./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_4+newton_3_6.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_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/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_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_3_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/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_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/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 d2ff4855d3411c2183b4955db69fb0d32886e02ca6014c3e616f77788a55bdc3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 00:01:17,961 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 00:01:18,013 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 00:01:18,018 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 00:01:18,018 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 00:01:18,036 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 00:01:18,037 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 00:01:18,037 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 00:01:18,038 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 00:01:18,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 00:01:18,038 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 00:01:18,038 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 00:01:18,038 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 00:01:18,038 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 00:01:18,038 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 00:01:18,038 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 00:01:18,038 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 00:01:18,039 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 00:01:18,039 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 00:01:18,039 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 00:01:18,039 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 00:01:18,039 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 00:01:18,039 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 00:01:18,039 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 00:01:18,039 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 00:01:18,039 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 00:01:18,039 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 00:01:18,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:01:18,040 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 00:01:18,040 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 00:01:18,040 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 00:01:18,040 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 00:01:18,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 00:01:18,040 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_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/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 -> d2ff4855d3411c2183b4955db69fb0d32886e02ca6014c3e616f77788a55bdc3 [2024-12-06 00:01:18,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 00:01:18,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 00:01:18,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 00:01:18,250 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 00:01:18,250 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 00:01:18,251 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/combinations/gcd_4+newton_3_6.i [2024-12-06 00:01:20,897 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/data/ab2190bca/dbf0b0cc36a741d39478590212077717/FLAG5a966e9ee [2024-12-06 00:01:21,098 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 00:01:21,098 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/sv-benchmarks/c/combinations/gcd_4+newton_3_6.i [2024-12-06 00:01:21,106 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/data/ab2190bca/dbf0b0cc36a741d39478590212077717/FLAG5a966e9ee [2024-12-06 00:01:21,493 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/data/ab2190bca/dbf0b0cc36a741d39478590212077717 [2024-12-06 00:01:21,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 00:01:21,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 00:01:21,496 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 00:01:21,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 00:01:21,500 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 00:01:21,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:01:21" (1/1) ... [2024-12-06 00:01:21,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65e861c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:21, skipping insertion in model container [2024-12-06 00:01:21,501 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:01:21" (1/1) ... [2024-12-06 00:01:21,511 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 00:01:21,618 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_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/sv-benchmarks/c/combinations/gcd_4+newton_3_6.i[1224,1237] [2024-12-06 00:01:21,642 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_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/sv-benchmarks/c/combinations/gcd_4+newton_3_6.i[2848,2861] [2024-12-06 00:01:21,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:01:21,652 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 00:01:21,661 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_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/sv-benchmarks/c/combinations/gcd_4+newton_3_6.i[1224,1237] [2024-12-06 00:01:21,671 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_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/sv-benchmarks/c/combinations/gcd_4+newton_3_6.i[2848,2861] [2024-12-06 00:01:21,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:01:21,684 INFO L204 MainTranslator]: Completed translation [2024-12-06 00:01:21,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:21 WrapperNode [2024-12-06 00:01:21,685 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 00:01:21,686 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 00:01:21,686 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 00:01:21,686 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 00:01:21,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:21" (1/1) ... [2024-12-06 00:01:21,697 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:21" (1/1) ... [2024-12-06 00:01:21,711 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 83 [2024-12-06 00:01:21,712 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 00:01:21,712 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 00:01:21,712 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 00:01:21,712 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 00:01:21,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:21" (1/1) ... [2024-12-06 00:01:21,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:21" (1/1) ... [2024-12-06 00:01:21,719 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:21" (1/1) ... [2024-12-06 00:01:21,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:21" (1/1) ... [2024-12-06 00:01:21,724 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:21" (1/1) ... [2024-12-06 00:01:21,725 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:21" (1/1) ... [2024-12-06 00:01:21,728 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:21" (1/1) ... [2024-12-06 00:01:21,729 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:21" (1/1) ... [2024-12-06 00:01:21,730 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:21" (1/1) ... [2024-12-06 00:01:21,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 00:01:21,733 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 00:01:21,733 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 00:01:21,733 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 00:01:21,734 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:21" (1/1) ... [2024-12-06 00:01:21,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:01:21,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 00:01:21,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 00:01:21,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 00:01:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 00:01:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-12-06 00:01:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-12-06 00:01:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-12-06 00:01:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-12-06 00:01:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 00:01:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 00:01:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 00:01:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 00:01:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 00:01:21,831 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 00:01:21,833 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 00:01:21,999 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-12-06 00:01:21,999 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 00:01:22,051 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 00:01:22,051 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 00:01:22,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:01:22 BoogieIcfgContainer [2024-12-06 00:01:22,051 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 00:01:22,052 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 00:01:22,052 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 00:01:22,060 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 00:01:22,060 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:01:22" (1/1) ... [2024-12-06 00:01:22,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 00:01:22,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:01:22,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 34 states and 44 transitions. [2024-12-06 00:01:22,108 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2024-12-06 00:01:22,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 00:01:22,111 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:01:22,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:01:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:22,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:01:22,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:01:22,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 34 states and 42 transitions. [2024-12-06 00:01:22,361 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2024-12-06 00:01:22,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 00:01:22,362 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:01:22,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:01:22,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:22,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:01:22,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:01:22,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 35 states and 45 transitions. [2024-12-06 00:01:22,549 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2024-12-06 00:01:22,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 00:01:22,549 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:01:22,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:01:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:22,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:01:22,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:01:22,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 36 states and 47 transitions. [2024-12-06 00:01:22,835 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2024-12-06 00:01:22,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 00:01:22,835 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:01:22,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:01:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:22,998 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:01:23,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:01:23,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 38 states and 54 transitions. [2024-12-06 00:01:23,242 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2024-12-06 00:01:23,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 00:01:23,244 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:01:23,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:01:23,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:23,447 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:01:23,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:01:23,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 41 states and 63 transitions. [2024-12-06 00:01:23,856 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 63 transitions. [2024-12-06 00:01:23,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 00:01:23,857 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:01:23,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:01:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:24,145 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:01:24,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:01:24,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 46 states and 82 transitions. [2024-12-06 00:01:24,869 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 82 transitions. [2024-12-06 00:01:24,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 00:01:24,870 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:01:24,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:01:24,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:25,039 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:01:25,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:01:25,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 47 states and 84 transitions. [2024-12-06 00:01:25,220 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 84 transitions. [2024-12-06 00:01:25,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 00:01:25,221 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:01:25,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:01:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:25,347 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:01:25,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:01:25,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 48 states and 86 transitions. [2024-12-06 00:01:25,504 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 86 transitions. [2024-12-06 00:01:25,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 00:01:25,504 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:01:25,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:01:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 00:01:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:25,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-06 00:01:25,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:01:26,037 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:01:26,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:01:26,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 56 states and 104 transitions. [2024-12-06 00:01:26,854 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 104 transitions. [2024-12-06 00:01:26,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 00:01:26,855 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:01:26,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:01:26,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 00:01:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:26,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-06 00:01:26,892 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:01:26,957 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:01:27,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:01:27,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 41 states and 50 transitions. [2024-12-06 00:01:27,137 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2024-12-06 00:01:27,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-06 00:01:27,138 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:01:27,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:01:27,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 00:01:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:27,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-06 00:01:27,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:01:27,639 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:01:29,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:01:29,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 41 states and 49 transitions. [2024-12-06 00:01:29,473 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2024-12-06 00:01:29,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-06 00:01:29,473 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:01:29,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:01:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:01:29,480 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:01:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:01:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:01:29,515 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:01:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:01:29,537 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 12 iterations. [2024-12-06 00:01:29,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 12:01:29 ImpRootNode [2024-12-06 00:01:29,559 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 00:01:29,559 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 00:01:29,559 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 00:01:29,559 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 00:01:29,560 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:01:22" (3/4) ... [2024-12-06 00:01:29,562 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 00:01:29,562 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 00:01:29,563 INFO L158 Benchmark]: Toolchain (without parser) took 8067.51ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 93.1MB in the beginning and 151.7MB in the end (delta: -58.6MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. [2024-12-06 00:01:29,563 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:01:29,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.57ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 80.9MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:01:29,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.29ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.6MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:01:29,564 INFO L158 Benchmark]: Boogie Preprocessor took 19.72ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 78.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:01:29,565 INFO L158 Benchmark]: RCFGBuilder took 318.71ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 61.8MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 00:01:29,565 INFO L158 Benchmark]: CodeCheck took 7506.52ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 61.8MB in the beginning and 151.7MB in the end (delta: -89.9MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2024-12-06 00:01:29,566 INFO L158 Benchmark]: Witness Printer took 3.46ms. Allocated memory is still 226.5MB. Free memory was 151.7MB in the beginning and 151.7MB in the end (delta: 45.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:01:29,567 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, 34 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 7.5s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 361 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 114 mSDsluCounter, 118 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 609 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1741 IncrementalHoareTripleChecker+Invalid, 2350 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 609 mSolverCounterUnsat, 118 mSDtfsCounter, 1741 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1455 GetRequests, 1279 SyntacticMatches, 22 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11511 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 682 SizeOfPredicates, 6 NumberOfNonLiveVariables, 231 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 2/87 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - 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 100, overapproximation of someBinaryArithmeticFLOAToperation at line 87, overapproximation of someBinaryArithmeticFLOAToperation at line 102, overapproximation of someBinaryArithmeticFLOAToperation at line 92, overapproximation of someBinaryArithmeticFLOAToperation at line 104. Possible FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L82] COND FALSE !(!cond) [L98] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [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) [L104] CALL, EXPR f(x) VAL [\old(x)=4] [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L104] RET, EXPR f(x) VAL [IN=2, x=4] [L104] CALL, EXPR fp(x) VAL [\old(x)=4] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L104] RET, EXPR fp(x) VAL [IN=2, x=4] [L104] 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 0.30ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.57ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 80.9MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.29ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.6MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.72ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 78.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 318.71ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 61.8MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 7506.52ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 61.8MB in the beginning and 151.7MB in the end (delta: -89.9MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * Witness Printer took 3.46ms. Allocated memory is still 226.5MB. Free memory was 151.7MB in the beginning and 151.7MB in the end (delta: 45.2kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 00:01:29,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/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_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/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_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_3_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/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_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/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 d2ff4855d3411c2183b4955db69fb0d32886e02ca6014c3e616f77788a55bdc3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 00:01:31,453 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 00:01:31,549 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-12-06 00:01:31,575 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 00:01:31,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 00:01:31,576 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 00:01:31,577 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 00:01:31,577 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 00:01:31,577 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 00:01:31,577 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 00:01:31,577 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 00:01:31,577 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 00:01:31,577 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 00:01:31,578 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 00:01:31,578 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 00:01:31,578 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 00:01:31,578 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 00:01:31,578 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 00:01:31,578 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 00:01:31,578 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 00:01:31,578 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 00:01:31,578 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 00:01:31,578 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 00:01:31,578 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 00:01:31,579 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 00:01:31,579 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 00:01:31,579 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 00:01:31,579 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 00:01:31,579 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 00:01:31,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:01:31,579 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 00:01:31,579 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 00:01:31,579 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 00:01:31,579 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 00:01:31,579 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 00:01:31,580 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 00:01:31,580 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_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/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 -> d2ff4855d3411c2183b4955db69fb0d32886e02ca6014c3e616f77788a55bdc3 [2024-12-06 00:01:31,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 00:01:31,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 00:01:31,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 00:01:31,844 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 00:01:31,844 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 00:01:31,845 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/combinations/gcd_4+newton_3_6.i [2024-12-06 00:01:34,517 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/data/408571d23/68444d9e47e945a1ac108a9881c42b10/FLAGdb537f575 [2024-12-06 00:01:34,696 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 00:01:34,697 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/sv-benchmarks/c/combinations/gcd_4+newton_3_6.i [2024-12-06 00:01:34,704 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/data/408571d23/68444d9e47e945a1ac108a9881c42b10/FLAGdb537f575 [2024-12-06 00:01:34,716 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/data/408571d23/68444d9e47e945a1ac108a9881c42b10 [2024-12-06 00:01:34,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 00:01:34,720 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 00:01:34,722 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 00:01:34,722 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 00:01:34,725 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 00:01:34,726 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:01:34" (1/1) ... [2024-12-06 00:01:34,726 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a5f02bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:34, skipping insertion in model container [2024-12-06 00:01:34,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:01:34" (1/1) ... [2024-12-06 00:01:34,738 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 00:01:34,873 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_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/sv-benchmarks/c/combinations/gcd_4+newton_3_6.i[1224,1237] [2024-12-06 00:01:34,897 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_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/sv-benchmarks/c/combinations/gcd_4+newton_3_6.i[2848,2861] [2024-12-06 00:01:34,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:01:34,909 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 00:01:34,918 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_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/sv-benchmarks/c/combinations/gcd_4+newton_3_6.i[1224,1237] [2024-12-06 00:01:34,928 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_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/sv-benchmarks/c/combinations/gcd_4+newton_3_6.i[2848,2861] [2024-12-06 00:01:34,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:01:34,943 INFO L204 MainTranslator]: Completed translation [2024-12-06 00:01:34,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:34 WrapperNode [2024-12-06 00:01:34,943 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 00:01:34,944 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 00:01:34,944 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 00:01:34,944 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 00:01:34,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:34" (1/1) ... [2024-12-06 00:01:34,956 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:34" (1/1) ... [2024-12-06 00:01:34,974 INFO L138 Inliner]: procedures = 28, calls = 28, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 80 [2024-12-06 00:01:34,975 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 00:01:34,975 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 00:01:34,975 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 00:01:34,975 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 00:01:34,981 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:34" (1/1) ... [2024-12-06 00:01:34,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:34" (1/1) ... [2024-12-06 00:01:34,984 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:34" (1/1) ... [2024-12-06 00:01:34,984 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:34" (1/1) ... [2024-12-06 00:01:34,991 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:34" (1/1) ... [2024-12-06 00:01:34,992 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:34" (1/1) ... [2024-12-06 00:01:34,996 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:34" (1/1) ... [2024-12-06 00:01:34,998 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:34" (1/1) ... [2024-12-06 00:01:34,999 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:34" (1/1) ... [2024-12-06 00:01:35,001 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 00:01:35,002 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 00:01:35,002 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 00:01:35,002 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 00:01:35,003 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:01:34" (1/1) ... [2024-12-06 00:01:35,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:01:35,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 00:01:35,027 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 00:01:35,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 00:01:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 00:01:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 00:01:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-12-06 00:01:35,050 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-12-06 00:01:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-12-06 00:01:35,050 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-12-06 00:01:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 00:01:35,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 00:01:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 00:01:35,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 00:01:35,106 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 00:01:35,107 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 00:01:55,322 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-12-06 00:01:55,322 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 00:01:55,378 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 00:01:55,379 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 00:01:55,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:01:55 BoogieIcfgContainer [2024-12-06 00:01:55,379 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 00:01:55,380 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 00:01:55,380 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 00:01:55,386 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 00:01:55,386 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:01:55" (1/1) ... [2024-12-06 00:01:55,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 00:01:55,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:01:55,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 34 states and 44 transitions. [2024-12-06 00:01:55,429 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2024-12-06 00:01:55,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 00:01:55,433 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:01:55,434 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:01:55,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:01:55,436 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:01:55,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 00:01:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:55,571 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:01:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:55,611 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-06 00:01:55,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:01:55,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:01:55,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 00:01:55,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:01:55,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 34 states and 42 transitions. [2024-12-06 00:01:55,830 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2024-12-06 00:01:55,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 00:01:55,831 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:01:55,831 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:01:55,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:01:55,833 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:01:55,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-06 00:01:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:55,958 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:01:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:55,984 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-06 00:01:55,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:01:56,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:01:56,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-12-06 00:01:56,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:01:56,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 35 states and 45 transitions. [2024-12-06 00:01:56,568 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2024-12-06 00:01:56,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 00:01:56,568 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:01:56,569 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:01:56,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:01:56,571 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:01:56,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-12-06 00:01:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:56,710 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:01:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:56,737 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-06 00:01:56,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:01:56,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:01:56,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-12-06 00:01:57,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:01:57,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 36 states and 48 transitions. [2024-12-06 00:01:57,149 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 48 transitions. [2024-12-06 00:01:57,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 00:01:57,150 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:01:57,150 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:01:57,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:01:57,152 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:01:57,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-12-06 00:01:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:57,287 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:01:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:57,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-06 00:01:57,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:01:57,580 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:01:57,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-12-06 00:01:58,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:01:58,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 37 states and 50 transitions. [2024-12-06 00:01:58,109 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2024-12-06 00:01:58,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 00:01:58,109 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:01:58,110 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:01:58,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:01:58,111 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:01:58,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-12-06 00:01:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:58,230 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:01:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:58,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-06 00:01:58,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:01:58,557 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:01:58,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-12-06 00:01:59,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:01:59,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 38 states and 52 transitions. [2024-12-06 00:01:59,170 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2024-12-06 00:01:59,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 00:01:59,170 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:01:59,170 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:01:59,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:01:59,172 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:01:59,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-12-06 00:01:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:59,302 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:01:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:01:59,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-06 00:01:59,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:01:59,775 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:01:59,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-12-06 00:02:01,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:02:01,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 40 states and 58 transitions. [2024-12-06 00:02:01,089 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions. [2024-12-06 00:02:01,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 00:02:01,090 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:02:01,090 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:02:01,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:02:01,092 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:02:01,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-12-06 00:02:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:02:01,222 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:02:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:02:01,255 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-06 00:02:01,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:02:03,866 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:02:03,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-12-06 00:02:10,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:02:10,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 41 states and 50 transitions. [2024-12-06 00:02:10,569 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2024-12-06 00:02:10,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-06 00:02:10,570 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:02:10,570 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:02:10,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:02:10,572 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:02:10,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-12-06 00:02:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:02:10,774 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:02:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:02:10,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-06 00:02:10,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:02:15,915 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:02:15,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-12-06 00:02:30,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:02:30,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 43 states and 52 transitions. [2024-12-06 00:02:30,782 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2024-12-06 00:02:30,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-06 00:02:30,783 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:02:30,783 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:02:30,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:02:30,785 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:02:30,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fe8d8a-0ed7-4f8d-a02b-6b42a02645a4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process