./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_4+newton_2_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_2_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5365e3b9adf0a1dadb935cfdb4266af37826f3120fbeff3f7ce577b21fb856a6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:58:03,851 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:58:03,906 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-05 23:58:03,910 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 23:58:03,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 23:58:03,929 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:58:03,929 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:58:03,929 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:58:03,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:58:03,930 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:58:03,930 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:58:03,930 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:58:03,930 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 23:58:03,930 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 23:58:03,930 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 23:58:03,931 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:58:03,931 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:58:03,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:58:03,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:58:03,931 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 23:58:03,931 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:58:03,931 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:58:03,931 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:58:03,931 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:58:03,931 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:58:03,931 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:58:03,931 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:58:03,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:58:03,932 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:58:03,932 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:58:03,932 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:58:03,932 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 23:58:03,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 23:58:03,932 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_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5365e3b9adf0a1dadb935cfdb4266af37826f3120fbeff3f7ce577b21fb856a6 [2024-12-05 23:58:04,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:58:04,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:58:04,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:58:04,178 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:58:04,178 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:58:04,179 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/combinations/gcd_4+newton_2_7.i [2024-12-05 23:58:06,807 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/data/4136d8ec5/09fe314f027c43bb97a6d084c9544c0a/FLAG6c3cc80c7 [2024-12-05 23:58:07,002 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:58:07,003 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/sv-benchmarks/c/combinations/gcd_4+newton_2_7.i [2024-12-05 23:58:07,011 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/data/4136d8ec5/09fe314f027c43bb97a6d084c9544c0a/FLAG6c3cc80c7 [2024-12-05 23:58:07,369 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/data/4136d8ec5/09fe314f027c43bb97a6d084c9544c0a [2024-12-05 23:58:07,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:58:07,372 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:58:07,373 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:58:07,373 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:58:07,376 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:58:07,377 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:58:07" (1/1) ... [2024-12-05 23:58:07,378 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27d56d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:07, skipping insertion in model container [2024-12-05 23:58:07,378 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:58:07" (1/1) ... [2024-12-05 23:58:07,390 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:58:07,491 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_8d3ad349-46d9-4772-8384-c2ff194d4db4/sv-benchmarks/c/combinations/gcd_4+newton_2_7.i[1224,1237] [2024-12-05 23:58:07,513 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_8d3ad349-46d9-4772-8384-c2ff194d4db4/sv-benchmarks/c/combinations/gcd_4+newton_2_7.i[2827,2840] [2024-12-05 23:58:07,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:58:07,523 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:58:07,532 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_8d3ad349-46d9-4772-8384-c2ff194d4db4/sv-benchmarks/c/combinations/gcd_4+newton_2_7.i[1224,1237] [2024-12-05 23:58:07,541 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_8d3ad349-46d9-4772-8384-c2ff194d4db4/sv-benchmarks/c/combinations/gcd_4+newton_2_7.i[2827,2840] [2024-12-05 23:58:07,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:58:07,554 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:58:07,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:07 WrapperNode [2024-12-05 23:58:07,555 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:58:07,556 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:58:07,556 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:58:07,556 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:58:07,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:07" (1/1) ... [2024-12-05 23:58:07,566 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:07" (1/1) ... [2024-12-05 23:58:07,582 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 78 [2024-12-05 23:58:07,582 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:58:07,583 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:58:07,583 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:58:07,583 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:58:07,588 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:07" (1/1) ... [2024-12-05 23:58:07,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:07" (1/1) ... [2024-12-05 23:58:07,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:07" (1/1) ... [2024-12-05 23:58:07,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:07" (1/1) ... [2024-12-05 23:58:07,594 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:07" (1/1) ... [2024-12-05 23:58:07,595 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:07" (1/1) ... [2024-12-05 23:58:07,598 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:07" (1/1) ... [2024-12-05 23:58:07,600 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:07" (1/1) ... [2024-12-05 23:58:07,601 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:07" (1/1) ... [2024-12-05 23:58:07,602 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:58:07,603 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:58:07,603 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:58:07,603 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:58:07,604 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:07" (1/1) ... [2024-12-05 23:58:07,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:58:07,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:58:07,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:58:07,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:58:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:58:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-12-05 23:58:07,649 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-12-05 23:58:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-12-05 23:58:07,649 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-12-05 23:58:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 23:58:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:58:07,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:58:07,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-05 23:58:07,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-05 23:58:07,699 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:58:07,700 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:58:07,840 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-12-05 23:58:07,840 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:58:07,885 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:58:07,885 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-05 23:58:07,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:58:07 BoogieIcfgContainer [2024-12-05 23:58:07,886 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:58:07,886 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:58:07,886 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:58:07,895 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:58:07,895 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:58:07" (1/1) ... [2024-12-05 23:58:07,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:58:07,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:58:07,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 31 states and 39 transitions. [2024-12-05 23:58:07,942 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2024-12-05 23:58:07,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 23:58:07,945 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:58:07,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:58:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:08,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:58:08,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:58:08,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2024-12-05 23:58:08,185 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2024-12-05 23:58:08,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-05 23:58:08,185 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:58:08,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:58:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:08,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:58:08,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:58:08,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 32 states and 40 transitions. [2024-12-05 23:58:08,360 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2024-12-05 23:58:08,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-05 23:58:08,361 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:58:08,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:58:08,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:08,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:58:08,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:58:08,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 33 states and 42 transitions. [2024-12-05 23:58:08,633 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2024-12-05 23:58:08,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-05 23:58:08,634 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:58:08,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:58:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:08,780 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:58:08,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:58:09,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 35 states and 49 transitions. [2024-12-05 23:58:09,000 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2024-12-05 23:58:09,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-05 23:58:09,001 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:58:09,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:58:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:09,185 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:58:09,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:58:09,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 38 states and 58 transitions. [2024-12-05 23:58:09,590 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 58 transitions. [2024-12-05 23:58:09,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-05 23:58:09,590 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:58:09,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:58:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:09,839 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:58:10,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:58:10,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 43 states and 78 transitions. [2024-12-05 23:58:10,506 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 78 transitions. [2024-12-05 23:58:10,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-05 23:58:10,506 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:58:10,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:58:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:10,632 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:58:10,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:58:10,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 44 states and 79 transitions. [2024-12-05 23:58:10,784 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 79 transitions. [2024-12-05 23:58:10,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-05 23:58:10,785 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:58:10,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:58:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:10,911 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:58:11,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:58:11,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 45 states and 81 transitions. [2024-12-05 23:58:11,093 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 81 transitions. [2024-12-05 23:58:11,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 23:58:11,094 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:58:11,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:58:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:58:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:11,133 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-05 23:58:11,138 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:58:11,633 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:58:12,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:58:12,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 54 states and 100 transitions. [2024-12-05 23:58:12,596 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 100 transitions. [2024-12-05 23:58:12,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 23:58:12,598 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:58:12,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:58:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:58:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:12,638 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-05 23:58:12,640 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:58:12,720 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:58:12,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:58:12,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 38 states and 45 transitions. [2024-12-05 23:58:12,812 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2024-12-05 23:58:12,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-05 23:58:12,812 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:58:12,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:58:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:58:12,820 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:58:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:58:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:58:12,856 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:58:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:58:12,878 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2024-12-05 23:58:12,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 11:58:12 ImpRootNode [2024-12-05 23:58:12,902 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 23:58:12,902 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 23:58:12,902 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 23:58:12,903 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 23:58:12,903 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:58:07" (3/4) ... [2024-12-05 23:58:12,905 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 23:58:12,906 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 23:58:12,907 INFO L158 Benchmark]: Toolchain (without parser) took 5534.50ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 118.6MB in the beginning and 287.9MB in the end (delta: -169.3MB). Peak memory consumption was 113.8MB. Max. memory is 16.1GB. [2024-12-05 23:58:12,907 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:58:12,908 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.66ms. Allocated memory is still 142.6MB. Free memory was 118.4MB in the beginning and 106.4MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:58:12,908 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.67ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:58:12,909 INFO L158 Benchmark]: Boogie Preprocessor took 19.70ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 104.0MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:58:12,909 INFO L158 Benchmark]: RCFGBuilder took 282.66ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 87.0MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:58:12,909 INFO L158 Benchmark]: CodeCheck took 5015.47ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 86.8MB in the beginning and 287.9MB in the end (delta: -201.0MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. [2024-12-05 23:58:12,910 INFO L158 Benchmark]: Witness Printer took 3.82ms. Allocated memory is still 427.8MB. Free memory was 287.9MB in the beginning and 287.9MB in the end (delta: 17.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:58:12,912 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, 31 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 312 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 96 mSDsluCounter, 98 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 481 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1387 IncrementalHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 481 mSolverCounterUnsat, 98 mSDtfsCounter, 1387 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1255 GetRequests, 1127 SyntacticMatches, 22 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5540 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 579 SizeOfPredicates, 4 NumberOfNonLiveVariables, 148 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 0/70 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - 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 87, overapproximation of someBinaryArithmeticFLOAToperation at line 92, overapproximation of someBinaryArithmeticFLOAToperation at line 100, 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 > -1.4f && IN < 1.4f) [L82] COND FALSE !(!cond) [L98] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [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 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 181.66ms. Allocated memory is still 142.6MB. Free memory was 118.4MB in the beginning and 106.4MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.67ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.70ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 104.0MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 282.66ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 87.0MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 5015.47ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 86.8MB in the beginning and 287.9MB in the end (delta: -201.0MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. * Witness Printer took 3.82ms. Allocated memory is still 427.8MB. Free memory was 287.9MB in the beginning and 287.9MB in the end (delta: 17.7kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 23:58:12,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_2_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5365e3b9adf0a1dadb935cfdb4266af37826f3120fbeff3f7ce577b21fb856a6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:58:14,826 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:58:14,909 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-12-05 23:58:14,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:58:14,936 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:58:14,936 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:58:14,937 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:58:14,937 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:58:14,937 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:58:14,937 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:58:14,937 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 23:58:14,937 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 23:58:14,937 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:58:14,938 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:58:14,938 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:58:14,938 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:58:14,938 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 23:58:14,938 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 23:58:14,938 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 23:58:14,938 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 23:58:14,938 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:58:14,938 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:58:14,938 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:58:14,938 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:58:14,939 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:58:14,939 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:58:14,939 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:58:14,939 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-05 23:58:14,939 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:58:14,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:58:14,939 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:58:14,940 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:58:14,940 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:58:14,940 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-05 23:58:14,940 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:58:14,940 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-05 23:58:14,940 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_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5365e3b9adf0a1dadb935cfdb4266af37826f3120fbeff3f7ce577b21fb856a6 [2024-12-05 23:58:15,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:58:15,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:58:15,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:58:15,191 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:58:15,191 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:58:15,192 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/combinations/gcd_4+newton_2_7.i [2024-12-05 23:58:17,870 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/data/e1cadd72b/216e68ce9a684c369cdcce5880ffd714/FLAGaf912100a [2024-12-05 23:58:18,032 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:58:18,033 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/sv-benchmarks/c/combinations/gcd_4+newton_2_7.i [2024-12-05 23:58:18,040 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/data/e1cadd72b/216e68ce9a684c369cdcce5880ffd714/FLAGaf912100a [2024-12-05 23:58:18,053 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/data/e1cadd72b/216e68ce9a684c369cdcce5880ffd714 [2024-12-05 23:58:18,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:58:18,056 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:58:18,057 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:58:18,057 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:58:18,060 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:58:18,061 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:58:18" (1/1) ... [2024-12-05 23:58:18,061 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ec21f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:18, skipping insertion in model container [2024-12-05 23:58:18,061 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:58:18" (1/1) ... [2024-12-05 23:58:18,076 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:58:18,205 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_8d3ad349-46d9-4772-8384-c2ff194d4db4/sv-benchmarks/c/combinations/gcd_4+newton_2_7.i[1224,1237] [2024-12-05 23:58:18,229 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_8d3ad349-46d9-4772-8384-c2ff194d4db4/sv-benchmarks/c/combinations/gcd_4+newton_2_7.i[2827,2840] [2024-12-05 23:58:18,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:58:18,243 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:58:18,252 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_8d3ad349-46d9-4772-8384-c2ff194d4db4/sv-benchmarks/c/combinations/gcd_4+newton_2_7.i[1224,1237] [2024-12-05 23:58:18,262 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_8d3ad349-46d9-4772-8384-c2ff194d4db4/sv-benchmarks/c/combinations/gcd_4+newton_2_7.i[2827,2840] [2024-12-05 23:58:18,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:58:18,276 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:58:18,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:18 WrapperNode [2024-12-05 23:58:18,277 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:58:18,277 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:58:18,277 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:58:18,278 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:58:18,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:18" (1/1) ... [2024-12-05 23:58:18,289 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:18" (1/1) ... [2024-12-05 23:58:18,302 INFO L138 Inliner]: procedures = 28, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 75 [2024-12-05 23:58:18,303 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:58:18,303 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:58:18,303 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:58:18,303 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:58:18,310 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:18" (1/1) ... [2024-12-05 23:58:18,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:18" (1/1) ... [2024-12-05 23:58:18,314 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:18" (1/1) ... [2024-12-05 23:58:18,314 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:18" (1/1) ... [2024-12-05 23:58:18,320 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:18" (1/1) ... [2024-12-05 23:58:18,321 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:18" (1/1) ... [2024-12-05 23:58:18,324 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:18" (1/1) ... [2024-12-05 23:58:18,325 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:18" (1/1) ... [2024-12-05 23:58:18,326 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:18" (1/1) ... [2024-12-05 23:58:18,329 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:58:18,329 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:58:18,329 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:58:18,329 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:58:18,330 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:58:18" (1/1) ... [2024-12-05 23:58:18,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:58:18,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:58:18,355 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:58:18,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:58:18,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:58:18,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 23:58:18,376 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-12-05 23:58:18,376 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-12-05 23:58:18,376 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-12-05 23:58:18,376 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-12-05 23:58:18,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:58:18,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:58:18,376 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-05 23:58:18,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-05 23:58:18,426 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:58:18,428 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:58:41,930 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-12-05 23:58:41,930 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:58:41,990 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:58:41,990 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-05 23:58:41,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:58:41 BoogieIcfgContainer [2024-12-05 23:58:41,991 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:58:41,991 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:58:41,992 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:58:42,001 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:58:42,001 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:58:41" (1/1) ... [2024-12-05 23:58:42,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:58:42,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:58:42,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 31 states and 39 transitions. [2024-12-05 23:58:42,043 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2024-12-05 23:58:42,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 23:58:42,047 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:58:42,047 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:58:42,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:58:42,049 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:58:42,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-05 23:58:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:42,194 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:58:42,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:42,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-05 23:58:42,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:58:42,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:58:42,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-05 23:58:42,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:58:42,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2024-12-05 23:58:42,471 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2024-12-05 23:58:42,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-05 23:58:42,472 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:58:42,472 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:58:42,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:58:42,474 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:58:42,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-05 23:58:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:42,603 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:58:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:42,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-05 23:58:42,634 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:58:42,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:58:42,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-12-05 23:58:43,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:58:43,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 32 states and 40 transitions. [2024-12-05 23:58:43,203 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2024-12-05 23:58:43,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-05 23:58:43,204 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:58:43,204 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:58:43,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:58:43,206 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:58:43,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-12-05 23:58:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:43,326 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:58:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:43,360 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-05 23:58:43,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:58:43,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:58:43,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-12-05 23:58:43,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:58:43,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 33 states and 43 transitions. [2024-12-05 23:58:43,799 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2024-12-05 23:58:43,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-05 23:58:43,800 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:58:43,800 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:58:43,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:58:43,802 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:58:43,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-12-05 23:58:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:43,920 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:58:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:43,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-05 23:58:43,948 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:58:44,172 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:58:44,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-12-05 23:58:44,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:58:44,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 34 states and 45 transitions. [2024-12-05 23:58:44,689 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2024-12-05 23:58:44,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-05 23:58:44,689 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:58:44,689 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:58:44,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:58:44,691 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:58:44,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-12-05 23:58:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:44,820 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:58:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:44,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 23:58:44,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:58:45,160 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:58:45,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-12-05 23:58:45,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:58:45,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 35 states and 47 transitions. [2024-12-05 23:58:45,817 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 47 transitions. [2024-12-05 23:58:45,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-05 23:58:45,818 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:58:45,818 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:58:45,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:58:45,820 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:58:45,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-12-05 23:58:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:45,938 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:58:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:45,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-05 23:58:45,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:58:46,415 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:58:46,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-12-05 23:58:47,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:58:47,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 37 states and 53 transitions. [2024-12-05 23:58:47,683 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 53 transitions. [2024-12-05 23:58:47,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 23:58:47,684 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:58:47,684 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:58:47,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:58:47,686 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:58:47,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-12-05 23:58:47,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:47,813 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:58:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:58:47,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-05 23:58:47,854 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:58:50,490 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:58:50,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-12-05 23:58:57,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:58:57,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 38 states and 45 transitions. [2024-12-05 23:58:57,324 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2024-12-05 23:58:57,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-05 23:58:57,325 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:58:57,325 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:58:57,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:58:57,327 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:58:57,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d3ad349-46d9-4772-8384-c2ff194d4db4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process