./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_4+newton_2_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_2_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk --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 8402c5691f7146360213fdb1e8b03143db0d7add581e1f213f9dfbebb48edc07 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:26:15,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:26:15,906 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-09 00:26:15,913 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:26:15,916 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:26:15,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:26:15,957 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:26:15,958 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:26:15,959 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:26:15,959 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:26:15,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:26:15,961 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:26:15,961 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:26:15,961 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:26:15,962 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:26:15,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:26:15,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:26:15,965 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:26:15,965 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:26:15,965 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:26:15,966 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:26:15,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:26:15,968 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:26:15,971 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:26:15,972 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:26:15,972 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:26:15,973 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:26:15,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:26:15,973 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:26:15,973 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:26:15,974 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:26:15,974 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:26:15,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:26:15,974 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8402c5691f7146360213fdb1e8b03143db0d7add581e1f213f9dfbebb48edc07 [2024-11-09 00:26:16,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:26:16,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:26:16,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:26:16,266 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:26:16,267 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:26:16,268 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/combinations/gcd_4+newton_2_5.i Unable to find full path for "g++" [2024-11-09 00:26:18,354 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:26:18,576 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:26:18,578 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/sv-benchmarks/c/combinations/gcd_4+newton_2_5.i [2024-11-09 00:26:18,589 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/data/ce4d7a53c/09146ec0ef3b401394f896f5393098aa/FLAG955fe06de [2024-11-09 00:26:18,609 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/data/ce4d7a53c/09146ec0ef3b401394f896f5393098aa [2024-11-09 00:26:18,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:26:18,613 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:26:18,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:26:18,615 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:26:18,620 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:26:18,621 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:18,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@794ce0a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18, skipping insertion in model container [2024-11-09 00:26:18,626 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:18,658 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:26:18,868 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_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/sv-benchmarks/c/combinations/gcd_4+newton_2_5.i[1224,1237] [2024-11-09 00:26:18,899 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_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/sv-benchmarks/c/combinations/gcd_4+newton_2_5.i[2827,2840] [2024-11-09 00:26:18,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:26:18,910 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:26:18,924 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_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/sv-benchmarks/c/combinations/gcd_4+newton_2_5.i[1224,1237] [2024-11-09 00:26:18,935 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_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/sv-benchmarks/c/combinations/gcd_4+newton_2_5.i[2827,2840] [2024-11-09 00:26:18,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:26:18,955 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:26:18,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18 WrapperNode [2024-11-09 00:26:18,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:26:18,957 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:26:18,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:26:18,957 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:26:18,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:18,973 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:18,994 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 78 [2024-11-09 00:26:18,995 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:26:18,996 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:26:18,996 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:26:18,996 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:26:19,005 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:19,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:19,008 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:19,008 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:19,014 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:19,017 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:19,018 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:19,019 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:19,021 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:26:19,022 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:26:19,023 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:26:19,023 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:26:19,028 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:19,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:26:19,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:26:19,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:26:19,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:26:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:26:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-09 00:26:19,085 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-09 00:26:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-09 00:26:19,085 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-09 00:26:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:26:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:26:19,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:26:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 00:26:19,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 00:26:19,149 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:26:19,151 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:26:19,361 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-09 00:26:19,361 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:26:19,458 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:26:19,459 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:26:19,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:26:19 BoogieIcfgContainer [2024-11-09 00:26:19,460 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:26:19,461 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:26:19,462 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:26:19,472 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:26:19,472 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:26:19" (1/1) ... [2024-11-09 00:26:19,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:26:19,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:19,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 33 states and 42 transitions. [2024-11-09 00:26:19,534 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2024-11-09 00:26:19,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:26:19,538 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:19,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:26:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:19,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:26:20,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:20,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 33 states and 40 transitions. [2024-11-09 00:26:20,012 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2024-11-09 00:26:20,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 00:26:20,012 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:20,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:26:20,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:20,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:26:20,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:20,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 34 states and 42 transitions. [2024-11-09 00:26:20,311 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2024-11-09 00:26:20,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 00:26:20,312 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:20,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:26:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:20,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:26:20,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:20,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 34 states and 41 transitions. [2024-11-09 00:26:20,401 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2024-11-09 00:26:20,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 00:26:20,402 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:20,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:26:20,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:20,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:26:20,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:20,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 37 states and 46 transitions. [2024-11-09 00:26:20,907 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2024-11-09 00:26:20,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 00:26:20,908 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:20,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:26:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:21,161 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:26:21,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:21,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 42 states and 57 transitions. [2024-11-09 00:26:21,718 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 57 transitions. [2024-11-09 00:26:21,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 00:26:21,719 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:21,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:26:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:26:21,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:26:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:26:21,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:26:21,808 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:26:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:26:21,845 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-11-09 00:26:21,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:26:21 ImpRootNode [2024-11-09 00:26:21,888 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:26:21,889 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:26:21,889 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:26:21,889 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:26:21,890 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:26:19" (3/4) ... [2024-11-09 00:26:21,893 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:26:21,894 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:26:21,897 INFO L158 Benchmark]: Toolchain (without parser) took 3283.24ms. Allocated memory was 184.5MB in the beginning and 226.5MB in the end (delta: 41.9MB). Free memory was 143.8MB in the beginning and 164.3MB in the end (delta: -20.4MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2024-11-09 00:26:21,898 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 102.8MB. Free memory is still 43.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:26:21,899 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.37ms. Allocated memory is still 184.5MB. Free memory was 143.8MB in the beginning and 130.2MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 00:26:21,900 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.17ms. Allocated memory is still 184.5MB. Free memory was 130.2MB in the beginning and 128.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:26:21,902 INFO L158 Benchmark]: Boogie Preprocessor took 26.09ms. Allocated memory is still 184.5MB. Free memory was 128.1MB in the beginning and 127.1MB in the end (delta: 997.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:26:21,902 INFO L158 Benchmark]: RCFGBuilder took 438.25ms. Allocated memory is still 184.5MB. Free memory was 127.1MB in the beginning and 109.3MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 00:26:21,903 INFO L158 Benchmark]: CodeCheck took 2426.43ms. Allocated memory was 184.5MB in the beginning and 226.5MB in the end (delta: 41.9MB). Free memory was 109.3MB in the beginning and 165.2MB in the end (delta: -55.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:26:21,904 INFO L158 Benchmark]: Witness Printer took 7.17ms. Allocated memory is still 226.5MB. Free memory was 165.2MB in the beginning and 164.3MB in the end (delta: 910.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:26:21,908 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 4 procedures, 33 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 152 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 196 IncrementalHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 54 mSDtfsCounter, 196 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 428 GetRequests, 389 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 167 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 0/5 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 - UnprovableResult [Line: 109]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 98, overapproximation of someBinaryDOUBLEComparisonOperation at line 108, overapproximation of someBinaryArithmeticFLOAToperation at line 102. Possible FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L82] COND FALSE !(!cond) [L98] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L100] CALL, EXPR f(IN) VAL [\old(x)=2] [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L100] RET, EXPR f(IN) VAL [IN=2] [L100] CALL, EXPR fp(IN) VAL [\old(x)=2] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L100] RET, EXPR fp(IN) VAL [IN=2] [L100] float x = IN - f(IN)/fp(IN); [L102] CALL, EXPR f(x) VAL [\old(x)=3] [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L102] RET, EXPR f(x) VAL [IN=2, x=3] [L102] CALL, EXPR fp(x) VAL [\old(x)=3] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L102] RET, EXPR fp(x) VAL [IN=2, x=3] [L102] x = x - f(x)/fp(x) [L108] COND TRUE !(x < 0.1) VAL [IN=2] [L109] reach_error() VAL [IN=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 102.8MB. Free memory is still 43.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.37ms. Allocated memory is still 184.5MB. Free memory was 143.8MB in the beginning and 130.2MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.17ms. Allocated memory is still 184.5MB. Free memory was 130.2MB in the beginning and 128.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.09ms. Allocated memory is still 184.5MB. Free memory was 128.1MB in the beginning and 127.1MB in the end (delta: 997.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 438.25ms. Allocated memory is still 184.5MB. Free memory was 127.1MB in the beginning and 109.3MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 2426.43ms. Allocated memory was 184.5MB in the beginning and 226.5MB in the end (delta: 41.9MB). Free memory was 109.3MB in the beginning and 165.2MB in the end (delta: -55.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.17ms. Allocated memory is still 226.5MB. Free memory was 165.2MB in the beginning and 164.3MB in the end (delta: 910.3kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 00:26:21,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_2_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk --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 8402c5691f7146360213fdb1e8b03143db0d7add581e1f213f9dfbebb48edc07 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:26:24,415 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:26:24,496 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-11-09 00:26:24,531 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:26:24,532 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:26:24,533 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:26:24,534 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:26:24,534 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:26:24,535 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:26:24,535 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:26:24,536 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:26:24,536 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:26:24,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:26:24,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:26:24,538 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:26:24,538 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:26:24,539 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 00:26:24,539 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 00:26:24,540 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:26:24,540 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 00:26:24,540 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:26:24,541 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:26:24,541 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:26:24,542 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:26:24,542 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:26:24,543 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:26:24,543 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:26:24,544 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-09 00:26:24,544 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:26:24,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:26:24,545 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:26:24,546 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:26:24,546 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:26:24,546 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 00:26:24,547 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:26:24,547 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-09 00:26:24,547 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8402c5691f7146360213fdb1e8b03143db0d7add581e1f213f9dfbebb48edc07 [2024-11-09 00:26:24,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:26:24,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:26:24,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:26:24,981 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:26:24,982 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:26:24,983 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/combinations/gcd_4+newton_2_5.i Unable to find full path for "g++" [2024-11-09 00:26:27,028 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:26:27,266 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:26:27,267 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/sv-benchmarks/c/combinations/gcd_4+newton_2_5.i [2024-11-09 00:26:27,280 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/data/834cc39bd/6eeb2d8ad9ee4b358bfe4a07177b6eff/FLAG671ab8fcb [2024-11-09 00:26:27,589 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/data/834cc39bd/6eeb2d8ad9ee4b358bfe4a07177b6eff [2024-11-09 00:26:27,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:26:27,593 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:26:27,595 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:26:27,595 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:26:27,601 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:26:27,601 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:26:27" (1/1) ... [2024-11-09 00:26:27,603 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@677f4456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:27, skipping insertion in model container [2024-11-09 00:26:27,603 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:26:27" (1/1) ... [2024-11-09 00:26:27,627 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:26:27,836 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_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/sv-benchmarks/c/combinations/gcd_4+newton_2_5.i[1224,1237] [2024-11-09 00:26:27,870 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_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/sv-benchmarks/c/combinations/gcd_4+newton_2_5.i[2827,2840] [2024-11-09 00:26:27,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:26:27,887 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:26:27,906 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_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/sv-benchmarks/c/combinations/gcd_4+newton_2_5.i[1224,1237] [2024-11-09 00:26:27,932 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_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/sv-benchmarks/c/combinations/gcd_4+newton_2_5.i[2827,2840] [2024-11-09 00:26:27,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:26:27,966 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:26:27,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:27 WrapperNode [2024-11-09 00:26:27,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:26:27,968 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:26:27,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:26:27,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:26:27,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:27" (1/1) ... [2024-11-09 00:26:27,991 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:27" (1/1) ... [2024-11-09 00:26:28,049 INFO L138 Inliner]: procedures = 28, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 75 [2024-11-09 00:26:28,051 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:26:28,052 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:26:28,052 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:26:28,052 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:26:28,063 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:27" (1/1) ... [2024-11-09 00:26:28,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:27" (1/1) ... [2024-11-09 00:26:28,066 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:27" (1/1) ... [2024-11-09 00:26:28,071 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:27" (1/1) ... [2024-11-09 00:26:28,082 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:27" (1/1) ... [2024-11-09 00:26:28,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:27" (1/1) ... [2024-11-09 00:26:28,088 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:27" (1/1) ... [2024-11-09 00:26:28,089 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:27" (1/1) ... [2024-11-09 00:26:28,093 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:26:28,093 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:26:28,094 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:26:28,094 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:26:28,114 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:27" (1/1) ... [2024-11-09 00:26:28,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:26:28,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:26:28,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:26:28,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:26:28,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:26:28,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 00:26:28,198 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-09 00:26:28,199 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-09 00:26:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-09 00:26:28,199 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-09 00:26:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:26:28,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:26:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 00:26:28,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 00:26:28,295 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:26:28,297 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:26:51,516 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-09 00:26:51,517 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:26:51,589 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:26:51,590 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:26:51,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:26:51 BoogieIcfgContainer [2024-11-09 00:26:51,590 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:26:51,591 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:26:51,591 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:26:51,614 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:26:51,614 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:26:51" (1/1) ... [2024-11-09 00:26:51,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:26:51,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:51,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 33 states and 42 transitions. [2024-11-09 00:26:51,699 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2024-11-09 00:26:51,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:26:51,707 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:51,708 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:26:51,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:26:51,712 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:26:51,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-09 00:26:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:51,905 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:26:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:51,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 00:26:51,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:26:52,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:26:52,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-09 00:26:52,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:52,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 33 states and 40 transitions. [2024-11-09 00:26:52,246 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2024-11-09 00:26:52,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 00:26:52,247 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:52,247 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:26:52,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:26:52,250 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:26:52,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-09 00:26:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:52,407 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:26:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:52,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 00:26:52,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:26:52,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:26:52,561 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2024-11-09 00:26:52,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-09 00:26:53,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:53,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 34 states and 42 transitions. [2024-11-09 00:26:53,183 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2024-11-09 00:26:53,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 00:26:53,183 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:53,184 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:26:53,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:26:53,188 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:26:53,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-09 00:26:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:53,257 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:26:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:53,305 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 00:26:53,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:26:53,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:26:53,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-09 00:26:53,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:53,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 34 states and 41 transitions. [2024-11-09 00:26:53,634 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2024-11-09 00:26:53,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 00:26:53,635 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:53,635 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:26:53,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:26:53,639 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:26:53,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-09 00:26:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:53,813 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:26:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:53,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 00:26:53,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:26:53,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:26:53,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-09 00:26:54,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:54,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 36 states and 44 transitions. [2024-11-09 00:26:54,812 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2024-11-09 00:26:54,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 00:26:54,813 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:54,813 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:26:54,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:26:54,816 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:26:54,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-09 00:26:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:54,976 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:26:55,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:26:55,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 00:26:55,016 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:26:55,411 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:26:55,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2024-11-09 00:26:56,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:56,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 38 states and 47 transitions. [2024-11-09 00:26:56,649 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2024-11-09 00:26:56,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 00:26:56,650 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:56,653 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:26:56,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:26:56,656 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:26:56,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4193ceac-8864-4171-b72e-2b4dfcfaf5e9/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process