./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/interpolation.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_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3 --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 198a885d453136e0f485e10bae010eb2ed68236b2d57919bf162df9bdad27ee6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 03:02:52,099 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 03:02:52,156 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 03:02:52,160 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 03:02:52,161 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 03:02:52,182 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 03:02:52,182 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 03:02:52,183 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 03:02:52,183 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 03:02:52,183 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 03:02:52,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 03:02:52,183 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 03:02:52,183 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 03:02:52,184 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 03:02:52,184 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 03:02:52,184 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 03:02:52,184 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 03:02:52,184 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 03:02:52,184 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 03:02:52,184 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 03:02:52,184 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 03:02:52,184 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 03:02:52,184 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 03:02:52,185 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 03:02:52,185 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 03:02:52,185 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 03:02:52,185 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 03:02:52,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:02:52,185 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 03:02:52,185 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 03:02:52,185 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 03:02:52,185 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 03:02:52,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 03:02:52,186 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_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3 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 -> 198a885d453136e0f485e10bae010eb2ed68236b2d57919bf162df9bdad27ee6 [2024-11-25 03:02:52,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 03:02:52,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 03:02:52,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 03:02:52,499 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 03:02:52,500 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 03:02:52,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c [2024-11-25 03:02:55,622 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/data/75e7bdddf/8d6a572a7c7e499bb78a05c5b1d7d9fe/FLAG951bca351 [2024-11-25 03:02:55,875 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 03:02:55,876 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c [2024-11-25 03:02:55,883 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/data/75e7bdddf/8d6a572a7c7e499bb78a05c5b1d7d9fe/FLAG951bca351 [2024-11-25 03:02:55,898 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/data/75e7bdddf/8d6a572a7c7e499bb78a05c5b1d7d9fe [2024-11-25 03:02:55,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 03:02:55,902 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 03:02:55,904 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 03:02:55,904 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 03:02:55,910 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 03:02:55,911 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:02:55" (1/1) ... [2024-11-25 03:02:55,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55dfe8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:02:55, skipping insertion in model container [2024-11-25 03:02:55,913 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:02:55" (1/1) ... [2024-11-25 03:02:55,934 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 03:02:56,140 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_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c[1306,1319] [2024-11-25 03:02:56,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:02:56,163 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 03:02:56,188 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_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c[1306,1319] [2024-11-25 03:02:56,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:02:56,212 INFO L204 MainTranslator]: Completed translation [2024-11-25 03:02:56,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:02:56 WrapperNode [2024-11-25 03:02:56,213 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 03:02:56,214 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 03:02:56,214 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 03:02:56,215 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 03:02:56,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:02:56" (1/1) ... [2024-11-25 03:02:56,231 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:02:56" (1/1) ... [2024-11-25 03:02:56,252 INFO L138 Inliner]: procedures = 18, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 101 [2024-11-25 03:02:56,252 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 03:02:56,253 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 03:02:56,253 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 03:02:56,256 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 03:02:56,264 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:02:56" (1/1) ... [2024-11-25 03:02:56,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:02:56" (1/1) ... [2024-11-25 03:02:56,269 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:02:56" (1/1) ... [2024-11-25 03:02:56,269 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:02:56" (1/1) ... [2024-11-25 03:02:56,277 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:02:56" (1/1) ... [2024-11-25 03:02:56,278 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:02:56" (1/1) ... [2024-11-25 03:02:56,280 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:02:56" (1/1) ... [2024-11-25 03:02:56,281 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:02:56" (1/1) ... [2024-11-25 03:02:56,282 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:02:56" (1/1) ... [2024-11-25 03:02:56,284 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 03:02:56,285 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 03:02:56,285 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 03:02:56,285 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 03:02:56,286 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:02:56" (1/1) ... [2024-11-25 03:02:56,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:02:56,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 03:02:56,331 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 03:02:56,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 03:02:56,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 03:02:56,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 03:02:56,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 03:02:56,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-25 03:02:56,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 03:02:56,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 03:02:56,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-25 03:02:56,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 03:02:56,448 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 03:02:56,450 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 03:02:56,586 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-25 03:02:56,586 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 03:02:56,621 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 03:02:56,622 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 03:02:56,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:02:56 BoogieIcfgContainer [2024-11-25 03:02:56,623 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 03:02:56,624 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 03:02:56,624 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 03:02:56,637 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 03:02:56,638 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:02:56" (1/1) ... [2024-11-25 03:02:56,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 03:02:56,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:02:56,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2024-11-25 03:02:56,709 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2024-11-25 03:02:56,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-25 03:02:56,713 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:02:56,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:02:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:02:57,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:02:57,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:02:57,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2024-11-25 03:02:57,183 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2024-11-25 03:02:57,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-25 03:02:57,183 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:02:57,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:02:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:02:57,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:02:57,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:02:57,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2024-11-25 03:02:57,404 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2024-11-25 03:02:57,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-25 03:02:57,404 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:02:57,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:02:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:02:57,439 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:02:57,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:02:57,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:02:57,519 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:02:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:02:57,567 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2024-11-25 03:02:57,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 03:02:57 ImpRootNode [2024-11-25 03:02:57,594 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 03:02:57,595 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 03:02:57,595 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 03:02:57,595 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 03:02:57,596 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:02:56" (3/4) ... [2024-11-25 03:02:57,598 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 03:02:57,599 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 03:02:57,600 INFO L158 Benchmark]: Toolchain (without parser) took 1697.65ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 89.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2024-11-25 03:02:57,600 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:02:57,601 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.93ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.2MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 03:02:57,601 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.36ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 79.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:02:57,602 INFO L158 Benchmark]: Boogie Preprocessor took 30.88ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 78.8MB in the end (delta: 897.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:02:57,602 INFO L158 Benchmark]: RCFGBuilder took 339.02ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 67.3MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 03:02:57,602 INFO L158 Benchmark]: CodeCheck took 969.73ms. Allocated memory is still 117.4MB. Free memory was 67.3MB in the beginning and 90.3MB in the end (delta: -23.0MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2024-11-25 03:02:57,603 INFO L158 Benchmark]: Witness Printer took 4.66ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 89.7MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:02:57,605 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, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, 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, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 28 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 145 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, 0.3s 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 23, overapproximation of someBinaryFLOATComparisonOperation at line 33, overapproximation of someBinaryFLOATComparisonOperation at line 21, overapproximation of someBinaryDOUBLEComparisonOperation at line 38, overapproximation of to_real at line 17, overapproximation of someBinaryArithmeticFLOAToperation at line 36. Possible FailurePath: [L1] int __return_main; [L14] int main__i; [L15] float main__z; [L16] float main__t; [L17] float main__min[5] = { 5, 10, 12, 30, 150 }; [L18] float main__max[5] = { 10, 12, 30, 150, 300 }; [L19] main__t = __VERIFIER_nondet_float() [L20] int main____CPAchecker_TMP_0; [L21] EXPR main__min[0] VAL [__return_main=0, main__max={27378:0}] [L21] COND TRUE main__t >= (main__min[0]) [L23] EXPR main__max[4UL] VAL [__return_main=0, main__max={27378:0}] [L23] COND TRUE main__t <= (main__max[4UL]) [L25] main____CPAchecker_TMP_0 = 1 VAL [__return_main=0, main____CPAchecker_TMP_0=1, main__max={27378:0}] [L27] COND TRUE main____CPAchecker_TMP_0 != 0 [L29] main__i = 0 VAL [__return_main=0, main__i=0, main__max={27378:0}] [L31] COND TRUE main__i < 5UL [L33] EXPR main__max[main__i] VAL [__return_main=0, main__i=0, main__max={27378:0}] [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_main=0, main__i=0, main__max={27378:0}] [L38] COND FALSE !(main__z >= 0.0) VAL [__return_main=0, main__i=0, main__max={27378:0}] [L63] main____CPAchecker_TMP_1 = 0 VAL [__return_main=0, main____CPAchecker_TMP_1=0, main__i=0, main__max={27378:0}] [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_main=0, main__i=0, main__max={27378:0}] [L49] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_main=0, main__i=0, main__max={27378:0}] [L51] reach_error() VAL [__return_main=0, main__i=0, main__max={27378:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.93ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.2MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.36ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 79.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.88ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 78.8MB in the end (delta: 897.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 339.02ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 67.3MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 969.73ms. Allocated memory is still 117.4MB. Free memory was 67.3MB in the beginning and 90.3MB in the end (delta: -23.0MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. * Witness Printer took 4.66ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 89.7MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 03:02:57,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/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_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3 --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 198a885d453136e0f485e10bae010eb2ed68236b2d57919bf162df9bdad27ee6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 03:03:00,226 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 03:03:00,360 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-11-25 03:03:00,405 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 03:03:00,406 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 03:03:00,406 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 03:03:00,407 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 03:03:00,407 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 03:03:00,407 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 03:03:00,408 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 03:03:00,408 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 03:03:00,408 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 03:03:00,408 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 03:03:00,408 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 03:03:00,408 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 03:03:00,408 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 03:03:00,408 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 03:03:00,408 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 03:03:00,408 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 03:03:00,408 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 03:03:00,409 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 03:03:00,409 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 03:03:00,409 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 03:03:00,409 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 03:03:00,409 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 03:03:00,409 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 03:03:00,410 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 03:03:00,411 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 03:03:00,411 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 03:03:00,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:03:00,411 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 03:03:00,411 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 03:03:00,412 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 03:03:00,412 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 03:03:00,412 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 03:03:00,412 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 03:03:00,412 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_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3 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 -> 198a885d453136e0f485e10bae010eb2ed68236b2d57919bf162df9bdad27ee6 [2024-11-25 03:03:00,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 03:03:00,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 03:03:00,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 03:03:00,738 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 03:03:00,738 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 03:03:00,740 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c [2024-11-25 03:03:03,803 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/data/1ad8176b8/65acdf0bc7cb4b22ad02e95c48d415ce/FLAG240de747f [2024-11-25 03:03:04,025 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 03:03:04,026 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c [2024-11-25 03:03:04,033 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/data/1ad8176b8/65acdf0bc7cb4b22ad02e95c48d415ce/FLAG240de747f [2024-11-25 03:03:04,362 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/data/1ad8176b8/65acdf0bc7cb4b22ad02e95c48d415ce [2024-11-25 03:03:04,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 03:03:04,366 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 03:03:04,367 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 03:03:04,367 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 03:03:04,372 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 03:03:04,373 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:03:04" (1/1) ... [2024-11-25 03:03:04,374 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63e6a2b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:04, skipping insertion in model container [2024-11-25 03:03:04,374 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:03:04" (1/1) ... [2024-11-25 03:03:04,390 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 03:03:04,581 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_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c[1306,1319] [2024-11-25 03:03:04,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:03:04,612 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 03:03:04,644 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_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c[1306,1319] [2024-11-25 03:03:04,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:03:04,673 INFO L204 MainTranslator]: Completed translation [2024-11-25 03:03:04,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:04 WrapperNode [2024-11-25 03:03:04,674 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 03:03:04,676 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 03:03:04,676 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 03:03:04,676 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 03:03:04,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:04" (1/1) ... [2024-11-25 03:03:04,697 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:04" (1/1) ... [2024-11-25 03:03:04,719 INFO L138 Inliner]: procedures = 19, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 102 [2024-11-25 03:03:04,722 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 03:03:04,723 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 03:03:04,723 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 03:03:04,723 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 03:03:04,731 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:04" (1/1) ... [2024-11-25 03:03:04,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:04" (1/1) ... [2024-11-25 03:03:04,738 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:04" (1/1) ... [2024-11-25 03:03:04,738 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:04" (1/1) ... [2024-11-25 03:03:04,757 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:04" (1/1) ... [2024-11-25 03:03:04,761 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:04" (1/1) ... [2024-11-25 03:03:04,763 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:04" (1/1) ... [2024-11-25 03:03:04,767 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:04" (1/1) ... [2024-11-25 03:03:04,769 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:04" (1/1) ... [2024-11-25 03:03:04,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 03:03:04,775 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 03:03:04,775 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 03:03:04,776 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 03:03:04,780 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:04" (1/1) ... [2024-11-25 03:03:04,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:03:04,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 03:03:04,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 03:03:04,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 03:03:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 03:03:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-25 03:03:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 03:03:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 03:03:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-25 03:03:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 03:03:04,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 03:03:04,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 03:03:04,944 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 03:03:04,946 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 03:03:08,708 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-25 03:03:08,708 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 03:03:08,749 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 03:03:08,750 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 03:03:08,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:03:08 BoogieIcfgContainer [2024-11-25 03:03:08,750 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 03:03:08,751 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 03:03:08,751 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 03:03:08,760 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 03:03:08,760 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:03:08" (1/1) ... [2024-11-25 03:03:08,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 03:03:08,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:03:08,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2024-11-25 03:03:08,813 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2024-11-25 03:03:08,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-25 03:03:08,815 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:03:08,816 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:03:08,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:03:08,820 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:03:08,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 03:03:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:03:08,988 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:03:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:03:09,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-25 03:03:09,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:03:09,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:03:09,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 03:03:09,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:03:09,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2024-11-25 03:03:09,391 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2024-11-25 03:03:09,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-25 03:03:09,391 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:03:09,392 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:03:09,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:03:09,394 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:03:09,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-25 03:03:09,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:03:09,578 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:03:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:03:09,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-25 03:03:09,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:03:09,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:03:09,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-25 03:03:09,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:03:09,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2024-11-25 03:03:09,866 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2024-11-25 03:03:09,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-25 03:03:09,866 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:03:09,866 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:03:09,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:03:09,870 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:03:09,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-25 03:03:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:03:10,757 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:03:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:03:18,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-25 03:03:18,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:03:20,743 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-25 03:03:20,744 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 [2024-11-25 03:04:14,200 WARN L286 SmtUtils]: Spent 23.05s on a formula simplification. DAG size of input: 39 DAG size of output: 30 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 03:04:19,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:04:19,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-25 03:04:38,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-25 03:04:41,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-25 03:05:25,820 WARN L286 SmtUtils]: Spent 6.85s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 03:05:35,832 WARN L539 Checker$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] [2024-11-25 03:05:41,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.08s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-25 03:05:51,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-25 03:05:55,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-25 03:05:57,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-25 03:05:59,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-25 03:06:06,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.42s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-25 03:06:06,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:06:06,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 25 states and 38 transitions. [2024-11-25 03:06:06,715 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:06:06,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-25 03:06:06,717 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:06:06,718 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:06:06,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:06:06,722 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:06:06,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-25 03:06:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:06:06,869 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:06:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:06:06,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-25 03:06:06,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:06:10,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:06:10,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-25 03:06:33,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:06:33,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2024-11-25 03:06:33,753 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2024-11-25 03:06:33,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-25 03:06:33,753 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:06:33,754 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:06:33,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:06:33,756 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:06:33,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-25 03:06:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:06:34,678 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:06:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:06:40,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-25 03:06:40,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:07:06,206 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-25 03:07:06,207 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 [2024-11-25 03:07:57,192 WARN L286 SmtUtils]: Spent 7.55s 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) [2024-11-25 03:08:06,525 WARN L286 SmtUtils]: Spent 5.58s 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) [2024-11-25 03:09:26,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:09:26,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-25 03:10:39,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-25 03:10:49,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-25 03:10:54,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.16s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-25 03:10:55,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-25 03:11:05,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.53s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-25 03:11:08,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-25 03:11:08,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:11:08,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 29 states and 44 transitions. [2024-11-25 03:11:08,209 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2024-11-25 03:11:08,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-25 03:11:08,210 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:11:08,210 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:11:08,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:11:08,215 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:11:08,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-25 03:11:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:11:08,652 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:11:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:11:08,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-25 03:11:08,801 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:11:17,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:11:17,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-25 03:11:33,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:11:33,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 30 states and 46 transitions. [2024-11-25 03:11:33,040 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2024-11-25 03:11:33,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-25 03:11:33,040 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:11:33,040 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:11:33,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:11:33,044 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:11:33,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-25 03:11:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:11:33,874 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:11:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:11:39,898 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-25 03:11:39,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:12:37,311 INFO L349 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2024-11-25 03:12:37,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 202 treesize of output 98 [2024-11-25 03:15:15,816 WARN L286 SmtUtils]: Spent 23.04s on a formula simplification. DAG size of input: 46 DAG size of output: 37 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-25 03:15:18,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:15:18,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d3a9c96-3dbf-4d7a-af7a-e6757c6bfc9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0