./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1232a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1232a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi --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 6f83584f969f73b8fbd0ee35f3e06725eeb8b2fb54d0ca8487878342f741f280 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:00:16,104 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:00:16,172 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 23:00:16,178 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:00:16,178 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:00:16,201 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:00:16,202 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:00:16,203 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:00:16,204 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:00:16,204 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:00:16,205 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:00:16,205 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:00:16,206 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:00:16,207 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:00:16,210 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:00:16,210 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:00:16,211 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:00:16,212 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:00:16,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:00:16,215 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:00:16,216 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:00:16,219 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:00:16,220 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:00:16,220 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:00:16,221 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:00:16,221 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:00:16,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:00:16,222 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:00:16,223 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:00:16,225 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:00:16,226 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:00:16,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:00:16,227 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:00:16,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f83584f969f73b8fbd0ee35f3e06725eeb8b2fb54d0ca8487878342f741f280 [2023-11-24 23:00:16,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:00:16,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:00:16,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:00:16,540 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:00:16,543 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:00:16,545 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-newlib/float_req_bl_1232a.c [2023-11-24 23:00:19,795 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:00:20,052 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:00:20,053 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/sv-benchmarks/c/float-newlib/float_req_bl_1232a.c [2023-11-24 23:00:20,063 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/data/522b30d00/701d7c8352ba435da9b484868c417ecf/FLAG8bb45d97d [2023-11-24 23:00:20,386 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/data/522b30d00/701d7c8352ba435da9b484868c417ecf [2023-11-24 23:00:20,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:00:20,391 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:00:20,392 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:00:20,393 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:00:20,398 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:00:20,399 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:00:20" (1/1) ... [2023-11-24 23:00:20,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b361c3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:20, skipping insertion in model container [2023-11-24 23:00:20,400 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:00:20" (1/1) ... [2023-11-24 23:00:20,430 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:00:20,601 WARN L240 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_ab16d128-2d65-4c42-a607-43b8e98e8689/sv-benchmarks/c/float-newlib/float_req_bl_1232a.c[1656,1669] [2023-11-24 23:00:20,605 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:00:20,615 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:00:20,635 WARN L240 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_ab16d128-2d65-4c42-a607-43b8e98e8689/sv-benchmarks/c/float-newlib/float_req_bl_1232a.c[1656,1669] [2023-11-24 23:00:20,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:00:20,651 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:00:20,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:20 WrapperNode [2023-11-24 23:00:20,652 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:00:20,653 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:00:20,653 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:00:20,653 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:00:20,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:20" (1/1) ... [2023-11-24 23:00:20,669 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:20" (1/1) ... [2023-11-24 23:00:20,690 INFO L138 Inliner]: procedures = 18, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2023-11-24 23:00:20,691 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:00:20,692 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:00:20,692 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:00:20,692 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:00:20,701 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:20" (1/1) ... [2023-11-24 23:00:20,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:20" (1/1) ... [2023-11-24 23:00:20,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:20" (1/1) ... [2023-11-24 23:00:20,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:20" (1/1) ... [2023-11-24 23:00:20,712 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:20" (1/1) ... [2023-11-24 23:00:20,716 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:20" (1/1) ... [2023-11-24 23:00:20,718 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:20" (1/1) ... [2023-11-24 23:00:20,719 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:20" (1/1) ... [2023-11-24 23:00:20,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:00:20,723 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:00:20,723 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:00:20,723 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:00:20,724 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:20" (1/1) ... [2023-11-24 23:00:20,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:00:20,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:00:20,770 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:00:20,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:00:20,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:00:20,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:00:20,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:00:20,811 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2023-11-24 23:00:20,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2023-11-24 23:00:20,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-24 23:00:20,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:00:20,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:00:20,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:00:20,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:00:20,896 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:00:20,898 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:00:21,123 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:00:21,252 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:00:21,252 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-24 23:00:21,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:00:21 BoogieIcfgContainer [2023-11-24 23:00:21,254 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:00:21,270 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:00:21,270 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:00:21,281 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:00:21,281 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:00:21" (1/1) ... [2023-11-24 23:00:21,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:00:21,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:21,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2023-11-24 23:00:21,355 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2023-11-24 23:00:21,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:00:21,360 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:21,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:00:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:21,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:00:21,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:21,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2023-11-24 23:00:21,619 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2023-11-24 23:00:21,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 23:00:21,621 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:21,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:00:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:00:21,711 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:00:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:00:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:00:21,826 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:00:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:00:21,878 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-24 23:00:21,904 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated [2023-11-24 23:00:21,905 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short10 could not be translated [2023-11-24 23:00:21,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:00:21 ImpRootNode [2023-11-24 23:00:21,909 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:00:21,910 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:00:21,910 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:00:21,911 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:00:21,911 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:00:21" (3/4) ... [2023-11-24 23:00:21,913 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:00:21,914 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:00:21,915 INFO L158 Benchmark]: Toolchain (without parser) took 1524.41ms. Allocated memory is still 151.0MB. Free memory was 111.3MB in the beginning and 100.3MB in the end (delta: 11.0MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2023-11-24 23:00:21,916 INFO L158 Benchmark]: CDTParser took 1.12ms. Allocated memory is still 111.1MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:00:21,916 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.21ms. Allocated memory is still 151.0MB. Free memory was 111.3MB in the beginning and 100.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:00:21,917 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.85ms. Allocated memory is still 151.0MB. Free memory was 100.2MB in the beginning and 98.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:00:21,918 INFO L158 Benchmark]: Boogie Preprocessor took 30.22ms. Allocated memory is still 151.0MB. Free memory was 98.4MB in the beginning and 97.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:00:21,918 INFO L158 Benchmark]: RCFGBuilder took 531.45ms. Allocated memory is still 151.0MB. Free memory was 97.0MB in the beginning and 78.4MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 23:00:21,919 INFO L158 Benchmark]: CodeCheck took 639.99ms. Allocated memory is still 151.0MB. Free memory was 123.3MB in the beginning and 101.2MB in the end (delta: 22.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-24 23:00:21,920 INFO L158 Benchmark]: Witness Printer took 4.18ms. Allocated memory is still 151.0MB. Free memory was 101.2MB in the beginning and 100.3MB in the end (delta: 839.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:00:21,924 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 2 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 16 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - UnprovableResult [Line: 72]: 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 71, overapproximation of someUnaryFLOAToperation at line 67. Possible FailurePath: [L66] float x = 0.0f; [L67] float y = -0.0f; [L68] CALL, EXPR fmin_float(x, y) [L38] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=0] [L15] __uint32_t w; VAL [\old(x)=0, x=0] [L18] ieee_float_shape_type gf_u; [L19] EXPR gf_u.value = (x) [L20] EXPR gf_u.word [L20] EXPR (w) = gf_u.word [L17-L21] { ieee_float_shape_type gf_u; gf_u.value = (x); (w) = gf_u.word; } VAL [\old(x)=0, w=2139095041, x=0] [L23] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L25-L26] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L28-L29] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L31] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L34] return 0; [L38] RET, EXPR __fpclassify_float(x) VAL [\old(x)=0, \old(y)=2, x=0, y=2] [L38] COND TRUE __fpclassify_float(x) == 0 [L39] return y; VAL [\old(x)=0, \old(y)=2, \result=2, x=0, y=2] [L68] RET, EXPR fmin_float(x, y) [L68] float res = fmin_float(x, y); [L71] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=2, x=0, y=2] [L71] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L72] reach_error() VAL [res=2, x=0, y=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.12ms. Allocated memory is still 111.1MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.21ms. Allocated memory is still 151.0MB. Free memory was 111.3MB in the beginning and 100.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.85ms. Allocated memory is still 151.0MB. Free memory was 100.2MB in the beginning and 98.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.22ms. Allocated memory is still 151.0MB. Free memory was 98.4MB in the beginning and 97.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 531.45ms. Allocated memory is still 151.0MB. Free memory was 97.0MB in the beginning and 78.4MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 639.99ms. Allocated memory is still 151.0MB. Free memory was 123.3MB in the beginning and 101.2MB in the end (delta: 22.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 4.18ms. Allocated memory is still 151.0MB. Free memory was 101.2MB in the beginning and 100.3MB in the end (delta: 839.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short10 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 23:00:21,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, 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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1232a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi --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 6f83584f969f73b8fbd0ee35f3e06725eeb8b2fb54d0ca8487878342f741f280 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:00:24,536 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:00:24,663 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 23:00:24,727 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:00:24,728 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:00:24,729 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:00:24,730 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:00:24,731 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:00:24,732 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:00:24,736 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:00:24,737 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:00:24,737 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:00:24,738 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:00:24,739 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:00:24,740 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:00:24,740 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:00:24,740 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:00:24,741 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:00:24,741 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:00:24,742 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:00:24,743 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:00:24,743 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:00:24,744 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:00:24,744 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:00:24,744 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:00:24,745 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:24,745 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 23:00:24,746 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:00:24,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:00:24,746 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:00:24,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:00:24,748 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:00:24,748 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:00:24,749 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:24,749 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:00:24,749 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 23:00:24,749 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:00:24,749 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f83584f969f73b8fbd0ee35f3e06725eeb8b2fb54d0ca8487878342f741f280 [2023-11-24 23:00:25,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:00:25,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:00:25,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:00:25,128 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:00:25,128 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:00:25,130 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-newlib/float_req_bl_1232a.c [2023-11-24 23:00:28,249 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:00:28,529 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:00:28,530 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/sv-benchmarks/c/float-newlib/float_req_bl_1232a.c [2023-11-24 23:00:28,538 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/data/fbe3d38e8/1653495ba2a24cda8dfcce2bf335ebca/FLAGa662d1635 [2023-11-24 23:00:28,551 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/data/fbe3d38e8/1653495ba2a24cda8dfcce2bf335ebca [2023-11-24 23:00:28,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:00:28,556 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:00:28,557 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:00:28,557 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:00:28,562 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:00:28,562 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:00:28" (1/1) ... [2023-11-24 23:00:28,563 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5493cdd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:28, skipping insertion in model container [2023-11-24 23:00:28,564 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:00:28" (1/1) ... [2023-11-24 23:00:28,584 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:00:28,770 WARN L240 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_ab16d128-2d65-4c42-a607-43b8e98e8689/sv-benchmarks/c/float-newlib/float_req_bl_1232a.c[1656,1669] [2023-11-24 23:00:28,775 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:00:28,796 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:00:28,851 WARN L240 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_ab16d128-2d65-4c42-a607-43b8e98e8689/sv-benchmarks/c/float-newlib/float_req_bl_1232a.c[1656,1669] [2023-11-24 23:00:28,853 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:00:28,878 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:00:28,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:28 WrapperNode [2023-11-24 23:00:28,879 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:00:28,880 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:00:28,881 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:00:28,881 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:00:28,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:28" (1/1) ... [2023-11-24 23:00:28,916 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:28" (1/1) ... [2023-11-24 23:00:28,952 INFO L138 Inliner]: procedures = 21, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2023-11-24 23:00:28,953 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:00:28,955 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:00:28,955 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:00:28,955 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:00:28,967 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:28" (1/1) ... [2023-11-24 23:00:28,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:28" (1/1) ... [2023-11-24 23:00:28,982 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:28" (1/1) ... [2023-11-24 23:00:28,983 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:28" (1/1) ... [2023-11-24 23:00:29,000 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:28" (1/1) ... [2023-11-24 23:00:29,020 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:28" (1/1) ... [2023-11-24 23:00:29,022 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:28" (1/1) ... [2023-11-24 23:00:29,024 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:28" (1/1) ... [2023-11-24 23:00:29,033 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:00:29,034 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:00:29,034 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:00:29,034 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:00:29,035 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:28" (1/1) ... [2023-11-24 23:00:29,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:00:29,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:00:29,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:00:29,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:00:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:00:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:00:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:00:29,167 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2023-11-24 23:00:29,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2023-11-24 23:00:29,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 23:00:29,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:00:29,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:00:29,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-24 23:00:29,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:00:29,324 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:00:29,335 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:00:29,628 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:00:29,766 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:00:29,767 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-24 23:00:29,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:00:29 BoogieIcfgContainer [2023-11-24 23:00:29,769 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:00:29,770 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:00:29,771 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:00:29,783 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:00:29,783 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:00:29" (1/1) ... [2023-11-24 23:00:29,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:00:29,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:29,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2023-11-24 23:00:29,856 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2023-11-24 23:00:29,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 23:00:29,861 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:29,863 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:29,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:29,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:29,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 23:00:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:30,019 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:30,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:00:30,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:30,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:00:30,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:30,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:30,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2023-11-24 23:00:30,158 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2023-11-24 23:00:30,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:00:30,159 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:30,159 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:30,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:30,161 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:30,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-24 23:00:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:30,408 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:30,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 23:00:30,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:30,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:00:30,520 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:30,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:30,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:30,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 27 transitions. [2023-11-24 23:00:30,645 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2023-11-24 23:00:30,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 23:00:30,646 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:30,646 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:30,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:30,652 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:30,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-24 23:00:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:30,795 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:30,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:00:30,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:30,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:00:30,830 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:30,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-11-24 23:00:30,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:30,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 25 transitions. [2023-11-24 23:00:30,839 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-11-24 23:00:30,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 23:00:30,840 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:30,840 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:30,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:30,848 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:30,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-24 23:00:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:31,151 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:31,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:31,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-24 23:00:31,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:31,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 23:00:31,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2023-11-24 23:00:31,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:00:31,442 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:31,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:31,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:31,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 30 transitions. [2023-11-24 23:00:31,740 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2023-11-24 23:00:31,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 23:00:31,740 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:31,741 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:31,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:31,744 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:31,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-24 23:00:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:32,078 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:32,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-24 23:00:32,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:32,263 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:00:32,265 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2023-11-24 23:00:33,991 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:00:33,992 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2023-11-24 23:00:34,986 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-24 23:00:34,992 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (6)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:00:34,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:36,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:36,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 18 states and 18 transitions. [2023-11-24 23:00:36,233 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-11-24 23:00:36,233 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:00:36,233 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2023-11-24 23:00:36,242 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-24 23:00:36,399 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2023-11-24 23:00:36,404 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:00:36,405 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:00:36,405 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:00:36,405 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:00:36,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:00:36 ImpRootNode [2023-11-24 23:00:36,406 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:00:36,407 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:00:36,407 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:00:36,407 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:00:36,408 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:00:29" (3/4) ... [2023-11-24 23:00:36,410 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:00:36,413 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __fpclassify_float [2023-11-24 23:00:36,420 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-11-24 23:00:36,420 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-24 23:00:36,420 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 23:00:36,421 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 23:00:36,450 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\old(x) == x) [2023-11-24 23:00:36,487 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\old(x) == x) [2023-11-24 23:00:36,545 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 23:00:36,545 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 23:00:36,546 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:00:36,546 INFO L158 Benchmark]: Toolchain (without parser) took 7990.76ms. Allocated memory was 81.8MB in the beginning and 119.5MB in the end (delta: 37.7MB). Free memory was 58.8MB in the beginning and 65.2MB in the end (delta: -6.4MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2023-11-24 23:00:36,547 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 60.8MB. Free memory was 37.2MB in the beginning and 37.2MB in the end (delta: 48.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:00:36,547 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.37ms. Allocated memory is still 81.8MB. Free memory was 58.6MB in the beginning and 47.0MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-24 23:00:36,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.80ms. Allocated memory is still 81.8MB. Free memory was 46.8MB in the beginning and 45.1MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:00:36,548 INFO L158 Benchmark]: Boogie Preprocessor took 78.34ms. Allocated memory is still 81.8MB. Free memory was 45.1MB in the beginning and 43.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:00:36,549 INFO L158 Benchmark]: RCFGBuilder took 735.58ms. Allocated memory is still 81.8MB. Free memory was 43.6MB in the beginning and 45.7MB in the end (delta: -2.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-24 23:00:36,549 INFO L158 Benchmark]: CodeCheck took 6635.59ms. Allocated memory was 81.8MB in the beginning and 119.5MB in the end (delta: 37.7MB). Free memory was 45.7MB in the beginning and 70.4MB in the end (delta: -24.7MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2023-11-24 23:00:36,549 INFO L158 Benchmark]: Witness Printer took 139.31ms. Allocated memory is still 119.5MB. Free memory was 69.4MB in the beginning and 65.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:00:36,553 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 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 204 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 122 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 162 IncrementalHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 115 mSDtfsCounter, 162 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 535 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 66 ConstructedInterpolants, 2 QuantifiedInterpolants, 459 SizeOfPredicates, 29 NumberOfNonLiveVariables, 280 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 5/5 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 - PositiveResult [Line: 72]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (\old(x) == x) - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 60.8MB. Free memory was 37.2MB in the beginning and 37.2MB in the end (delta: 48.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.37ms. Allocated memory is still 81.8MB. Free memory was 58.6MB in the beginning and 47.0MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.80ms. Allocated memory is still 81.8MB. Free memory was 46.8MB in the beginning and 45.1MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.34ms. Allocated memory is still 81.8MB. Free memory was 45.1MB in the beginning and 43.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 735.58ms. Allocated memory is still 81.8MB. Free memory was 43.6MB in the beginning and 45.7MB in the end (delta: -2.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * CodeCheck took 6635.59ms. Allocated memory was 81.8MB in the beginning and 119.5MB in the end (delta: 37.7MB). Free memory was 45.7MB in the beginning and 70.4MB in the end (delta: -24.7MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * Witness Printer took 139.31ms. Allocated memory is still 119.5MB. Free memory was 69.4MB in the beginning and 65.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 23:00:36,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab16d128-2d65-4c42-a607-43b8e98e8689/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE