,466 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17021780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:15, skipping insertion in model container [2024-11-13 20:57:15,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:57:15" (1/1) ... [2024-11-13 20:57:15,483 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:57:15,666 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_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2024-11-13 20:57:15,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:57:15,706 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:57:15,719 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_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2024-11-13 20:57:15,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:57:15,753 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:57:15,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:15 WrapperNode [2024-11-13 20:57:15,754 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:57:15,755 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:57:15,756 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:57:15,756 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:57:15,762 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:15" (1/1) ... [2024-11-13 20:57:15,774 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:15" (1/1) ... [2024-11-13 20:57:15,795 INFO L138 Inliner]: procedures = 18, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2024-11-13 20:57:15,797 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:57:15,798 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:57:15,798 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:57:15,798 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:57:15,806 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:15" (1/1) ... [2024-11-13 20:57:15,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:15" (1/1) ... [2024-11-13 20:57:15,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:15" (1/1) ... [2024-11-13 20:57:15,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:15" (1/1) ... [2024-11-13 20:57:15,818 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:15" (1/1) ... [2024-11-13 20:57:15,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:15" (1/1) ... [2024-11-13 20:57:15,829 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:15" (1/1) ... [2024-11-13 20:57:15,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:15" (1/1) ... [2024-11-13 20:57:15,831 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:57:15,831 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:57:15,835 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:57:15,835 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:57:15,836 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:15" (1/1) ... [2024-11-13 20:57:15,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:57:15,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:57:15,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:57:15,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:57:15,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:57:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 20:57:15,907 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 20:57:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 20:57:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 20:57:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:57:15,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:57:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 20:57:15,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 20:57:15,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 20:57:15,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 20:57:16,005 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:57:16,007 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:57:16,198 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-13 20:57:16,198 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:57:16,253 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:57:16,253 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 20:57:16,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:57:16 BoogieIcfgContainer [2024-11-13 20:57:16,254 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:57:16,255 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:57:16,255 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:57:16,266 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:57:16,266 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:57:16" (1/1) ... [2024-11-13 20:57:16,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:57:16,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:57:16,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2024-11-13 20:57:16,341 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2024-11-13 20:57:16,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 20:57:16,346 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:57:16,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:57:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:57:17,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 20:57:17,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:57:17,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 25 transitions. [2024-11-13 20:57:17,303 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-11-13 20:57:17,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 20:57:17,306 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:57:17,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:57:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:57:17,577 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 20:57:17,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:57:17,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 24 states and 30 transitions. [2024-11-13 20:57:17,873 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2024-11-13 20:57:17,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-13 20:57:17,875 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:57:17,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:57:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:57:18,199 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 20:57:19,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:57:19,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 33 states and 50 transitions. [2024-11-13 20:57:19,520 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 50 transitions. [2024-11-13 20:57:19,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-13 20:57:19,522 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:57:19,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:57:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:57:19,724 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-13 20:57:20,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:57:20,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 36 states and 58 transitions. [2024-11-13 20:57:20,303 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 58 transitions. [2024-11-13 20:57:20,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-13 20:57:20,305 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:57:20,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:57:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:57:20,483 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 20:57:21,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:57:21,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 28 states and 41 transitions. [2024-11-13 20:57:21,401 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2024-11-13 20:57:21,402 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 20:57:21,402 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2024-11-13 20:57:21,414 INFO L729 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-13 20:57:21,621 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|)) [2024-11-13 20:57:21,621 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-13 20:57:21,622 INFO L77 FloydHoareUtils]: At program point L19(line 19) the Hoare annotation is: true [2024-11-13 20:57:21,622 INFO L77 FloydHoareUtils]: At program point L19-1(line 19) the Hoare annotation is: true [2024-11-13 20:57:21,623 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))) [2024-11-13 20:57:21,623 INFO L77 FloydHoareUtils]: At program point L46-1(line 46) the Hoare annotation is: true [2024-11-13 20:57:21,623 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|)) [2024-11-13 20:57:21,623 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-13 20:57:21,623 INFO L77 FloydHoareUtils]: At program point L42-1(line 42) the Hoare annotation is: true [2024-11-13 20:57:21,623 INFO L77 FloydHoareUtils]: At program point L43(line 43) the Hoare annotation is: true [2024-11-13 20:57:21,623 INFO L77 FloydHoareUtils]: At program point L45-2(lines 45 47) the Hoare annotation is: true [2024-11-13 20:57:21,623 INFO L77 FloydHoareUtils]: At program point L43-1(line 43) the Hoare annotation is: true [2024-11-13 20:57:21,623 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 7 9) the Hoare annotation is: true [2024-11-13 20:57:21,623 INFO L77 FloydHoareUtils]: At program point assume_abort_if_notEXIT(lines 7 9) the Hoare annotation is: true [2024-11-13 20:57:21,623 INFO L77 FloydHoareUtils]: At program point L11(line 11) the Hoare annotation is: true [2024-11-13 20:57:21,623 INFO L77 FloydHoareUtils]: At program point L11-1(line 11) the Hoare annotation is: true [2024-11-13 20:57:21,623 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 10 12) the Hoare annotation is: true [2024-11-13 20:57:21,624 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 10 12) the Hoare annotation is: true [2024-11-13 20:57:21,624 INFO L77 FloydHoareUtils]: At program point L11-3(lines 10 12) the Hoare annotation is: true [2024-11-13 20:57:21,624 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) the Hoare annotation is: true [2024-11-13 20:57:21,635 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:402) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.lib.translation.DefaultTranslator.translateExpressionWithContext(DefaultTranslator.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionWithContext(ModelTranslationContainer.java:109) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionWithContext(ModelTranslationContainer.java:91) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.BacktranslationService.translateExpressionWithContext(BacktranslationService.java:111) at de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.FloydHoareUtils.createInvariantResults(FloydHoareUtils.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.createInvariantAndContractResults(CodeCheckObserver.java:542) at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:518) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-13 20:57:21,641 INFO L158 Benchmark]: Toolchain (without parser) took 6184.84ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 87.7MB in the end (delta: 5.4MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2024-11-13 20:57:21,641 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:57:21,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.56ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 81.6MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:57:21,641 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.85ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:57:21,645 INFO L158 Benchmark]: Boogie Preprocessor took 33.12ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.6MB in the end (delta: 958.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:57:21,646 INFO L158 Benchmark]: RCFGBuilder took 422.58ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 65.6MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:57:21,646 INFO L158 Benchmark]: CodeCheck took 5385.14ms. Allocated memory is still 117.4MB. Free memory was 65.3MB in the beginning and 87.7MB in the end (delta: -22.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:57:21,648 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: 5.1s, 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, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 55 mSDsluCounter, 143 SdHoareTripleChecker+Invalid, 1.1s 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, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s 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 - 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 - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:272) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.56ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 81.6MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.85ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.12ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.6MB in the end (delta: 958.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 422.58ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 65.6MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 5385.14ms. Allocated memory is still 117.4MB. Free memory was 65.3MB in the beginning and 87.7MB in the end (delta: -22.3MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-13 20:57:21,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/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_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/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 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:57:24,462 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:57:24,592 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-11-13 20:57:24,624 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:57:24,625 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:57:24,625 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:57:24,625 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:57:24,625 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:57:24,625 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:57:24,626 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:57:24,626 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 20:57:24,626 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 20:57:24,626 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:57:24,626 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:57:24,626 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:57:24,626 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:57:24,626 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 20:57:24,626 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 20:57:24,627 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:57:24,627 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 20:57:24,627 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 20:57:24,627 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:57:24,627 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:57:24,627 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:57:24,627 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:57:24,627 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:57:24,627 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 20:57:24,628 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 20:57:24,628 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:57:24,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:57:24,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:57:24,628 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:57:24,628 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:57:24,628 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 20:57:24,628 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 20:57:24,629 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 20:57:24,629 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_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/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 -> 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e [2024-11-13 20:57:24,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:57:24,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:57:24,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:57:24,967 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:57:24,968 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:57:24,969 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/verifythis/elimination_max.c Unable to find full path for "g++" [2024-11-13 20:57:26,920 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:57:27,238 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:57:27,240 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/sv-benchmarks/c/verifythis/elimination_max.c [2024-11-13 20:57:27,256 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/data/128e4e312/a92b5224a6554b839be0a8dad4183426/FLAGef70f6bb0 [2024-11-13 20:57:27,500 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/data/128e4e312/a92b5224a6554b839be0a8dad4183426 [2024-11-13 20:57:27,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:57:27,507 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:57:27,509 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:57:27,510 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:57:27,515 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:57:27,516 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:57:27" (1/1) ... [2024-11-13 20:57:27,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c407f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:27, skipping insertion in model container [2024-11-13 20:57:27,519 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:57:27" (1/1) ... [2024-11-13 20:57:27,537 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:57:27,724 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_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2024-11-13 20:57:27,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:57:27,777 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:57:27,791 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_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2024-11-13 20:57:27,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:57:27,825 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:57:27,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:27 WrapperNode [2024-11-13 20:57:27,826 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:57:27,827 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:57:27,828 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:57:27,828 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:57:27,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:27" (1/1) ... [2024-11-13 20:57:27,844 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:27" (1/1) ... [2024-11-13 20:57:27,868 INFO L138 Inliner]: procedures = 20, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2024-11-13 20:57:27,868 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:57:27,869 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:57:27,870 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:57:27,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:57:27,877 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:27" (1/1) ... [2024-11-13 20:57:27,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:27" (1/1) ... [2024-11-13 20:57:27,882 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:27" (1/1) ... [2024-11-13 20:57:27,882 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:27" (1/1) ... [2024-11-13 20:57:27,893 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:27" (1/1) ... [2024-11-13 20:57:27,904 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:27" (1/1) ... [2024-11-13 20:57:27,905 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:27" (1/1) ... [2024-11-13 20:57:27,909 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:27" (1/1) ... [2024-11-13 20:57:27,911 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:57:27,916 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:57:27,916 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:57:27,916 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:57:27,917 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:57:27" (1/1) ... [2024-11-13 20:57:27,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:57:27,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:57:27,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:57:27,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:57:27,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:57:27,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 20:57:27,993 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 20:57:27,993 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 20:57:27,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 20:57:27,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-13 20:57:27,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:57:27,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:57:27,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 20:57:27,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 20:57:27,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 20:57:28,103 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:57:28,106 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:57:28,377 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-13 20:57:28,377 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:57:28,485 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:57:28,486 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 20:57:28,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:57:28 BoogieIcfgContainer [2024-11-13 20:57:28,486 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:57:28,487 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:57:28,488 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:57:28,498 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:57:28,498 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:57:28" (1/1) ... [2024-11-13 20:57:28,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:57:28,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:57:28,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2024-11-13 20:57:28,568 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2024-11-13 20:57:28,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 20:57:28,574 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:57:28,575 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 20:57:28,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 20:57:28,579 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 20:57:28,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 20:57:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:57:28,733 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 20:57:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:57:28,782 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 20:57:28,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 20:57:28,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2024-11-13 20:57:38,940 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_1| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_1|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) is different from true [2024-11-13 20:57:39,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2024-11-13 20:57:39,173 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2024-11-13 20:57:39,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 20:57:49,345 WARN L851 $PredicateComparison]: unable to prove that (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_1| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_1|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32))))) is different from false [2024-11-13 20:57:49,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:57:49,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 26 transitions. [2024-11-13 20:57:49,566 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2024-11-13 20:57:49,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 20:57:49,567 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:57:49,568 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 20:57:49,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 20:57:49,570 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 20:57:49,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-13 20:57:49,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:57:49,690 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 20:57:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:57:49,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 20:57:49,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 20:57:49,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2024-11-13 20:57:59,769 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_2| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_2|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) is different from true [2024-11-13 20:58:09,825 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) is different from true [2024-11-13 20:58:09,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2024-11-13 20:58:09,984 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2024-11-13 20:58:09,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-13 20:58:20,010 WARN L851 $PredicateComparison]: unable to prove that (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_2| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_2|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32))))) is different from false [2024-11-13 20:58:40,065 WARN L286 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 20:58:50,076 WARN L851 $PredicateComparison]: unable to prove that (and (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_2| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_2|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))))) is different from false [2024-11-13 20:59:00,356 WARN L851 $PredicateComparison]: unable to prove that (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32))))) is different from false [2024-11-13 21:00:10,443 WARN L286 SmtUtils]: Spent 10.01s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 21:01:50,624 WARN L286 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 21:02:00,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 21:02:10,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 21:02:20,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 21:03:30,815 WARN L286 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 21:05:11,027 WARN L286 SmtUtils]: Spent 10.01s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 21:05:21,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 21:06:11,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 21:06:21,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 21:06:21,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:06:21,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 29 states and 48 transitions. [2024-11-13 21:06:21,225 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2024-11-13 21:06:21,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 21:06:21,228 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:06:21,228 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:06:21,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:06:21,235 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:06:21,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-13 21:06:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:06:21,342 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 21:06:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:06:21,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 21:06:21,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:06:21,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2024-11-13 21:06:31,404 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_4| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_4|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) is different from true [2024-11-13 21:06:41,443 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_5| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_5|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) is different from true [2024-11-13 21:06:41,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2024-11-13 21:06:41,532 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2024-11-13 21:06:41,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-13 21:06:51,547 WARN L851 $PredicateComparison]: unable to prove that (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_4| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_4|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32))))) is different from false [2024-11-13 21:07:11,589 WARN L851 $PredicateComparison]: unable to prove that (and (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_4| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_4|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))))) is different from false [2024-11-13 21:07:21,630 WARN L851 $PredicateComparison]: unable to prove that (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_5| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_5|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32))))) is different from false [2024-11-13 21:07:31,692 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_5| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_5|) .cse0)) (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3|) .cse0)))) is different from true [2024-11-13 21:07:41,704 WARN L851 $PredicateComparison]: unable to prove that (not (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_5| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_5|) .cse0)) (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3|) .cse0))))) is different from false [2024-11-13 21:07:41,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:07:41,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 29 states and 48 transitions. [2024-11-13 21:07:41,718 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2024-11-13 21:07:41,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 21:07:41,719 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:07:41,719 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:07:41,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:07:41,725 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:07:41,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-13 21:07:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:07:41,839 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 21:07:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:07:41,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 21:07:41,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:07:41,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2024-11-13 21:07:51,935 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_6| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_6|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) is different from true [2024-11-13 21:08:01,990 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_7| (_ BitVec 32))) (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_7|))) is different from true [2024-11-13 21:08:02,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2024-11-13 21:08:02,092 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2024-11-13 21:08:02,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-13 21:08:12,105 WARN L851 $PredicateComparison]: unable to prove that (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_6| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_6|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32))))) is different from false [2024-11-13 21:08:32,138 WARN L851 $PredicateComparison]: unable to prove that (and (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_6| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_6|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))))) is different from false [2024-11-13 21:08:42,174 WARN L851 $PredicateComparison]: unable to prove that (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_7| (_ BitVec 32))) (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_7|)))) is different from false [2024-11-13 21:08:52,223 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_7| (_ BitVec 32))) (= .cse0 (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_7|)))) (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3|) .cse0))))) is different from false [2024-11-13 21:09:02,236 WARN L873 $PredicateComparison]: unable to prove that (not (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_7| (_ BitVec 32))) (= .cse0 (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_7|)))) (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3|) .cse0)))))) is different from true [2024-11-13 21:09:02,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:09:02,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 29 states and 48 transitions. [2024-11-13 21:09:02,247 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2024-11-13 21:09:02,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 21:09:02,247 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:09:02,248 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:09:02,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:09:02,253 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:09:02,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-13 21:09:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:09:02,370 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 21:09:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:09:02,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 21:09:02,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:09:02,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2024-11-13 21:09:12,479 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_8| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_8|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) is different from true [2024-11-13 21:09:22,525 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_9| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_9|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) is different from true [2024-11-13 21:09:22,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2024-11-13 21:09:22,632 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2024-11-13 21:09:22,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-13 21:09:32,649 WARN L851 $PredicateComparison]: unable to prove that (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_8| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_8|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32))))) is different from false [2024-11-13 21:09:52,691 WARN L851 $PredicateComparison]: unable to prove that (and (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_8| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_8|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))))) is different from false [2024-11-13 21:10:02,776 WARN L851 $PredicateComparison]: unable to prove that (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_9| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_9|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32))))) is different from false [2024-11-13 21:10:12,844 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_5| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_5|) .cse0)) (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3|) .cse0)) (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_9| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_9|) .cse0)))) is different from true [2024-11-13 21:10:22,857 WARN L851 $PredicateComparison]: unable to prove that (not (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_5| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_5|) .cse0)) (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3|) .cse0)) (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_9| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_9|) .cse0))))) is different from false [2024-11-13 21:10:22,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:10:22,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 29 states and 48 transitions. [2024-11-13 21:10:22,888 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2024-11-13 21:10:22,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 21:10:22,891 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:10:22,892 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:10:22,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:10:22,897 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:10:22,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-13 21:10:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:10:23,009 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 21:10:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:10:23,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 21:10:23,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:10:23,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2024-11-13 21:10:33,084 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_10| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_10|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) is different from true [2024-11-13 21:10:43,130 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_11| (_ BitVec 32))) (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_11|))) is different from true [2024-11-13 21:10:43,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2024-11-13 21:10:43,217 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2024-11-13 21:10:43,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2024-11-13 21:10:53,229 WARN L851 $PredicateComparison]: unable to prove that (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_10| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_10|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32))))) is different from false [2024-11-13 21:11:13,268 WARN L851 $PredicateComparison]: unable to prove that (and (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_10| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_10|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32))))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from false [2024-11-13 21:11:23,309 WARN L851 $PredicateComparison]: unable to prove that (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_11| (_ BitVec 32))) (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_11|)))) is different from false [2024-11-13 21:11:33,350 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_7| (_ BitVec 32))) (= .cse0 (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_7|)))) (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3|) .cse0))) (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_11| (_ BitVec 32))) (= .cse0 (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_11|)))))) is different from false [2024-11-13 21:11:43,360 WARN L873 $PredicateComparison]: unable to prove that (not (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_7| (_ BitVec 32))) (= .cse0 (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_7|)))) (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3|) .cse0))) (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_11| (_ BitVec 32))) (= .cse0 (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_11|))))))) is different from true [2024-11-13 21:11:43,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:11:43,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 29 states and 48 transitions. [2024-11-13 21:11:43,368 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2024-11-13 21:11:43,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 21:11:43,369 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:11:43,369 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:11:43,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:11:43,373 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:11:43,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-13 21:11:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:11:43,466 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 21:11:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:11:43,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 21:11:43,493 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:11:43,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2024-11-13 21:11:53,522 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_12| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_12|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) is different from true [2024-11-13 21:12:03,566 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_13| (_ BitVec 32))) (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_13|))) is different from true [2024-11-13 21:12:03,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2024-11-13 21:12:03,635 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2024-11-13 21:12:03,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7eeaea3-051d-426d-acbe-70bb23d1f3a9/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-13 21:12:13,651 WARN L851 $PredicateComparison]: unable to prove that (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_12| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_12|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32))))) is different from false [2024-11-13 21:12:33,684 WARN L851 $PredicateComparison]: unable to prove that (and (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_12| (_ BitVec 32))) (= (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_12|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))))) is different from false [2024-11-13 21:12:43,723 WARN L851 $PredicateComparison]: unable to prove that (not (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_13| (_ BitVec 32))) (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_13|)))) is different from false