./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/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_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/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_d05dfb46-4a11-4d92-9820-3f25c0df4756/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 ee159be1ed42c29b70080447b490f7a1aeb72331afc90e5794e0e8d61cb20d74 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 21:43:26,512 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 21:43:26,568 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-05 21:43:26,573 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 21:43:26,573 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 21:43:26,592 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 21:43:26,593 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 21:43:26,593 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 21:43:26,594 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 21:43:26,594 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 21:43:26,594 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 21:43:26,594 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 21:43:26,594 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 21:43:26,594 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 21:43:26,595 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 21:43:26,595 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 21:43:26,595 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 21:43:26,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 21:43:26,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 21:43:26,595 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 21:43:26,595 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 21:43:26,595 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 21:43:26,595 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 21:43:26,595 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 21:43:26,595 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 21:43:26,595 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 21:43:26,596 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 21:43:26,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:43:26,596 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 21:43:26,596 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 21:43:26,596 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 21:43:26,596 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 21:43:26,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 21:43:26,596 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_d05dfb46-4a11-4d92-9820-3f25c0df4756/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 -> ee159be1ed42c29b70080447b490f7a1aeb72331afc90e5794e0e8d61cb20d74 [2024-12-05 21:43:26,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 21:43:26,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 21:43:26,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 21:43:26,816 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 21:43:26,816 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 21:43:26,818 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c [2024-12-05 21:43:29,413 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/data/c7fa8e169/e58aa5cc924d4f73b8fb1d1955568442/FLAGfb5ddc4a5 [2024-12-05 21:43:29,620 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 21:43:29,621 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c [2024-12-05 21:43:29,628 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/data/c7fa8e169/e58aa5cc924d4f73b8fb1d1955568442/FLAGfb5ddc4a5 [2024-12-05 21:43:29,998 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/data/c7fa8e169/e58aa5cc924d4f73b8fb1d1955568442 [2024-12-05 21:43:30,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 21:43:30,001 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 21:43:30,003 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 21:43:30,003 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 21:43:30,007 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 21:43:30,007 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:43:29" (1/1) ... [2024-12-05 21:43:30,008 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@318e1602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:30, skipping insertion in model container [2024-12-05 21:43:30,008 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:43:29" (1/1) ... [2024-12-05 21:43:30,019 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 21:43:30,142 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_d05dfb46-4a11-4d92-9820-3f25c0df4756/sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c[721,734] [2024-12-05 21:43:30,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:43:30,158 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 21:43:30,170 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_d05dfb46-4a11-4d92-9820-3f25c0df4756/sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c[721,734] [2024-12-05 21:43:30,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:43:30,184 INFO L204 MainTranslator]: Completed translation [2024-12-05 21:43:30,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:30 WrapperNode [2024-12-05 21:43:30,184 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 21:43:30,185 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 21:43:30,185 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 21:43:30,185 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 21:43:30,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:30" (1/1) ... [2024-12-05 21:43:30,195 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:30" (1/1) ... [2024-12-05 21:43:30,209 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2024-12-05 21:43:30,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 21:43:30,210 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 21:43:30,210 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 21:43:30,210 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 21:43:30,215 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:30" (1/1) ... [2024-12-05 21:43:30,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:30" (1/1) ... [2024-12-05 21:43:30,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:30" (1/1) ... [2024-12-05 21:43:30,216 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:30" (1/1) ... [2024-12-05 21:43:30,219 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:30" (1/1) ... [2024-12-05 21:43:30,219 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:30" (1/1) ... [2024-12-05 21:43:30,220 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:30" (1/1) ... [2024-12-05 21:43:30,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:30" (1/1) ... [2024-12-05 21:43:30,221 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:30" (1/1) ... [2024-12-05 21:43:30,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 21:43:30,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 21:43:30,223 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 21:43:30,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 21:43:30,224 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:30" (1/1) ... [2024-12-05 21:43:30,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:43:30,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 21:43:30,256 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 21:43:30,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 21:43:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 21:43:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 21:43:30,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 21:43:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 21:43:30,346 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 21:43:30,348 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 21:43:30,418 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-12-05 21:43:30,418 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 21:43:30,434 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 21:43:30,434 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 21:43:30,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:43:30 BoogieIcfgContainer [2024-12-05 21:43:30,434 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 21:43:30,435 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 21:43:30,435 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 21:43:30,443 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 21:43:30,443 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:43:30" (1/1) ... [2024-12-05 21:43:30,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 21:43:30,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:30,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-12-05 21:43:30,492 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-12-05 21:43:30,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-05 21:43:30,494 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:30,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:43:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:30,606 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 21:43:30,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:30,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2024-12-05 21:43:30,651 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2024-12-05 21:43:30,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-05 21:43:30,651 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:30,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:43:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:30,705 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 21:43:30,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:30,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2024-12-05 21:43:30,756 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2024-12-05 21:43:30,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-05 21:43:30,756 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:30,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:43:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:30,820 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 21:43:30,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:30,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2024-12-05 21:43:30,879 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2024-12-05 21:43:30,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 21:43:30,879 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:30,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:43:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:30,948 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 21:43:31,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:31,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2024-12-05 21:43:31,005 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2024-12-05 21:43:31,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 21:43:31,005 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:31,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:43:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:31,071 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 21:43:31,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:31,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2024-12-05 21:43:31,126 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2024-12-05 21:43:31,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-05 21:43:31,126 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:31,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:43:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:31,199 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 21:43:31,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:31,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2024-12-05 21:43:31,265 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-12-05 21:43:31,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-05 21:43:31,266 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:31,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:43:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:31,349 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:43:31,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:31,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2024-12-05 21:43:31,415 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-12-05 21:43:31,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-05 21:43:31,416 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:31,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:43:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:31,502 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:43:31,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:31,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2024-12-05 21:43:31,568 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2024-12-05 21:43:31,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-05 21:43:31,569 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:31,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:43:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:31,642 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:43:31,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:31,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2024-12-05 21:43:31,711 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2024-12-05 21:43:31,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-05 21:43:31,711 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:31,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:43:31,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:31,786 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:43:31,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:31,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2024-12-05 21:43:31,866 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2024-12-05 21:43:31,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 21:43:31,866 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:31,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:43:31,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:43:31,876 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 21:43:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:43:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:43:31,914 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 21:43:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:43:31,934 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2024-12-05 21:43:31,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 09:43:31 ImpRootNode [2024-12-05 21:43:31,958 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 21:43:31,958 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 21:43:31,958 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 21:43:31,958 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 21:43:31,959 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:43:30" (3/4) ... [2024-12-05 21:43:31,961 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 21:43:31,962 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 21:43:31,963 INFO L158 Benchmark]: Toolchain (without parser) took 1961.47ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 55.3MB in the end (delta: 61.9MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. [2024-12-05 21:43:31,963 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:43:31,963 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.20ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 106.6MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 21:43:31,964 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.57ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 105.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:43:31,964 INFO L158 Benchmark]: Boogie Preprocessor took 12.33ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 104.6MB in the end (delta: 833.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:43:31,964 INFO L158 Benchmark]: RCFGBuilder took 211.62ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 94.7MB in the end (delta: 9.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 21:43:31,964 INFO L158 Benchmark]: CodeCheck took 1522.71ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 55.4MB in the end (delta: 39.3MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. [2024-12-05 21:43:31,965 INFO L158 Benchmark]: Witness Printer took 3.78ms. Allocated memory is still 142.6MB. Free memory was 55.4MB in the beginning and 55.3MB in the end (delta: 15.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:43:31,967 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 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 88 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 211 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 229 IncrementalHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 211 mSolverCounterUnsat, 30 mSDtfsCounter, 229 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 592 GetRequests, 509 SyntacticMatches, 45 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 185 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 0/165 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: 29]: 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 someBinaryDOUBLEComparisonOperation at line 24, overapproximation of someBinaryArithmeticFLOAToperation at line 16. Possible FailurePath: [L1] int __return_main; [L9] float main__tick = 0.10000000149011612; [L10] float main__time = 0.0; [L11] int main__i; [L12] main__i = 0 VAL [__return_main=0, main__i=0] [L14] COND TRUE main__i < 10 [L16] main__time = main__time + main__tick [L17] main__i = main__i + 1 VAL [__return_main=0, main__i=1] [L14] COND TRUE main__i < 10 [L16] main__time = main__time + main__tick [L17] main__i = main__i + 1 VAL [__return_main=0, main__i=2] [L14] COND TRUE main__i < 10 [L16] main__time = main__time + main__tick [L17] main__i = main__i + 1 VAL [__return_main=0, main__i=3] [L14] COND TRUE main__i < 10 [L16] main__time = main__time + main__tick [L17] main__i = main__i + 1 VAL [__return_main=0, main__i=4] [L14] COND TRUE main__i < 10 [L16] main__time = main__time + main__tick [L17] main__i = main__i + 1 VAL [__return_main=0, main__i=5] [L14] COND TRUE main__i < 10 [L16] main__time = main__time + main__tick [L17] main__i = main__i + 1 VAL [__return_main=0, main__i=6] [L14] COND TRUE main__i < 10 [L16] main__time = main__time + main__tick [L17] main__i = main__i + 1 VAL [__return_main=0, main__i=7] [L14] COND TRUE main__i < 10 [L16] main__time = main__time + main__tick [L17] main__i = main__i + 1 VAL [__return_main=0, main__i=8] [L14] COND TRUE main__i < 10 [L16] main__time = main__time + main__tick [L17] main__i = main__i + 1 VAL [__return_main=0, main__i=9] [L14] COND TRUE main__i < 10 [L16] main__time = main__time + main__tick [L17] main__i = main__i + 1 VAL [__return_main=0, main__i=10] [L14] COND FALSE !(main__i < 10) [L23] int __tmp_1; [L24] __tmp_1 = main__time != 1.0 [L25] int __VERIFIER_assert__cond; [L26] __VERIFIER_assert__cond = __tmp_1 VAL [__VERIFIER_assert__cond=0, __return_main=0] [L27] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_main=0] [L29] reach_error() VAL [__return_main=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 182.20ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 106.6MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.57ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 105.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.33ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 104.6MB in the end (delta: 833.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 211.62ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 94.7MB in the end (delta: 9.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1522.71ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 55.4MB in the end (delta: 39.3MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. * Witness Printer took 3.78ms. Allocated memory is still 142.6MB. Free memory was 55.4MB in the beginning and 55.3MB in the end (delta: 15.8kB). 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 21:43:31,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/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_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/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_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/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_d05dfb46-4a11-4d92-9820-3f25c0df4756/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 ee159be1ed42c29b70080447b490f7a1aeb72331afc90e5794e0e8d61cb20d74 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 21:43:33,922 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 21:43:34,005 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-12-05 21:43:34,029 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 21:43:34,030 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 21:43:34,030 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 21:43:34,030 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 21:43:34,030 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 21:43:34,030 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 21:43:34,030 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 21:43:34,031 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 21:43:34,031 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 21:43:34,031 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 21:43:34,031 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 21:43:34,031 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 21:43:34,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 21:43:34,031 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 21:43:34,031 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 21:43:34,031 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 21:43:34,031 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 21:43:34,031 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 21:43:34,032 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 21:43:34,032 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 21:43:34,032 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 21:43:34,032 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 21:43:34,032 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 21:43:34,032 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 21:43:34,032 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-05 21:43:34,032 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 21:43:34,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:43:34,033 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 21:43:34,033 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 21:43:34,033 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 21:43:34,033 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-05 21:43:34,033 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 21:43:34,033 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-05 21:43:34,033 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_d05dfb46-4a11-4d92-9820-3f25c0df4756/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 -> ee159be1ed42c29b70080447b490f7a1aeb72331afc90e5794e0e8d61cb20d74 [2024-12-05 21:43:34,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 21:43:34,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 21:43:34,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 21:43:34,276 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 21:43:34,277 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 21:43:34,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c [2024-12-05 21:43:36,881 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/data/b25522ae9/738f237b86844dd5a83b596b94cb2950/FLAG834182c4d [2024-12-05 21:43:37,090 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 21:43:37,091 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c [2024-12-05 21:43:37,097 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/data/b25522ae9/738f237b86844dd5a83b596b94cb2950/FLAG834182c4d [2024-12-05 21:43:37,445 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/data/b25522ae9/738f237b86844dd5a83b596b94cb2950 [2024-12-05 21:43:37,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 21:43:37,448 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 21:43:37,449 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 21:43:37,449 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 21:43:37,452 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 21:43:37,453 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:43:37" (1/1) ... [2024-12-05 21:43:37,454 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51589e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:37, skipping insertion in model container [2024-12-05 21:43:37,454 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:43:37" (1/1) ... [2024-12-05 21:43:37,464 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 21:43:37,570 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_d05dfb46-4a11-4d92-9820-3f25c0df4756/sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c[721,734] [2024-12-05 21:43:37,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:43:37,584 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 21:43:37,595 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_d05dfb46-4a11-4d92-9820-3f25c0df4756/sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c[721,734] [2024-12-05 21:43:37,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:43:37,607 INFO L204 MainTranslator]: Completed translation [2024-12-05 21:43:37,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:37 WrapperNode [2024-12-05 21:43:37,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 21:43:37,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 21:43:37,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 21:43:37,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 21:43:37,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:37" (1/1) ... [2024-12-05 21:43:37,620 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:37" (1/1) ... [2024-12-05 21:43:37,631 INFO L138 Inliner]: procedures = 13, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2024-12-05 21:43:37,631 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 21:43:37,631 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 21:43:37,632 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 21:43:37,632 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 21:43:37,636 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:37" (1/1) ... [2024-12-05 21:43:37,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:37" (1/1) ... [2024-12-05 21:43:37,638 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:37" (1/1) ... [2024-12-05 21:43:37,638 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:37" (1/1) ... [2024-12-05 21:43:37,643 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:37" (1/1) ... [2024-12-05 21:43:37,643 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:37" (1/1) ... [2024-12-05 21:43:37,645 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:37" (1/1) ... [2024-12-05 21:43:37,645 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:37" (1/1) ... [2024-12-05 21:43:37,646 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:37" (1/1) ... [2024-12-05 21:43:37,647 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 21:43:37,648 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 21:43:37,648 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 21:43:37,648 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 21:43:37,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:37" (1/1) ... [2024-12-05 21:43:37,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:43:37,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 21:43:37,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 21:43:37,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 21:43:37,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 21:43:37,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 21:43:37,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 21:43:37,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 21:43:37,752 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 21:43:37,754 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 21:43:38,003 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-12-05 21:43:38,003 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 21:43:38,028 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 21:43:38,028 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 21:43:38,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:43:38 BoogieIcfgContainer [2024-12-05 21:43:38,029 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 21:43:38,030 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 21:43:38,030 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 21:43:38,040 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 21:43:38,041 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:43:38" (1/1) ... [2024-12-05 21:43:38,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 21:43:38,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:38,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-12-05 21:43:38,086 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-12-05 21:43:38,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-05 21:43:38,088 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:38,088 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:43:38,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:43:38,090 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:43:38,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-05 21:43:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:38,200 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:43:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:38,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-05 21:43:38,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:43:38,273 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 21:43:38,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-05 21:43:38,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:38,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2024-12-05 21:43:38,491 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2024-12-05 21:43:38,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-05 21:43:38,491 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:38,491 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:43:38,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:43:38,493 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:43:38,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-05 21:43:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:38,625 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:43:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:38,656 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-05 21:43:38,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:43:38,681 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 21:43:38,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-12-05 21:43:39,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:39,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2024-12-05 21:43:39,123 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2024-12-05 21:43:39,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-05 21:43:39,123 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:39,123 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:43:39,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:43:39,125 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:43:39,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-12-05 21:43:39,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:39,284 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:43:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:39,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-05 21:43:39,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:43:39,351 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 21:43:39,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-12-05 21:43:39,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:39,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2024-12-05 21:43:39,707 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2024-12-05 21:43:39,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 21:43:39,707 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:39,708 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:43:39,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:43:39,709 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:43:39,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-12-05 21:43:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:39,905 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:43:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:39,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-05 21:43:39,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:43:39,990 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 21:43:39,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-12-05 21:43:40,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:40,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2024-12-05 21:43:40,456 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2024-12-05 21:43:40,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 21:43:40,456 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:40,456 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:43:40,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:43:40,457 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:43:40,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-12-05 21:43:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:40,689 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:43:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:40,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-05 21:43:40,740 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:43:40,791 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 21:43:40,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-12-05 21:43:41,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:41,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2024-12-05 21:43:41,203 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2024-12-05 21:43:41,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-05 21:43:41,203 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:41,203 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:43:41,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:43:41,205 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:43:41,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-12-05 21:43:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:41,475 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:43:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:41,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-05 21:43:41,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:43:41,620 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 21:43:41,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-12-05 21:43:42,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:42,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2024-12-05 21:43:42,153 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-12-05 21:43:42,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-05 21:43:42,153 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:42,153 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:43:42,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:43:42,155 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:43:42,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-12-05 21:43:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:42,449 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:43:42,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:42,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-05 21:43:42,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:43:42,596 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:43:42,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-12-05 21:43:43,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:43,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2024-12-05 21:43:43,178 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-12-05 21:43:43,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-05 21:43:43,178 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:43,178 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:43:43,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:43:43,180 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:43:43,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-12-05 21:43:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:43,505 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:43:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:43,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-05 21:43:43,575 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:43:43,684 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:43:43,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-12-05 21:43:44,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:44,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2024-12-05 21:43:44,309 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2024-12-05 21:43:44,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-05 21:43:44,310 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:44,310 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:43:44,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:43:44,312 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:43:44,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-12-05 21:43:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:44,683 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:43:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:44,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-05 21:43:44,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:43:44,887 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:43:44,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-12-05 21:43:45,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:45,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2024-12-05 21:43:45,595 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2024-12-05 21:43:45,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-05 21:43:45,595 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:45,595 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:43:45,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:43:45,596 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:43:45,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-12-05 21:43:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:46,006 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:43:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:46,093 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-05 21:43:46,095 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:43:46,253 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:43:46,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-12-05 21:43:47,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:47,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 17 states and 18 transitions. [2024-12-05 21:43:47,086 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2024-12-05 21:43:47,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 21:43:47,087 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:47,087 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:43:47,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:43:47,088 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:43:47,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-12-05 21:43:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:47,687 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:43:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:52,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-05 21:43:52,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:45:52,312 WARN L286 SmtUtils]: Spent 5.71s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 21:47:55,974 WARN L286 SmtUtils]: Spent 5.90s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 21:48:04,967 WARN L286 SmtUtils]: Spent 5.29s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-05 21:49:28,330 WARN L286 SmtUtils]: Spent 9.62s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 21:49:40,285 WARN L286 SmtUtils]: Spent 11.94s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-05 21:49:46,786 WARN L286 SmtUtils]: Spent 6.50s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-05 21:53:24,599 WARN L286 SmtUtils]: Spent 20.63s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 21:53:35,988 WARN L286 SmtUtils]: Spent 11.39s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-05 21:56:14,780 WARN L286 SmtUtils]: Spent 18.02s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 21:56:31,129 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 54 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:56:31,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d05dfb46-4a11-4d92-9820-3f25c0df4756/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0