./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_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/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_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/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_7e05cb0b-27ca-44fa-b207-f23ac03358ed/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_7e05cb0b-27ca-44fa-b207-f23ac03358ed/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 198a885d453136e0f485e10bae010eb2ed68236b2d57919bf162df9bdad27ee6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 21:48:49,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 21:48:49,928 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-05 21:48:49,932 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 21:48:49,933 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 21:48:49,951 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 21:48:49,952 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 21:48:49,952 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 21:48:49,953 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 21:48:49,953 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 21:48:49,953 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 21:48:49,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 21:48:49,953 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 21:48:49,953 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 21:48:49,954 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 21:48:49,954 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 21:48:49,954 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 21:48:49,954 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 21:48:49,954 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 21:48:49,954 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 21:48:49,954 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 21:48:49,954 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 21:48:49,954 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 21:48:49,954 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 21:48:49,954 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 21:48:49,955 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 21:48:49,955 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 21:48:49,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:48:49,955 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 21:48:49,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 21:48:49,955 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 21:48:49,955 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 21:48:49,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 21:48:49,955 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_7e05cb0b-27ca-44fa-b207-f23ac03358ed/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 -> 198a885d453136e0f485e10bae010eb2ed68236b2d57919bf162df9bdad27ee6 [2024-12-05 21:48:50,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 21:48:50,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 21:48:50,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 21:48:50,194 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 21:48:50,195 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 21:48:50,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c [2024-12-05 21:48:52,924 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/data/f8dca0f46/7ed8bd837dac444bbd063df71b86ba61/FLAG034403ca8 [2024-12-05 21:48:53,114 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 21:48:53,114 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c [2024-12-05 21:48:53,121 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/data/f8dca0f46/7ed8bd837dac444bbd063df71b86ba61/FLAG034403ca8 [2024-12-05 21:48:53,135 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/data/f8dca0f46/7ed8bd837dac444bbd063df71b86ba61 [2024-12-05 21:48:53,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 21:48:53,138 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 21:48:53,139 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 21:48:53,139 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 21:48:53,143 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 21:48:53,143 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:48:53" (1/1) ... [2024-12-05 21:48:53,144 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69c5a098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:53, skipping insertion in model container [2024-12-05 21:48:53,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:48:53" (1/1) ... [2024-12-05 21:48:53,156 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 21:48:53,279 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_7e05cb0b-27ca-44fa-b207-f23ac03358ed/sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c[1306,1319] [2024-12-05 21:48:53,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:48:53,294 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 21:48:53,310 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_7e05cb0b-27ca-44fa-b207-f23ac03358ed/sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c[1306,1319] [2024-12-05 21:48:53,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:48:53,325 INFO L204 MainTranslator]: Completed translation [2024-12-05 21:48:53,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:53 WrapperNode [2024-12-05 21:48:53,326 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 21:48:53,326 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 21:48:53,326 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 21:48:53,327 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 21:48:53,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:53" (1/1) ... [2024-12-05 21:48:53,337 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:53" (1/1) ... [2024-12-05 21:48:53,351 INFO L138 Inliner]: procedures = 18, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 101 [2024-12-05 21:48:53,352 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 21:48:53,352 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 21:48:53,352 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 21:48:53,352 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 21:48:53,358 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:53" (1/1) ... [2024-12-05 21:48:53,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:53" (1/1) ... [2024-12-05 21:48:53,360 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:53" (1/1) ... [2024-12-05 21:48:53,360 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:53" (1/1) ... [2024-12-05 21:48:53,367 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:53" (1/1) ... [2024-12-05 21:48:53,367 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:53" (1/1) ... [2024-12-05 21:48:53,369 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:53" (1/1) ... [2024-12-05 21:48:53,370 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:53" (1/1) ... [2024-12-05 21:48:53,371 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:53" (1/1) ... [2024-12-05 21:48:53,373 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 21:48:53,375 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 21:48:53,375 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 21:48:53,375 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 21:48:53,376 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:53" (1/1) ... [2024-12-05 21:48:53,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:48:53,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 21:48:53,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 21:48:53,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 21:48:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 21:48:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 21:48:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-05 21:48:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-12-05 21:48:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 21:48:53,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 21:48:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-12-05 21:48:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-05 21:48:53,480 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 21:48:53,482 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 21:48:53,605 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-12-05 21:48:53,606 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 21:48:53,626 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 21:48:53,627 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 21:48:53,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:48:53 BoogieIcfgContainer [2024-12-05 21:48:53,627 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 21:48:53,627 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 21:48:53,628 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 21:48:53,636 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 21:48:53,636 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:48:53" (1/1) ... [2024-12-05 21:48:53,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 21:48:53,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:48:53,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2024-12-05 21:48:53,682 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2024-12-05 21:48:53,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-05 21:48:53,684 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:48:53,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:48:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:48:53,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:48:53,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:48:53,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2024-12-05 21:48:53,972 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2024-12-05 21:48:53,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-05 21:48:53,972 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:48:53,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:48:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:48:54,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:48:54,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:48:54,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2024-12-05 21:48:54,089 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2024-12-05 21:48:54,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-05 21:48:54,090 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:48:54,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:48:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:48:54,108 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 21:48:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:48:54,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:48:54,160 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 21:48:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:48:54,181 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2024-12-05 21:48:54,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 09:48:54 ImpRootNode [2024-12-05 21:48:54,209 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 21:48:54,210 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 21:48:54,210 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 21:48:54,210 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 21:48:54,211 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:48:53" (3/4) ... [2024-12-05 21:48:54,213 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 21:48:54,214 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 21:48:54,215 INFO L158 Benchmark]: Toolchain (without parser) took 1076.54ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 60.0MB in the end (delta: 56.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-12-05 21:48:54,215 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:48:54,215 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.79ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 105.3MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 21:48:54,216 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.22ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 104.0MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 21:48:54,216 INFO L158 Benchmark]: Boogie Preprocessor took 20.76ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 103.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:48:54,217 INFO L158 Benchmark]: RCFGBuilder took 252.04ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 90.7MB in the end (delta: 12.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:48:54,217 INFO L158 Benchmark]: CodeCheck took 581.78ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 60.2MB in the end (delta: 30.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-05 21:48:54,217 INFO L158 Benchmark]: Witness Printer took 4.12ms. Allocated memory is still 142.6MB. Free memory was 60.2MB in the beginning and 60.0MB in the end (delta: 186.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:48:54,220 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: 0.5s, 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, 0.2s 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 21, overapproximation of someBinaryFLOATComparisonOperation at line 23, overapproximation of someBinaryFLOATComparisonOperation at line 33, 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 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.79ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 105.3MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.22ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 104.0MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.76ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 103.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 252.04ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 90.7MB in the end (delta: 12.2MB). There was no memory consumed. Max. memory is 16.1GB. * CodeCheck took 581.78ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 60.2MB in the end (delta: 30.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 4.12ms. Allocated memory is still 142.6MB. Free memory was 60.2MB in the beginning and 60.0MB in the end (delta: 186.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 21:48:54,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/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_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/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_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/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_7e05cb0b-27ca-44fa-b207-f23ac03358ed/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_7e05cb0b-27ca-44fa-b207-f23ac03358ed/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 198a885d453136e0f485e10bae010eb2ed68236b2d57919bf162df9bdad27ee6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 21:48:56,190 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 21:48:56,272 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-12-05 21:48:56,299 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 21:48:56,299 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 21:48:56,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 21:48:56,300 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 21:48:56,300 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 21:48:56,300 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 21:48:56,300 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 21:48:56,300 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 21:48:56,300 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 21:48:56,301 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 21:48:56,301 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 21:48:56,301 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 21:48:56,301 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 21:48:56,301 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 21:48:56,301 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 21:48:56,301 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 21:48:56,301 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 21:48:56,301 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 21:48:56,301 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 21:48:56,301 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 21:48:56,302 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 21:48:56,302 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 21:48:56,302 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 21:48:56,302 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 21:48:56,302 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-05 21:48:56,302 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 21:48:56,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:48:56,302 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 21:48:56,302 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 21:48:56,302 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 21:48:56,302 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-05 21:48:56,302 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 21:48:56,303 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-05 21:48:56,303 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_7e05cb0b-27ca-44fa-b207-f23ac03358ed/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 -> 198a885d453136e0f485e10bae010eb2ed68236b2d57919bf162df9bdad27ee6 [2024-12-05 21:48:56,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 21:48:56,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 21:48:56,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 21:48:56,568 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 21:48:56,568 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 21:48:56,570 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c [2024-12-05 21:48:59,341 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/data/9519dea00/4ec74fcc38b343548aeedaa25a1ff53c/FLAG5af5cb576 [2024-12-05 21:48:59,532 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 21:48:59,533 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c [2024-12-05 21:48:59,541 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/data/9519dea00/4ec74fcc38b343548aeedaa25a1ff53c/FLAG5af5cb576 [2024-12-05 21:48:59,893 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/data/9519dea00/4ec74fcc38b343548aeedaa25a1ff53c [2024-12-05 21:48:59,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 21:48:59,896 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 21:48:59,897 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 21:48:59,897 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 21:48:59,900 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 21:48:59,900 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:48:59" (1/1) ... [2024-12-05 21:48:59,901 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17e7f225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:48:59, skipping insertion in model container [2024-12-05 21:48:59,901 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:48:59" (1/1) ... [2024-12-05 21:48:59,910 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 21:49:00,008 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_7e05cb0b-27ca-44fa-b207-f23ac03358ed/sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c[1306,1319] [2024-12-05 21:49:00,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:49:00,020 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 21:49:00,034 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_7e05cb0b-27ca-44fa-b207-f23ac03358ed/sv-benchmarks/c/float-benchs/interpolation.c.p+cfa-reducer.c[1306,1319] [2024-12-05 21:49:00,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:49:00,045 INFO L204 MainTranslator]: Completed translation [2024-12-05 21:49:00,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:49:00 WrapperNode [2024-12-05 21:49:00,046 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 21:49:00,047 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 21:49:00,047 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 21:49:00,047 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 21:49:00,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:49:00" (1/1) ... [2024-12-05 21:49:00,057 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:49:00" (1/1) ... [2024-12-05 21:49:00,072 INFO L138 Inliner]: procedures = 19, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 102 [2024-12-05 21:49:00,072 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 21:49:00,073 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 21:49:00,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 21:49:00,073 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 21:49:00,079 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:49:00" (1/1) ... [2024-12-05 21:49:00,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:49:00" (1/1) ... [2024-12-05 21:49:00,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:49:00" (1/1) ... [2024-12-05 21:49:00,082 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:49:00" (1/1) ... [2024-12-05 21:49:00,088 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:49:00" (1/1) ... [2024-12-05 21:49:00,088 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:49:00" (1/1) ... [2024-12-05 21:49:00,090 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:49:00" (1/1) ... [2024-12-05 21:49:00,091 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:49:00" (1/1) ... [2024-12-05 21:49:00,092 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:49:00" (1/1) ... [2024-12-05 21:49:00,094 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 21:49:00,095 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 21:49:00,095 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 21:49:00,095 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 21:49:00,096 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:49:00" (1/1) ... [2024-12-05 21:49:00,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:49:00,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 21:49:00,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 21:49:00,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 21:49:00,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 21:49:00,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-12-05 21:49:00,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 21:49:00,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-05 21:49:00,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-12-05 21:49:00,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 21:49:00,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 21:49:00,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-05 21:49:00,204 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 21:49:00,205 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 21:49:03,155 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-12-05 21:49:03,155 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 21:49:03,185 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 21:49:03,185 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 21:49:03,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:49:03 BoogieIcfgContainer [2024-12-05 21:49:03,186 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 21:49:03,186 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 21:49:03,186 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 21:49:03,201 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 21:49:03,201 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:49:03" (1/1) ... [2024-12-05 21:49:03,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 21:49:03,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:49:03,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2024-12-05 21:49:03,242 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2024-12-05 21:49:03,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-05 21:49:03,243 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:49:03,244 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:49:03,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:49:03,245 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:49:03,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-05 21:49:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:49:03,379 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:49:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:49:03,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-05 21:49:03,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:49:03,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:49:03,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-05 21:49:03,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:49:03,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2024-12-05 21:49:03,663 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2024-12-05 21:49:03,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-05 21:49:03,663 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:49:03,663 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:49:03,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:49:03,665 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:49:03,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-05 21:49:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:49:03,790 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:49:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:49:03,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-05 21:49:03,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:49:03,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:49:03,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-12-05 21:49:04,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:49:04,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2024-12-05 21:49:04,028 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2024-12-05 21:49:04,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-05 21:49:04,029 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:49:04,029 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:49:04,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:49:04,030 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:49:04,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-12-05 21:49:04,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:49:04,750 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:49:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:49:11,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-05 21:49:11,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:49:13,824 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-05 21:49:13,825 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 [2024-12-05 21:50:04,333 WARN L286 SmtUtils]: Spent 22.04s 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) [2024-12-05 21:50:09,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:50:09,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-12-05 21:50:27,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-05 21:50:30,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-05 21:51:14,721 WARN L286 SmtUtils]: Spent 6.67s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 21:51:24,729 WARN L539 Checker$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] [2024-12-05 21:51:27,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.19s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-05 21:51:37,944 WARN L539 Checker$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] [2024-12-05 21:51:45,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-05 21:51:49,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.54s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-05 21:51:51,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-05 21:51:55,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.57s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-05 21:51:55,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:51:55,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 25 states and 38 transitions. [2024-12-05 21:51:55,943 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-12-05 21:51:55,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-05 21:51:55,945 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:51:55,945 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:51:55,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:51:55,947 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:51:55,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-12-05 21:51:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:51:56,059 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:51:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:51:56,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-05 21:51:56,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:52:00,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:52:00,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-12-05 21:52:25,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:52:25,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2024-12-05 21:52:25,602 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2024-12-05 21:52:25,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-05 21:52:25,602 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:52:25,602 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:52:25,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:52:25,604 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:52:25,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-12-05 21:52:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:52:26,326 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:52:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:52:35,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-05 21:52:35,975 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:53:07,838 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-05 21:53:07,838 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 [2024-12-05 21:53:58,072 WARN L286 SmtUtils]: Spent 5.54s 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) [2024-12-05 21:54:07,143 WARN L286 SmtUtils]: Spent 6.17s 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) [2024-12-05 21:55:17,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:55:17,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2024-12-05 21:56:29,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-05 21:56:39,050 WARN L539 Checker$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] [2024-12-05 21:56:46,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.94s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-05 21:56:55,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.58s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-05 21:56:55,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:56:55,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 29 states and 44 transitions. [2024-12-05 21:56:55,507 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2024-12-05 21:56:55,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-05 21:56:55,508 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:56:55,508 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:56:55,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:56:55,510 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:56:55,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-12-05 21:56:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:56:55,905 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:56:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:56:56,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-05 21:56:56,017 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:57:02,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:57:02,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2024-12-05 21:57:15,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:57:15,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 30 states and 46 transitions. [2024-12-05 21:57:15,775 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2024-12-05 21:57:15,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 21:57:15,776 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:57:15,776 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:57:15,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:57:15,778 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:57:15,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-12-05 21:57:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:57:16,542 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:57:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:57:23,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-05 21:57:23,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:58:15,579 INFO L349 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2024-12-05 21:58:15,579 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 [2024-12-05 22:00:51,030 WARN L286 SmtUtils]: Spent 20.44s 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) [2024-12-05 22:00:58,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:00:58,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e05cb0b-27ca-44fa-b207-f23ac03358ed/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0