./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-floats-scientific-comp/loop2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-floats-scientific-comp/loop2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk --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 1b47128f3a13b8a14fa5679442cf3dce52b78403c71ab556b465499f91ebd451 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:40:40,448 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:40:40,509 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 22:40:40,517 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:40:40,520 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:40:40,557 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:40:40,558 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:40:40,559 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:40:40,560 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:40:40,561 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:40:40,562 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:40:40,562 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:40:40,562 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:40:40,564 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:40:40,567 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:40:40,568 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:40:40,568 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:40:40,568 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:40:40,568 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:40:40,569 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:40:40,569 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:40:40,570 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:40:40,570 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:40:40,570 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:40:40,571 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:40:40,573 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:40:40,573 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:40:40,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:40:40,574 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:40:40,574 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:40:40,574 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:40:40,575 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:40:40,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:40:40,577 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_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b47128f3a13b8a14fa5679442cf3dce52b78403c71ab556b465499f91ebd451 [2024-11-08 22:40:40,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:40:40,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:40:40,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:40:40,898 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:40:40,898 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:40:40,900 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/loop-floats-scientific-comp/loop2-1.c Unable to find full path for "g++" [2024-11-08 22:40:42,891 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:40:43,089 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:40:43,090 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/sv-benchmarks/c/loop-floats-scientific-comp/loop2-1.c [2024-11-08 22:40:43,099 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/data/8dee2ace3/774864c41efd4839adf2ed4f652825b0/FLAG68bf9973e [2024-11-08 22:40:43,463 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/data/8dee2ace3/774864c41efd4839adf2ed4f652825b0 [2024-11-08 22:40:43,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:40:43,467 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:40:43,469 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:40:43,469 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:40:43,477 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:40:43,477 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:40:43" (1/1) ... [2024-11-08 22:40:43,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a91ee54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:43, skipping insertion in model container [2024-11-08 22:40:43,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:40:43" (1/1) ... [2024-11-08 22:40:43,502 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:40:43,688 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_29f0198a-f5fd-405d-9084-bdb1e30a1881/sv-benchmarks/c/loop-floats-scientific-comp/loop2-1.c[474,487] [2024-11-08 22:40:43,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:40:43,717 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:40:43,731 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_29f0198a-f5fd-405d-9084-bdb1e30a1881/sv-benchmarks/c/loop-floats-scientific-comp/loop2-1.c[474,487] [2024-11-08 22:40:43,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:40:43,757 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:40:43,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:43 WrapperNode [2024-11-08 22:40:43,757 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:40:43,758 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:40:43,758 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:40:43,758 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:40:43,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:43" (1/1) ... [2024-11-08 22:40:43,773 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:43" (1/1) ... [2024-11-08 22:40:43,791 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2024-11-08 22:40:43,792 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:40:43,793 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:40:43,793 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:40:43,793 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:40:43,805 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:43" (1/1) ... [2024-11-08 22:40:43,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:43" (1/1) ... [2024-11-08 22:40:43,807 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:43" (1/1) ... [2024-11-08 22:40:43,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:43" (1/1) ... [2024-11-08 22:40:43,811 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:43" (1/1) ... [2024-11-08 22:40:43,815 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:43" (1/1) ... [2024-11-08 22:40:43,816 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:43" (1/1) ... [2024-11-08 22:40:43,817 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:43" (1/1) ... [2024-11-08 22:40:43,819 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:40:43,820 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:40:43,820 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:40:43,820 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:40:43,821 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:43" (1/1) ... [2024-11-08 22:40:43,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:40:43,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:40:43,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:40:43,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:40:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:40:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:40:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:40:43,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:40:43,963 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:40:43,966 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:40:44,114 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-08 22:40:44,115 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:40:44,187 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:40:44,187 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 22:40:44,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:40:44 BoogieIcfgContainer [2024-11-08 22:40:44,188 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:40:44,189 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:40:44,189 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:40:44,198 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:40:44,198 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:40:44" (1/1) ... [2024-11-08 22:40:44,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:40:44,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:40:44,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2024-11-08 22:40:44,256 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2024-11-08 22:40:44,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-08 22:40:44,257 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:40:44,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:40:44,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:40:44,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:40:44,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:40:44,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-08 22:40:44,440 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-08 22:40:44,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-08 22:40:44,441 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:40:44,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:40:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:40:44,483 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:40:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:40:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:40:44,568 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:40:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:40:44,591 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-08 22:40:44,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:40:44 ImpRootNode [2024-11-08 22:40:44,616 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:40:44,616 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:40:44,617 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:40:44,617 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:40:44,617 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:40:44" (3/4) ... [2024-11-08 22:40:44,620 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 22:40:44,621 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:40:44,622 INFO L158 Benchmark]: Toolchain (without parser) took 1154.54ms. Allocated memory is still 182.5MB. Free memory was 145.6MB in the beginning and 100.3MB in the end (delta: 45.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-11-08 22:40:44,622 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 127.9MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:40:44,623 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.60ms. Allocated memory is still 182.5MB. Free memory was 145.6MB in the beginning and 133.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 22:40:44,623 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.09ms. Allocated memory is still 182.5MB. Free memory was 133.0MB in the beginning and 131.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:40:44,624 INFO L158 Benchmark]: Boogie Preprocessor took 26.02ms. Allocated memory is still 182.5MB. Free memory was 131.2MB in the beginning and 130.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:40:44,625 INFO L158 Benchmark]: RCFGBuilder took 368.51ms. Allocated memory is still 182.5MB. Free memory was 130.1MB in the beginning and 117.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 22:40:44,625 INFO L158 Benchmark]: CodeCheck took 426.82ms. Allocated memory is still 182.5MB. Free memory was 117.5MB in the beginning and 100.3MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 22:40:44,626 INFO L158 Benchmark]: Witness Printer took 4.78ms. Allocated memory is still 182.5MB. Free memory is still 100.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:40:44,629 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 7 mSDtfsCounter, 1 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 30 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 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: 12]: 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 49, overapproximation of someBinaryArithmeticFLOAToperation at line 32. Possible FailurePath: [L14] float pi = 3.14159 ; [L20] float x = __VERIFIER_nondet_float() ; [L21] float octant = pi/3 ; [L22] CALL assume_abort_if_not(x > 0 && x < octant) [L10] COND FALSE !(!cond) [L22] RET assume_abort_if_not(x > 0 && x < octant) [L23] float oddExp = x ; [L24] float evenExp = 1.0 ; [L25] float term = x ; [L26] unsigned int count = 2 ; [L27] int multFactor = 0 ; [L28] int temp ; VAL [count=2, pi=314159/100000] [L30] COND TRUE 1 [L32] term = term * (x/count) [L33] multFactor = (count>>1 % 2 == 0) ? 1 : -1 [L35] evenExp = evenExp + multFactor*term [L37] count++ [L39] term = term * (x/count) [L41] oddExp = oddExp + multFactor*term [L43] count++ [L45] temp = __VERIFIER_nondet_int() [L46] COND TRUE temp == 0 VAL [count=4, pi=314159/100000] [L49] CALL __VERIFIER_assert( oddExp >= evenExp ) [L12] COND TRUE !(cond) VAL [pi=314159/100000] [L12] reach_error() VAL [pi=314159/100000] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 127.9MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.60ms. Allocated memory is still 182.5MB. Free memory was 145.6MB in the beginning and 133.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.09ms. Allocated memory is still 182.5MB. Free memory was 133.0MB in the beginning and 131.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.02ms. Allocated memory is still 182.5MB. Free memory was 131.2MB in the beginning and 130.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 368.51ms. Allocated memory is still 182.5MB. Free memory was 130.1MB in the beginning and 117.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 426.82ms. Allocated memory is still 182.5MB. Free memory was 117.5MB in the beginning and 100.3MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.78ms. Allocated memory is still 182.5MB. Free memory is still 100.3MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 22:40:44,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-floats-scientific-comp/loop2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk --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 1b47128f3a13b8a14fa5679442cf3dce52b78403c71ab556b465499f91ebd451 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:40:47,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:40:47,129 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-11-08 22:40:47,172 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:40:47,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:40:47,176 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:40:47,177 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:40:47,177 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:40:47,178 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:40:47,179 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:40:47,180 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:40:47,180 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:40:47,181 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:40:47,181 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:40:47,181 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:40:47,182 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:40:47,182 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 22:40:47,182 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 22:40:47,183 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:40:47,183 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 22:40:47,183 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:40:47,187 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:40:47,188 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:40:47,188 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:40:47,189 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:40:47,189 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:40:47,189 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:40:47,189 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 22:40:47,190 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:40:47,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:40:47,190 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:40:47,191 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:40:47,194 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:40:47,195 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 22:40:47,195 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:40:47,196 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 22:40:47,196 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_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b47128f3a13b8a14fa5679442cf3dce52b78403c71ab556b465499f91ebd451 [2024-11-08 22:40:47,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:40:47,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:40:47,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:40:47,687 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:40:47,688 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:40:47,690 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/loop-floats-scientific-comp/loop2-1.c Unable to find full path for "g++" [2024-11-08 22:40:49,717 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:40:49,979 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:40:49,980 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/sv-benchmarks/c/loop-floats-scientific-comp/loop2-1.c [2024-11-08 22:40:49,987 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/data/826f36415/8539392d04d14941b34191e089ce5326/FLAGa2574c072 [2024-11-08 22:40:50,316 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/data/826f36415/8539392d04d14941b34191e089ce5326 [2024-11-08 22:40:50,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:40:50,323 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:40:50,326 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:40:50,328 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:40:50,333 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:40:50,334 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:40:50" (1/1) ... [2024-11-08 22:40:50,335 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20cb321e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:50, skipping insertion in model container [2024-11-08 22:40:50,338 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:40:50" (1/1) ... [2024-11-08 22:40:50,364 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:40:50,547 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_29f0198a-f5fd-405d-9084-bdb1e30a1881/sv-benchmarks/c/loop-floats-scientific-comp/loop2-1.c[474,487] [2024-11-08 22:40:50,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:40:50,581 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:40:50,593 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_29f0198a-f5fd-405d-9084-bdb1e30a1881/sv-benchmarks/c/loop-floats-scientific-comp/loop2-1.c[474,487] [2024-11-08 22:40:50,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:40:50,615 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:40:50,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:50 WrapperNode [2024-11-08 22:40:50,616 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:40:50,617 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:40:50,617 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:40:50,617 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:40:50,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:50" (1/1) ... [2024-11-08 22:40:50,635 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:50" (1/1) ... [2024-11-08 22:40:50,658 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2024-11-08 22:40:50,659 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:40:50,659 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:40:50,659 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:40:50,659 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:40:50,668 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:50" (1/1) ... [2024-11-08 22:40:50,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:50" (1/1) ... [2024-11-08 22:40:50,671 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:50" (1/1) ... [2024-11-08 22:40:50,672 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:50" (1/1) ... [2024-11-08 22:40:50,679 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:50" (1/1) ... [2024-11-08 22:40:50,682 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:50" (1/1) ... [2024-11-08 22:40:50,684 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:50" (1/1) ... [2024-11-08 22:40:50,685 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:50" (1/1) ... [2024-11-08 22:40:50,687 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:40:50,688 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:40:50,688 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:40:50,688 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:40:50,689 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:40:50" (1/1) ... [2024-11-08 22:40:50,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:40:50,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:40:50,724 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:40:50,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:40:50,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:40:50,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 22:40:50,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:40:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:40:50,880 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:40:50,882 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:41:01,223 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-08 22:41:01,223 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:41:01,285 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:41:01,285 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 22:41:01,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:41:01 BoogieIcfgContainer [2024-11-08 22:41:01,286 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:41:01,287 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:41:01,287 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:41:01,297 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:41:01,297 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:41:01" (1/1) ... [2024-11-08 22:41:01,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:41:01,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:41:01,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2024-11-08 22:41:01,358 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2024-11-08 22:41:01,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-08 22:41:01,360 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:41:01,361 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:41:01,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:41:01,364 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:41:01,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 22:41:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:41:01,512 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:41:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:41:01,578 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 22:41:01,583 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:41:01,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:41:01,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 22:41:01,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:41:01,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-08 22:41:01,704 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-08 22:41:01,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-08 22:41:01,705 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:41:01,705 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:41:01,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:41:01,707 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:41:01,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f0198a-f5fd-405d-9084-bdb1e30a1881/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-08 22:41:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:41:03,716 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:41:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat