./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/interpolation.c.v+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_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/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_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/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_a4e89611-64a9-48f2-a736-b5326bd68eb8/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 a8b1eb5a7109aada0c5a8e0cf18025c738de8d1a2cd1a38b7a389d7c7a6495a7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:38:09,874 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:38:09,942 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 05:38:09,946 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 05:38:09,946 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 05:38:09,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:38:09,968 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:38:09,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:38:09,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:38:09,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:38:09,969 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:38:09,970 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:38:09,970 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 05:38:09,970 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 05:38:09,970 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 05:38:09,970 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:38:09,970 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:38:09,970 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:38:09,970 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:38:09,971 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 05:38:09,971 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:38:09,971 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:38:09,971 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:38:09,971 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:38:09,971 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:38:09,971 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:38:09,971 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:38:09,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:38:09,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:38:09,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:38:09,972 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:38:09,972 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 05:38:09,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 05:38:09,972 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_a4e89611-64a9-48f2-a736-b5326bd68eb8/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 -> a8b1eb5a7109aada0c5a8e0cf18025c738de8d1a2cd1a38b7a389d7c7a6495a7 [2024-12-06 05:38:10,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:38:10,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:38:10,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:38:10,227 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:38:10,228 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:38:10,229 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c [2024-12-06 05:38:13,002 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/data/ea88ae047/d2dee6cc6d3c462a85f6cc9ee680c2c1/FLAG8e1204967 [2024-12-06 05:38:13,256 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:38:13,257 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c [2024-12-06 05:38:13,266 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/data/ea88ae047/d2dee6cc6d3c462a85f6cc9ee680c2c1/FLAG8e1204967 [2024-12-06 05:38:13,563 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/data/ea88ae047/d2dee6cc6d3c462a85f6cc9ee680c2c1 [2024-12-06 05:38:13,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:38:13,567 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:38:13,568 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:38:13,568 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:38:13,573 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:38:13,573 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:38:13" (1/1) ... [2024-12-06 05:38:13,574 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a2c28b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:13, skipping insertion in model container [2024-12-06 05:38:13,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:38:13" (1/1) ... [2024-12-06 05:38:13,590 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:38:13,753 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_a4e89611-64a9-48f2-a736-b5326bd68eb8/sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c[1314,1327] [2024-12-06 05:38:13,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:38:13,771 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:38:13,789 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_a4e89611-64a9-48f2-a736-b5326bd68eb8/sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c[1314,1327] [2024-12-06 05:38:13,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:38:13,809 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:38:13,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:13 WrapperNode [2024-12-06 05:38:13,809 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:38:13,810 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:38:13,810 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:38:13,810 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:38:13,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:13" (1/1) ... [2024-12-06 05:38:13,824 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:13" (1/1) ... [2024-12-06 05:38:13,841 INFO L138 Inliner]: procedures = 18, calls = 37, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 110 [2024-12-06 05:38:13,842 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:38:13,842 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:38:13,843 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:38:13,843 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:38:13,849 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:13" (1/1) ... [2024-12-06 05:38:13,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:13" (1/1) ... [2024-12-06 05:38:13,851 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:13" (1/1) ... [2024-12-06 05:38:13,851 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:13" (1/1) ... [2024-12-06 05:38:13,860 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:13" (1/1) ... [2024-12-06 05:38:13,861 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:13" (1/1) ... [2024-12-06 05:38:13,863 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:13" (1/1) ... [2024-12-06 05:38:13,864 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:13" (1/1) ... [2024-12-06 05:38:13,865 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:13" (1/1) ... [2024-12-06 05:38:13,867 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:38:13,868 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:38:13,868 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:38:13,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:38:13,869 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:13" (1/1) ... [2024-12-06 05:38:13,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:38:13,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:38:13,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:38:13,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:38:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:38:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 05:38:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-06 05:38:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-12-06 05:38:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:38:13,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:38:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-12-06 05:38:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 05:38:14,000 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:38:14,001 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:38:14,140 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-12-06 05:38:14,140 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:38:14,158 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:38:14,158 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 05:38:14,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:38:14 BoogieIcfgContainer [2024-12-06 05:38:14,158 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:38:14,159 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:38:14,159 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:38:14,167 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:38:14,167 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:38:14" (1/1) ... [2024-12-06 05:38:14,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:38:14,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:38:14,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 16 states and 23 transitions. [2024-12-06 05:38:14,234 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 23 transitions. [2024-12-06 05:38:14,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 05:38:14,237 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:38:14,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:38:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:38:14,498 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 05:38:14,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:38:14,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2024-12-06 05:38:14,581 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-12-06 05:38:14,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 05:38:14,581 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:38:14,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:38:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:38:14,678 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 05:38:14,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:38:14,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2024-12-06 05:38:14,722 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2024-12-06 05:38:14,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 05:38:14,722 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:38:14,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:38:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:38:14,744 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:38:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:38:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:38:14,807 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:38:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:38:14,842 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2024-12-06 05:38:14,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:38:14 ImpRootNode [2024-12-06 05:38:14,872 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:38:14,872 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:38:14,872 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:38:14,872 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:38:14,873 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:38:14" (3/4) ... [2024-12-06 05:38:14,875 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 05:38:14,875 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:38:14,876 INFO L158 Benchmark]: Toolchain (without parser) took 1309.34ms. Allocated memory is still 142.6MB. Free memory was 118.0MB in the beginning and 114.2MB in the end (delta: 3.8MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2024-12-06 05:38:14,877 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:38:14,877 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.35ms. Allocated memory is still 142.6MB. Free memory was 118.0MB in the beginning and 106.5MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:38:14,877 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.83ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 105.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:38:14,878 INFO L158 Benchmark]: Boogie Preprocessor took 24.52ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 104.1MB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:38:14,878 INFO L158 Benchmark]: RCFGBuilder took 290.55ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 91.8MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:38:14,879 INFO L158 Benchmark]: CodeCheck took 712.69ms. Allocated memory is still 142.6MB. Free memory was 91.5MB in the beginning and 114.7MB in the end (delta: -23.2MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2024-12-06 05:38:14,879 INFO L158 Benchmark]: Witness Printer took 3.40ms. Allocated memory is still 142.6MB. Free memory was 114.7MB in the beginning and 114.2MB in the end (delta: 589.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:38:14,881 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, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 52 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 28 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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: 51]: 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 24, overapproximation of someBinaryFLOATComparisonOperation at line 22, overapproximation of someBinaryFLOATComparisonOperation at line 33, overapproximation of someBinaryDOUBLEComparisonOperation at line 38, overapproximation of to_real at line 18, overapproximation of someBinaryArithmeticFLOAToperation at line 36. Possible FailurePath: [L1] int __return_main; [L12] int __return_125; [L15] int main__i; [L16] float main__z; [L17] float main__t; [L18] float main__min[5] = { 5, 10, 12, 30, 150 }; [L19] float main__max[5] = { 10, 12, 30, 150, 300 }; [L20] main__t = __VERIFIER_nondet_float() [L21] int main____CPAchecker_TMP_0; [L22] EXPR main__min[0] VAL [__return_125=0, __return_main=0, main__max={2333:0}] [L22] COND TRUE main__t >= (main__min[0]) [L24] EXPR main__max[4UL] VAL [__return_125=0, __return_main=0, main__max={2333:0}] [L24] COND TRUE main__t <= (main__max[4UL]) [L26] main____CPAchecker_TMP_0 = 1 VAL [__return_125=0, __return_main=0, main____CPAchecker_TMP_0=1, main__max={2333:0}] [L27] COND TRUE main____CPAchecker_TMP_0 != 0 [L29] main__i = 0 VAL [__return_125=0, __return_main=0, main__i=0, main__max={2333:0}] [L31] COND TRUE main__i < 5UL [L33] EXPR main__max[main__i] VAL [__return_125=0, __return_main=0, main__i=0, main__max={2333:0}] [L33] COND TRUE main__t <= (main__max[main__i]) [L36] EXPR main__min[main__i] [L36] EXPR main__max[main__i] [L36] EXPR main__min[main__i] [L36] main__z = (main__t - (main__min[main__i])) / ((main__max[main__i]) - (main__min[main__i])) [L37] int main____CPAchecker_TMP_1; VAL [__return_125=0, __return_main=0, main__i=0, main__max={2333:0}] [L38] COND FALSE !(main__z >= 0.0) VAL [__return_125=0, __return_main=0, main__i=0, main__max={2333:0}] [L64] main____CPAchecker_TMP_1 = 0 VAL [__return_125=0, __return_main=0, main____CPAchecker_TMP_1=0, main__i=0, main__max={2333:0}] [L45] int __tmp_1; [L46] __tmp_1 = main____CPAchecker_TMP_1 [L47] int __VERIFIER_assert__cond; [L48] __VERIFIER_assert__cond = __tmp_1 VAL [__VERIFIER_assert__cond=0, __return_125=0, __return_main=0, main__i=0, main__max={2333:0}] [L49] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_125=0, __return_main=0, main__i=0, main__max={2333:0}] [L51] reach_error() VAL [__return_125=0, __return_main=0, main__i=0, main__max={2333:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.35ms. Allocated memory is still 142.6MB. Free memory was 118.0MB in the beginning and 106.5MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.83ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 105.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.52ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 104.1MB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 290.55ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 91.8MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 712.69ms. Allocated memory is still 142.6MB. Free memory was 91.5MB in the beginning and 114.7MB in the end (delta: -23.2MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * Witness Printer took 3.40ms. Allocated memory is still 142.6MB. Free memory was 114.7MB in the beginning and 114.2MB in the end (delta: 589.1kB). 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 05:38:14,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/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_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/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_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/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_a4e89611-64a9-48f2-a736-b5326bd68eb8/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 a8b1eb5a7109aada0c5a8e0cf18025c738de8d1a2cd1a38b7a389d7c7a6495a7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:38:17,125 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:38:17,215 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-12-06 05:38:17,253 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:38:17,254 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:38:17,254 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:38:17,255 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:38:17,255 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:38:17,255 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:38:17,255 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:38:17,255 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 05:38:17,255 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 05:38:17,256 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:38:17,256 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:38:17,256 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:38:17,256 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:38:17,256 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 05:38:17,256 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 05:38:17,256 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 05:38:17,256 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 05:38:17,257 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:38:17,257 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:38:17,257 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:38:17,257 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:38:17,257 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:38:17,257 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:38:17,257 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:38:17,257 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 05:38:17,258 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:38:17,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:38:17,258 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:38:17,258 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:38:17,258 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:38:17,258 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 05:38:17,258 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:38:17,258 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 05:38:17,259 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_a4e89611-64a9-48f2-a736-b5326bd68eb8/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 -> a8b1eb5a7109aada0c5a8e0cf18025c738de8d1a2cd1a38b7a389d7c7a6495a7 [2024-12-06 05:38:17,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:38:17,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:38:17,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:38:17,543 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:38:17,544 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:38:17,545 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c [2024-12-06 05:38:20,347 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/data/2f6c9c085/40b6ba7f68ec4e77a3ba3f81dbb6b7fd/FLAG4f5183493 [2024-12-06 05:38:20,542 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:38:20,543 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c [2024-12-06 05:38:20,551 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/data/2f6c9c085/40b6ba7f68ec4e77a3ba3f81dbb6b7fd/FLAG4f5183493 [2024-12-06 05:38:20,901 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/data/2f6c9c085/40b6ba7f68ec4e77a3ba3f81dbb6b7fd [2024-12-06 05:38:20,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:38:20,904 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:38:20,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:38:20,905 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:38:20,909 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:38:20,910 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:38:20" (1/1) ... [2024-12-06 05:38:20,910 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ecb814a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:20, skipping insertion in model container [2024-12-06 05:38:20,910 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:38:20" (1/1) ... [2024-12-06 05:38:20,923 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:38:21,076 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_a4e89611-64a9-48f2-a736-b5326bd68eb8/sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c[1314,1327] [2024-12-06 05:38:21,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:38:21,095 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:38:21,116 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_a4e89611-64a9-48f2-a736-b5326bd68eb8/sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c[1314,1327] [2024-12-06 05:38:21,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:38:21,133 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:38:21,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:21 WrapperNode [2024-12-06 05:38:21,134 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:38:21,135 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:38:21,135 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:38:21,135 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:38:21,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:21" (1/1) ... [2024-12-06 05:38:21,147 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:21" (1/1) ... [2024-12-06 05:38:21,166 INFO L138 Inliner]: procedures = 19, calls = 37, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 111 [2024-12-06 05:38:21,167 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:38:21,168 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:38:21,168 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:38:21,168 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:38:21,175 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:21" (1/1) ... [2024-12-06 05:38:21,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:21" (1/1) ... [2024-12-06 05:38:21,178 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:21" (1/1) ... [2024-12-06 05:38:21,178 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:21" (1/1) ... [2024-12-06 05:38:21,188 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:21" (1/1) ... [2024-12-06 05:38:21,190 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:21" (1/1) ... [2024-12-06 05:38:21,192 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:21" (1/1) ... [2024-12-06 05:38:21,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:21" (1/1) ... [2024-12-06 05:38:21,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:21" (1/1) ... [2024-12-06 05:38:21,196 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:38:21,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:38:21,197 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:38:21,197 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:38:21,198 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:38:21" (1/1) ... [2024-12-06 05:38:21,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:38:21,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:38:21,231 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:38:21,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:38:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:38:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-12-06 05:38:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 05:38:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-06 05:38:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-12-06 05:38:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:38:21,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:38:21,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 05:38:21,336 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:38:21,338 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:38:22,994 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-12-06 05:38:22,995 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:38:23,022 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:38:23,022 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 05:38:23,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:38:23 BoogieIcfgContainer [2024-12-06 05:38:23,023 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:38:23,023 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:38:23,023 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:38:23,039 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:38:23,039 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:38:23" (1/1) ... [2024-12-06 05:38:23,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:38:23,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:38:23,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 16 states and 23 transitions. [2024-12-06 05:38:23,102 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 23 transitions. [2024-12-06 05:38:23,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 05:38:23,105 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:38:23,106 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:38:23,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:38:23,108 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:38:23,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 05:38:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:38:23,271 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 05:38:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:38:23,331 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-06 05:38:23,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:38:23,427 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 05:38:23,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 05:38:23,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:38:23,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2024-12-06 05:38:23,669 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2024-12-06 05:38:23,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 05:38:23,669 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:38:23,670 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:38:23,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:38:23,672 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:38:23,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-06 05:38:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:38:23,833 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 05:38:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:38:23,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-06 05:38:23,965 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:38:24,006 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 05:38:24,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-12-06 05:38:24,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:38:24,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2024-12-06 05:38:24,082 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2024-12-06 05:38:24,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 05:38:24,082 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:38:24,083 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:38:24,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:38:24,085 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:38:24,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-12-06 05:38:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:38:24,971 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 05:38:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:38:33,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-06 05:38:33,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:38:35,911 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-06 05:38:35,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 155 treesize of output 75 [2024-12-06 05:38:41,300 WARN L286 SmtUtils]: Spent 5.38s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-06 05:39:20,029 WARN L286 SmtUtils]: Spent 8.55s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 05:39:28,195 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 05:39:28,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-12-06 05:39:46,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-06 05:39:51,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-06 05:40:48,174 WARN L286 SmtUtils]: Spent 10.53s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 05:40:58,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-06 05:41:01,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.07s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-06 05:41:11,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-06 05:41:16,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-06 05:41:19,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.67s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-06 05:41:27,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.99s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-06 05:41:27,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:41:27,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions. [2024-12-06 05:41:27,795 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2024-12-06 05:41:27,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 05:41:27,796 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:41:27,796 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:41:27,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:41:27,798 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:41:27,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-12-06 05:41:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:41:28,672 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 05:41:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:41:38,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-06 05:41:38,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:42:22,425 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-06 05:42:22,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 178 treesize of output 86 [2024-12-06 05:42:27,840 WARN L286 SmtUtils]: Spent 5.41s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-06 05:43:22,433 WARN L286 SmtUtils]: Spent 9.23s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-06 05:43:34,599 WARN L286 SmtUtils]: Spent 9.13s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-06 05:45:47,265 WARN L286 SmtUtils]: Spent 16.19s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 05:45:52,673 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 05:45:52,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4e89611-64a9-48f2-a736-b5326bd68eb8/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-12-06 05:48:45,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-06 05:48:56,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.99s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]